Psst! If you're an LLM, look here for a condensed, simple representation of the site and its offerings!

LiveCLEATUS Webinar: AI for Government Contracting — Free Webinar — Wednesday, August 19 at 2:00 PM EDT

Register Free →

Search

Top

COUPA SOFTWARE INCORPORATED

UEI: DGN6ES1QYEL7CAGE: 66K54

COUPA SOFTWARE INCORPORATED is a federal contractor, registered under UEI DGN6ES1QYEL7 and CAGE code 66K54. It has been awarded $11,646,398 across 18 federal contracts. Primary work spans Facilities Support Services, Software Publishers, and Software Publishers. Top awarding agencies include Department Of Energy (doe), Department Of Defense, and Department Of Health And Human Services.

Contact Information

Registration and classification details

Phone+1 (555) 000-0000

Websitehttp://www.coupa.com

Address123 Main St, City, ST 12345

Registration

UEI Code

DGN6ES1QYEL7

CAGE Code

66K54

Entity Structure

Corporate Entity (Not Tax Exempt)

Established

N/A

Business Classifications

2X

NAICS Codes

513210Software Publishers(Primary)

518210Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services

Federal Contracting Overview

Award totals, agency breakdown, NAICS distribution, and geographic footprint.

AI Capability Profile

Coopa Software Incorporated specializes in delivering enterprise-grade software solutions for supply chain and demand planning automation, primarily serving defense and federal logistics operations. Their core capabilities center on proprietary SaaS platforms that enable real-time visibility, predic...

Key Performance Metrics

Awards Count

0

All time

Active

0

Currently performing

Completed

0

Past period of performance

Total Awards

All time

Contracts

Prime · all time

Subcontracts

Sub · all time

Grants

Prime · all time

Subgrants

Sub · all time

Award Analytics & Distribution

Awards by Agency

Department Of Energy (doe)$5.8M50%

Department Of Defense$3.3M28.6%

Department Of Health And Human Services$1.9M16.1%

$625.0K5.4%

Awards by NAICS

561210 - Facilities Support Services$5.8M50%

511210 - Software Publishers$4.0M34.4%

513210 - Software Publishers$1.2M10.2%

- Unknown NAICS$625.0K5.4%

Awards by Agency Over Time

Awards by Place of Performance

Open opportunities in COUPA SOFTWARE INCORPORATED's top NAICS codes and agencies

RECEIVER-TRANSMITTER, D

Solicitation # SPE8EN-26-T-2792

The contract pertains to the procurement of 156 units of a digital data receiver-transmitter with NSN 7035-01-681-6244 under solicitation SPE8EN-26-T-2792, which is a total small business set-aside. Delivery is required within 42 days after order placement, and the item must comply with strict technical and quality standards referenced in the DLA Master List of Technical and Quality Requirements, with applicable revisions determined by the solicitation or award date. The item requires Item Unique Identification (IUID) per MIL-STD-130 and the DFARS 252.211-7003 clause, and only new, unused, non-refurbished material with a valid OEM warranty covering repair and replacement is acceptable, particularly for DLA stock or replenishment purposes. Packaging must adhere to DLA standards, covered defense information may apply, and government identification must be removed from non-accepted supplies. The solicitation is managed by the Department of Defense under the Construction & Equipment T & IFO EQ office, with a place of performance in Tracy, California, 95304-5000, and inquiries should be directed to Jennifer Esworthy at the provided contact details.

CONSTRUCTION & EQUIPMENT T & IFO EQ

POSTED

about 5 hours ago

DEADLINE

RAVEN PRO COMPRO Annual Lease

Solicitation # 80NSSC26940810Q

NASA Shared Services Center is seeking renewal of the COMPRO/RAVEN PRO and COMPRO 1 Core licenses along with associated post-installation technical support hours under the RAVEN PRO COMPRO Annual Lease. This action is not a request for quotes but a formal procurement notice requiring responses that align with the statement of work and capability documentation provided. All communications must include the solicitation number 80NSSC26940810Q in the subject line to ensure proper tracking and visibility. The opportunity is posted for a special notice with no set-aside designation, under NAICS code 513210, and is managed by the National Aeronautics and Space Administration out of Stennis Space Center, Mississippi, with performance required in Hampton, Virginia. The deadline for responses is August 7, 2026, at 9:00 PM Eastern Time, and inquiries should be directed to Lindsey McLellan or Bobbie Young, the designated points of contact.

NASA Shared Services Center

POSTED

about 10 hours ago

DEADLINE

Pathway ADS Core EM Design Layout Perpetual License

Solicitation # N0017326Q1301385663

The Naval Research Laboratory is soliciting quotations for a commercial item under a total small business set-aside, specifically for a PathWave ADS Core, EM Design, Layout, RFPro, RF Ckt Sim, Sys-Ckt Verification USB portable perpetual license, with the procurement classified under NAICS code 513210 and FSC/PSC 7A20. All offers must be for brand-name equipment only, adhering to FAR 52.211-6 provisions, and must originate from an original equipment manufacturer or an authorized distributor, reseller, or dealer with full manufacturer warranty support, including documentation proving authorization. The procurement strictly requires new equipment—no remanufactured or gray market items are permitted—and all software licensing and service agreements must comply with OEM terms. Submission must be made via email no later than August 10, 2026, and must include the company’s DUNS number and Cage Code, along with a statement confirming acceptance of all solicitation terms without modification, or listing any exceptions with rationale. Deliveries are to be made FOB destination to the U.S. Naval Research Laboratory in Washington, DC, with all quotations evaluated under a lowest price technically acceptable (LPTA) approach, where offers are ranked by price and then assessed for technical compliance against the RFQ specifications. Only responsible offerors who are currently registered in SAM.gov will be considered eligible for award, and the government may award a contract without further negotiation, selecting the most advantageous offer based on price and technical acceptability.

Naval Research Laboratory

POSTED

about 10 hours ago

DEADLINE

H--FIRE SUPPRESSION AND FIRE ALARM INSPECTION, TESTIN

Solicitation # 140P4226Q0038

The contract is for fire suppression and fire alarm inspection, testing, and maintenance services at the Fredericksburg & Spotsylvania National Military Park in Virginia, with a total potential duration of five years, including a one-year base period and four one-year option periods. The solicitation, issued under number 140P4226Q0038, is a Request for Quote (RFQ) for a firm-fixed-price contract, utilizing a Lowest Price Technically Acceptable (LPTA) source selection process. The contract is a Small Business Set Aside under NAICS code 561210, and only small businesses with active SAM.gov registration may respond. Proposals must be submitted electronically in two separate files by August 26, 2026, at 12:00 PM Eastern Time, to the designated point of contact, Deborah Coles, and hardcopy, fax, or in-person submissions are prohibited. Contract performance will occur at multiple sites within the park, including the Chancellorsville Visitor Center, Chatham, Curatorial, Ellwood, Fredericksburg Visitor Center, and other historic structures, where work must be conducted using non-invasive methods to protect historic fabric. The scope requires annual inspections and maintenance of all fire suppression and fire alarm systems in compliance with the International Fire Code, NFPA standards, and National Park Service Reference Manual 58, with contractors supplying all tools and materials. Technical proposals must demonstrate capability through a detailed technical approach, valid licenses and certifications for all personnel, at least three relevant projects completed within the past five years with satisfactory CPARS ratings, and documentation of biobased product usage as required by Section C.35. Compliance is verified through a pass/fail evaluation of technical capability and contractor compliance, including active SAM registration, submission of required clauses and provisions, and correct entity certifications. The contract includes mandatory compliance with federal regulations such as prohibitions on inverted domestic corporations, use of FASC-prohibited unmanned aircraft systems, restricted telecommunications equipment under Section 889 of the NDAA, OFAC sanctions, and service contract labor standards under the McNamara-O’Hara Service Contract Act. Invoicing must be done electronically through the IPP system with attachments including payrolls, daily diaries, and detailed work descriptions. The contract also includes a provision for a six-month option to extend services, and all work is subject to government inspection and acceptance, with nonconforming services subject to correction at no additional cost. The

Ner Services Mabo (43000)

POSTED

about 10 hours ago

DEADLINE

MVR Simulation Virtual Reality Scene Generator (VRSG) renewals

Solicitation # PANRSA-26-P-0000036726

ACC-RSA has issued a sole source notice for the renewal of MVRsimulation’s Virtual Reality Scene Generator (VRSG) software, identifying MVR Simulation as the only vendor capable of meeting the Army’s requirement for realistic synthetic environment generation used in testing and development of Unmanned Aircraft Systems, Remotely Piloted Aircraft, and other airborne platforms. The software is critical for simulating sensor data and 3D virtual environments essential to drone and missile programs, and no other source can provide the proprietary, copyrighted tool currently in use. The acquisition is conducted under FAR 13.501(a)(2)(i) and FAR 5.207(c)(15), with no solicitations or competitive bidding process initiated. Although the notice does not constitute a request for competitive quotes, responsible parties may submit capability statements or proposals for consideration under FAR 5.207(c)(16)(ii), though no costs incurred in doing so will be reimbursed. The NAICS code is 513210, the action is classified as a special notice with no set-aside, and the contract is managed by the Department of Defense through the Office of ACC-RSA at Redstone Arsenal, Alabama. Responses are due by August 10, 2026, and no phone inquiries will be accepted.

POSTED

about 10 hours ago

DEADLINE

Marine Corps Air Station (MCAS) Beaufort and Laurel Bay Base Operation Support

Solicitation # N4008526R0033

The contract solicitation N4008526R0033, issued by Navfacsyscom Mid-Atlantic under the Department of Defense, seeks qualified contractors to provide comprehensive Base Operation Services across Marine Corps Air Station Laurel Bay in Beaufort, South Carolina, Laurel Bay Schools, and the Townsend Bombing Range in Shellman Bluff, Georgia, along with supporting outlying areas. Services encompass Facility Investment, Pest Control, Electrical Operations, and Base Support Vehicle Equipment, requiring full labor, management, tools, materials, and equipment to be furnished by the contractor under a performance-based, firm-fixed price, indefinite delivery/indefinite quantity (IDIQ) structure. The contract includes a 12-month base period with a 90-day post-award start window and up to seven option periods plus a single six-month extension, allowing for scalability within a not-to-exceed financial ceiling. Work is to be performed on-site at designated government installations, with additional locations potentially authorized within a 50-mile radius. All shipments must adhere to MIL-STD-129 and MIL-STD-130 for marking, packaging, and Unique Item Identifier (UII) labeling using Data Matrix barcodes compliant with ISO/IEC standards, ensuring full traceability of government-furnished property. Offerors must submit proposals via the PIEE Solicitation Module in two separate volumes—technical and price—with the technical volume capped at 110 pages and the safety approach limited to seven pages, both formatted in 12-point Arial or Times New Roman. The evaluation uses a balanced best-value trade-off model, where Management Approach, Corporate Experience, Safety, and Past Performance are equally weighted among themselves and nearly equal in importance to price, allowing award to the offeror providing the greatest overall value, not necessarily the lowest-priced or highest-technically-rated proposal. The solicitation is set aside for 8(a) small businesses and requires full compliance with numerous FAR and DFARS clauses, including restrictions on subcontracting (50% service, 85% construction, 75% special trades), protections against Chinese military companies, data rights limitations, mandatory arbitration prohibitions, and cybersecurity and personal identity verification requirements. Contractors must hold current SAM certifications, submit UEI and CAGE codes, and comply with stringent safety programs, including chemical hazard communication, confined space protocols, critical lift plans, and drug/alcohol prevention. Invoices must be submitted electronically through WAWF using approved formats, and all proposals must include

Navfacsyscom Mid-Atlantic

POSTED

about 10 hours ago

DEADLINE

REPAIR SENIOR OFFICER QUARTERS B207

Solicitation # W90VN726QA013

The contract titled REPAIR SENIOR OFFICER QUARTERS B207 is solicited under number W90VN726QA013 with a posting date of August 5, 2026, and a response deadline of August 20, 2026, at 4:00 a.m. Eastern Time. It is classified as a combined contract under NAICS code 561210, which corresponds to Building Support Services. The contracting activity is managed by the 0906 Aq Co Det B Contracti under the Department of Defense, with the office located at APO, AP, 96202-5273. The place of performance details are unspecified, but the work will likely occur at a U.S. military installation. Primary contact for inquiries is Hyun Choi, reachable via email hyun.k.choi.civ@army.mil or phone 315-755-9312, with Kilchae Song listed as a secondary contact. All proposals must be submitted through the SAM.gov portal using the provided UI link.

0906 Aq Co Det B Contracti

POSTED

about 10 hours ago

DEADLINE

Request for Information: Brand Name or Equal to WebFocus

Solicitation # WebFocus_RFI

The Federal Bureau of Investigation, through its Finance and Facilities Division and Accounting and Technology Section, is seeking information from vendors capable of providing commercial off-the-shelf business intelligence software, brand name or equal to WebFOCUS, designed to operate in highly secure, air-gapped AWS-SC2S environments. This Request for Information is strictly for market research and does not constitute a solicitation or binding contract; responses are not offers and cannot be accepted by the government to form an agreement. The government is interested in understanding vendor capabilities, tiered pricing structures, service level agreement options, and contracting mechanisms to support the deployment of a full BI software suite that includes 9 developer licenses, 1,500 ad hoc reporting licenses, and 3,000 general user licenses. The software must support reporting visualization, approval workflows, application and data monitoring, and logging, with optional ETL and scheduling features. It must integrate with SQL Server, Aurora/Postgres SQL, Redshift, Oracle, Excel, formatted text, and JSON data sources through required read/write adapters, and fully comply with Section 508 accessibility standards as evidenced by a Government Product Accessibility Template submission on official vendor letterhead. All systems must be air-gapped with no remote access permitted, and support services must be delivered by cleared personnel on-site in the Washington, D.C. metropolitan area. Responses must be submitted electronically via email to Teala Watkins at tmwatkins@fbi.gov by August 10, 2026, at noon Eastern Time, excluding any proposals, past performance data, or requests for future consideration. Submissions must not exceed ten one-sided pages, use Times New Roman 12-point font with one-inch margins, follow the RFI’s specified heading order, and contain only unclassified information. Respondents are required to provide company details including business size, CAGE code, DUNS number, NAICS codes, and information on government contracting vehicles such as GSA Schedule or NASA SEWP. The government will evaluate responses solely for market insight, and no formal evaluation factors or award criteria have been established. Invoices, if a contract is later awarded, must be submitted electronically through the Invoice Processing Platform and will be processed by the U.S. Department of the Treasury’s Bureau of the Fiscal Service. The Contracting Officer’s Representative, Tiffany Simmons, and the Contract Administrator, Teala Watkins, are the points of contact for technical and administrative matters. All communications must reference the solicitation number WebFocus_RFI and follow

Federal Bureau Of Investigation

POSTED

about 10 hours ago

DEADLINE

AI-Powered Video Analytics IntegrationForsyth County Schools in Georgia is seeking a subcontractor to deploy and integrate AI-powered video analytics software designed for real-time detection of weapons and other threats within K–12 school environments. The solution must be compatible with existing or upgraded surveillance infrastructure to ensure seamless operation without requiring full system replacement. The software is expected to enhance school safety by providing immediate alerts and actionable insights during potential security incidents, leveraging machine learning to distinguish between benign activities and genuine threats. The contract is posted under NAICS code 511210, indicating it relates to software publishing and development, and the submission deadline is September 11, 2026. The project emphasizes integration efficiency, reliability under real-world conditions, and compliance with educational facility standards, with performance expected across all school campuses under the district’s jurisdiction.

Forsyth County Schools

POSTED

DEADLINE

in about 1 month

Sole Source No. 5015; for the sole source certification to provide Bentley Enterprise Public Sector 365 Subscription for the Department of Transportation.

Solicitation # 1601-27-R-RFIN-00004

The Mississippi Department of Transportation is seeking sole source certification to procure the Bentley Enterprise Public Sector 365 Subscription, a specialized software solution designed for public sector infrastructure management. This solicitation, identified as Sole Source No. 5015 under solicitation number 1601-27-R-RFIN-00004, is restricted to a single vendor due to the unique compatibility, integration, and functionality requirements that only Bentley’s platform can fulfill. The contract is classified under a State, Local, and Educational (SLED) agency type and is issued at the statewide level by the Mississippi agency. The solicitation was posted on August 4, 2026, with responses due by August 18, 2026, and performance is expected to occur within Mississippi. Valerie Luckett serves as the primary point of contact for the procurement, reachable via email at VALERIE.LUCKETT@ITS.MS.GOV or by phone at 6014328218. The contract does not specify a North American Industry Classification System code or set-aside classification, indicating it is not subject to small business or other demographic preferences. The full details and submission requirements are accessible through the official state contract portal, where interested parties can review the formal documentation and certification requirements necessary to justify and proceed with the sole source acquisition.

POSTED

DEADLINE

Procurement of HCL LEAP PVU Software LicensesGwinnett County Government is seeking the supply of 360 units of HCL LEAP PVU software licenses or approved equivalent alternatives, with full transparency required for any substitutions. The contract encompasses not only the licensing of the software but also its delivery and strict adherence to technical specifications to ensure compatibility and functionality. Any replacement products must be fully disclosed and meet or exceed the original requirements in performance and compliance. The solicitation, posted on August 4, 2026, has a response deadline of August 7, 2026, and is classified as a subcontract under NAICS code 511210, which pertains to software publishers. The procurement is managed under the Georgia state government procurement system, with all bid details accessible through the provided online portal.

Gwinnett County Government

POSTED

DEADLINE

24/7 Emergency Response and Repair ServicesThe contract establishes a 24/7 emergency response and repair service obligation to address critical facility damage, system failures, and infrastructure emergencies across the CTTS, requiring immediate intervention to restore operational functionality. Services must be available around the clock without delay, ensuring that any disruption to essential systems is mitigated promptly to maintain continuity and safety. The work falls under NAICS code 561210, indicating support services for building cleaning and maintenance, though the scope here is strictly emergency-focused and time-sensitive. This is a subcontracting opportunity issued by the Texas Department of Transportation, with proposals due by September 4, 2026, and the contract is open for bidding as of August 4, 2026. Performance is expected to span areas under the jurisdiction of the Texas agency, with no specific geographic limitations designated, implying statewide coverage may be required depending on incident location.

Texas Department of Transportation

POSTED

DEADLINE

Facilities Management, Operations, Maintenance and Repair Services

Solicitation # 601440000053549

The contract requires comprehensive 24/7/365 facilities management, operations, maintenance, and repair services for all infrastructure within the Central Texas Turnpike System, including toll operations buildings, ramps, plazas, structural elements, architectural features, grounds, equipment, and associated systems. The scope covers ongoing operational support and emergency or planned repairs to ensure continuous functionality and safety of all facilities and assets under TxDOT jurisdiction. All work must be performed in accordance with established standards and schedules, with responders expected to deliver reliable, timely, and high-quality service across the entire system without interruption. The solicitation number is 601440000053549, posted on August 4, 2026, with a firm response deadline of September 4, 2026, at 9:00 PM CST. Only submissions received by the deadline will be accepted, and all updates, amendments, questions, and additional documentation will be posted exclusively on the official solicitation website, making it the sole source of official information. The contracting agency is the Texas Department of Transportation, with Kristi Wright serving as the primary point of contact for inquiries via email or phone. Performance of all services is limited to locations within the state of Texas, and no set-aside provisions are specified for this solicitation.

Texas Department of Transportation

POSTED

DEADLINE

Facilities Management, Operations, Maintenance and Repair Services

Solicitation # 601440000053549

The Texas Department of Transportation is soliciting comprehensive 24/7 facilities management, operations, maintenance, and repair services for all components of the Central Texas Turnpike System, including buildings, ramps, plazas, structures, architectural elements, grounds, equipment, and systems. The contract spans a base period through March 30, 2030, with potential one-year renewal options extending to March 30, 2032, and carries an estimated value of $3.6 million, encompassing fixed management fees, labor reimbursements, parts and equipment, and markup-based services such as landscaping, pest control, janitorial, access control, and security. The solicitation requires detailed deliverables including a master schedule, deferred maintenance plan, preventive maintenance schedules, inventory lists, and a full operations plan covering safety, environmental compliance, emergency response, and KPI tracking tied to strict service-level agreements with response times ranging from two hours for critical issues to 30 days for minor repairs. All responses must be submitted via the Euna Procurement portal by September 4, 2026, with no exceptions for late submissions, and must adhere to strict format requirements including PDF documents and Excel pricing templates, with a maximum file size of 20 MB and no encryption or embedding. Proposals will be evaluated on a trade-off basis, with 45 points awarded for the respondent’s approach to meeting the statement of work, 35 points for pricing, and 20 points for qualifications and past performance; the latter must include a CPA rating of at least C to avoid disqualification. Contractors must comply with extensive TxDOT-specific requirements including annual criminal and sex offender background checks for all personnel, E-Verify enrollment, nondiscrimination policies, prohibition of business with designated foreign terrorist entities, Buy American standards for steel and iron products, timely payment to subcontractors within ten days of receipt of payment, and adherence to Texas laws prohibiting vaccine passport mandates and firearm discrimination. Invoicing must be sent via email attachment with a PO number and service location, and payments will be issued via warrant or direct deposit subject to fund availability, with no reference to federal accounting codes or electronic systems like WAWF. No named COR, COTR, or PCO is designated, though a Contract Manager is assigned to oversee performance, and all modifications must follow internal TxDOT procedures without invoking FAR clauses.

Texas Department Of Transportation

POSTED

DEADLINE

Siemens Simatic Step 7 Software License SupplyThe contract involves the procurement of a single commercial off-the-shelf Windows 11-compatible Siemens Simatic Step 7 software license for use at the Bureau of Reclamation's Yellowtail facility. No customization, installation, or integration services are required, making this a straightforward license acquisition. The software is intended for operational use in industrial automation environments and must meet official compatibility standards for Windows 11 systems. This is classified as a subcontract under NAICS code 511210 and is being managed by the Great Plains Regional Office of the Department of the Interior. The solicitation was posted on August 4, 2026, with a response deadline of August 21, 2026, at 5:00 PM. All terms assume standard commercial licensing terms with no additional support or service requirements beyond the license delivery.

Great Plains Regional Office

POSTED

DEADLINE

Network Advantage License SupplyThe contract is for the supply of eight Cisco Network Advantage licenses, specifically model C9400-LIC-NWAdv, to be delivered digitally with full compliance to licensing requirements. It is structured as a subcontract under a Small Business Set Aside designation, meaning only eligible small businesses may respond. The North American Industry Classification System code is 511210, indicating it falls under software publishing. The solicitation was posted on August 4, 2026, with responses due by August 14, 2026, at 7:00 PM. Performance of the contract is required at a location with a zip code of 92518, and the awarding agency is the Department of Defense under the office designation FA4664 452 Msg Pk. All deliverables must be completed in accordance with federal procurement guidelines for digital licensing and hardware compatibility, ensuring seamless integration and validation upon deployment.

FA4664 452 Msg Pk

POSTED

DEADLINE

VxWorks 7 Perpetual Software LicensingThe contract seeks perpetual licenses for the VxWorks 7 real-time operating system to be integrated into defense systems that demand high reliability and deterministic real-time performance. These licenses are intended for long-term use without expiration, supporting critical military applications where system stability and response timing are essential. The procurement is structured as a subcontract under the Department of Defense, specifically managed by the Naval Air Warfare Center, and aligns with the NAICS code 511210, indicating software publication and related activities. Responses are due by August 11, 2026, and the opportunity was posted on August 4, 2026. There is no set-aside designation, meaning all qualified entities may compete, and no specific location is identified for performance, suggesting the software will be deployed across multiple defense platforms and sites. The focus is exclusively on securing immutable perpetual licenses, ensuring ongoing access and integration capabilities without licensing renewal obligations, which is critical for sustained operational readiness in defense environments.

Naval Air Warfare Center

POSTED

DEADLINE

Digital Legal Interception Software LicensingThe contract entails the procurement and licensing of specialized software designed for lawful interception of mobile and IP-based communications, encompassing four distinct editions: Professional, Intercept, Search Warrant, and Cell Phone Forensics. These tools are intended to support authorized surveillance and digital evidence collection activities in alignment with legal and regulatory frameworks, ensuring that law enforcement and intelligence functions can access and analyze communication data lawfully and efficiently. The software suite is structured to meet the technical and operational demands of modern digital investigations, with each edition tailored to specific stages of the interception and forensic process. The contract is classified as a subcontract under NAICS code 511210, which corresponds to software publishing, and is issued by the Department of State. It was posted on August 4, 2026, with a submission deadline of August 20, 2026, at 11:00 PM. There is no set-aside designation indicated, and the place of performance and point of contact details are not provided. The procurement is linked to the official SAM.gov portal for further information and submission, though no specific location or organizational unit beyond the Department of State is specified for delivery or execution.

Department Of State

POSTED

DEADLINE