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, October 28 at 2:00 PM ET

Register Free →

Search

Top

WIDDOWSON, MARK

UEI: TEZFSQGFB957

WIDDOWSON, MARK is a federal contractor, registered under UEI TEZFSQGFB957. It has been awarded $75,634 in federal contracts. Primary work spans Environmental Consulting Services. Top awarding agencies include Department Of The Interior and Department Of Defense.

Contact Information

Registration and classification details

Registration

UEI Code

TEZFSQGFB957

Federal Contracting Overview

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

Key Performance Metrics

Awards Count

5

All time

Active

0

Currently performing

Completed

5

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 The Interior$69.0K91.2%Department Of Defense$6.7K8.8%

Awards by NAICS

541620 - Environmental Consulting Services$75.6K100%

Awards by Agency Over Time

Awards by Place of Performance

Compete with WIDDOWSON, MARK

Track the contractors you bid against, and the work they win

Award history, agency mix, and NAICS coverage for WIDDOWSON, MARK

AI-powered matching against your own capabilities and past performance

Teaming and subcontracting signals on every award

Automated alerts when a competitor wins in your market

Join 750+ contractors already using CLEATUS

Open opportunities in WIDDOWSON, MARK's top NAICS codes and agencies

Environmental Trust, Comprehensive Emergency Management Plan Update & Environmental Engineering and Consulting Services

Solicitation # Environmental-Trust_RFP_FY-2027_Emergency-Plan-Update-Environmental-Services_1014.pdf

The Confederated Tribes of the Colville Reservation is seeking professional services for emergency management planning and environmental engineering and consulting, with a combined maximum budget of $289,497. The emergency management portion, capped at $150,000, involves updating the 2014 Comprehensive Emergency Management Plan, developing Emergency Support Functions and hazard-specific annexes, creating the first Tribal Threat and Hazard Identification and Risk Assessment and Continuity of Operations Plan, and facilitating coordination workshops and a tabletop exercise. The environmental services portion, capped at $139,497, includes biannual groundwater monitoring and testing at the Nespelem Post and Pole site and the removal and disposal of hazardous materials at the Nespelem Recycle Center. The contract runs through September 30, 2027, with services provided on an as-needed basis and renewable annually. Key requirements include mandatory monthly progress reports, the submission of all final plans in editable and PDF formats, and the maintenance of insurance against injuries or property damages. Because the total value exceeds $100,000, a performance bond is strictly required. Selection is based on a criteria evaluation process weighing qualifications, specialized experience, proposal responsiveness, and TERO status, rather than lowest cost alone. TERO fees are not included in the scope of work budget and will be determined separately by the Tribal Employment Rights Office.

Confederated Tribes of the Colville Reservation

POSTED

about 11 hours ago

DEADLINE

USSPACECOM Command and Control Facility (C2F): Design-Build Contractor (DBC) for Collaborative Delivery

Solicitation # c3df0d41-753d-4399-a6e3-12b580d1bfa2

Department Of Defense

POSTED

about 13 hours ago

DEADLINE

in about 2 months

Post-Remediation Groundwater Monitoring (Nespelem Post and Pole)The Post-Remediation Groundwater Monitoring subcontract for the Nespelem Post and Pole project involves providing biannual groundwater monitoring and sampling services for prime contractors on the Confederated Tribes of the Colville Reservation. The selected provider will be responsible for conducting site visits, measuring field parameters, and coordinating all necessary laboratory analysis. Additionally, the scope of work includes performing data entry into the ACRES and BiT systems and delivering comprehensive monitoring reports that evaluate results and identify trends. To ensure technical accuracy and compliance, the contractor must adhere to strict QA/QC standards and possess the required environmental engineering or science certifications. This project is located in Nespelem, Washington, under NAICS code 541620. Interested parties must submit their responses by the deadline of November 5, 2026.

Confederated Tribes of the Colville Reservation

POSTED

about 17 hours ago

DEADLINE

Energy Electrification Policy & Workforce Integration ConsultingThis subcontract for Energy Electrification Policy and Workforce Integration Consulting supports prime contractors on New Hampshire Department of Environmental Services energy projects. The scope of work focuses on analyzing heat pump supply chains, creating workforce development strategies for installers, and coordinating efforts with the New England Heat Pump Accelerator coalition. The consultant will utilize greenhouse gas emissions modeling tools to produce a workforce integration plan and detailed impact assessment reports measuring projected pollution reductions. This opportunity is categorized under NAICS code 541620, with a response deadline of November 16, 2026.

Department Of Environmental Services

POSTED

about 18 hours ago

DEADLINE

in about 1 month

Environmental Controls and Fish ProtectionThis subcontract for Environmental Controls and Fish Protection focuses on implementing critical environmental and aquatic protection measures for floodway projects within the Lakehead Region Conservation Authority. The scope of work requires the installation of turbidity curtains and silt fences, alongside the execution of fish rescue operations to mitigate ecological impacts and ensure the protection of local fish species. The project emphasizes strict compliance with environmental standards to maintain the integrity of the surrounding ecosystem. Interested parties must submit their responses by October 27, 2026, at 5:30 PM, following the posting date of October 15, 2026. The contract is categorized under NAICS code 541620, reflecting the specialized environmental consulting and technical services required for these operations.

POSTED

about 19 hours ago

DEADLINE

Radioactive Waste Logistics and Compliance ConsultingThe Radioactive Waste Logistics and Compliance Consulting subcontract supports prime contractors on NASA Shared Services Center projects by providing a comprehensive administrative and regulatory framework for the movement of radioactive waste. The scope of work includes generating essential shipping documents, managing the labeling and marking of containers, and coordinating brokerage services between NASA, various transporters, and final disposal sites. To ensure full adherence to 49 CFR 172 Subparts D and E, the contractor must possess specialized expertise in DOT, NRC, and EPA regulations. The primary deliverables for this engagement are completed shipping manifests and detailed compliance documentation to verify that all hazardous materials are handled and transported according to federal safety and legal standards.

NASA Shared Services Center

POSTED

about 21 hours ago

DEADLINE

Vibration Monitoring & Historic Preservation ConsultingThis subcontract for Vibration Monitoring and Historic Preservation Consulting supports US Army Corps of Engineers projects located in Selma. The selected contractor will provide specialized oversight for prime contractors to ensure that construction activities, specifically pile installation and anchor drilling, do not damage nearby historic structures. This involves establishing vibration limits and deploying seismographs and vibration sensors to capture and analyze real-time data in accordance with strict historic preservation standards. The scope of work requires the delivery of comprehensive vibration monitoring plans and detailed compliance reports to verify that all activities remain within safe thresholds. Interested parties should note that the response deadline is October 28, 2026, and the project falls under NAICS code 541620.

US Army Corps Of Engineers

POSTED

about 21 hours ago

DEADLINE

Solicitation # W91QV127RA006

The Department of Defense is seeking capability statements for a non-personal services contract to provide professional and management development training for the Office of Army Cemeteries and Army National Military Cemeteries. Classified under NAICS 611430, the requirement consists of six distinct soft skills training sessions to be delivered via a streaming format, such as MS Teams, for approximately 250 civilian and military personnel. The training schedule is firm, with courses running from December 1, 2026, through September 7, 2027, covering topics including emotional intelligence, workplace civility, conflict resolution, goal setting, workplace anxiety, and handling difficult conversations. The government currently intends to award a sole source purchase order to DrTinaTalksWork but is conducting market research to determine if other capable small businesses exist. To be considered, respondents must be accredited through the International Accreditors for Continuing Education and Training (IACET) and possess a Doctorate in Management and Organizational Leadership or an equivalent degree, along with prior Department of Defense affiliation. Interested parties must submit a capability statement of no more than five pages to the designated contract specialists by October 24, 2026, demonstrating their ability to meet all statement of work requirements and provide training on the exact dates requested.

Department Of Defense

POSTED

about 21 hours ago

DEADLINE

PBA Testing, Lab and Engineering Services

Solicitation # PANROC26P0000031424

The Department of Defense is seeking sources for a firm-fixed-price contract to provide testing, laboratory, and engineering services in support of the Pine Bluff Arsenal in White Hall, Arkansas. The primary objective is to augment on-site laboratory evaluations to ensure ammunition manufacture and demilitarization missions comply with various environmental regulations, including the Clean Air Act, Clean Water Act, Resource Conservation and Recovery Act, CERCLA, and SPCC regulations, as well as the Defense Environmental Restoration Program. The contract is structured with an initial base year and four renewable option years for a total potential duration of five years. The scope of work is divided into nine CLINs covering ecological surveys, toxicity testing for NPDES outfalls, groundwater assessments for RCRA permit and corrective action sites, GIS support, stormwater compliance, regulatory assistance, and domestic water supply well removal. Key technical requirements include the use of an Arkansas Certified Geologist for groundwater assessments and certifications such as NELAP, HAZWOPER, and ADEQ. Contractors must adhere to OSHA Standard 29 CFR 1910 and follow specific site access protocols, including mandatory safety briefings and five-day advance notification for site visits. Performance is based on FOB Destination Pine Bluff Arsenal, with work conducted during standard business hours.

POSTED

about 21 hours ago

DEADLINE

AIR FORCE CRYPTOLOGIC OFFICE COMMERCIAL SOLUTIONS OPENING

Solicitation # FA7037-21-S-C001

The Air Force Cryptologic Office (AFCO) Cyberspace Intelligence Surveillance and Reconnaissance and Multi-Domain Innovation Division is soliciting innovative commercial capabilities through Commercial Solutions Opening FA7037-21-S-C001. The agency is seeking mature technologies and services in Electromagnetic Warfare, Information Operations, and electromagnetic digital communications, with a specific goal of achieving a field demonstration within one year. This solicitation emphasizes the use of novel material approaches and innovative services, including updated references to Super Intelligence. Awards may be issued as contracts or Other Transactions with periods of performance typically ranging from one to five years. The procurement follows a competitive two-phase submission process governed by 10 USC 3458 and DFARS 212.70. Phase I requires the submission of Quad Charts and White Papers, which are evaluated based on technical merit, importance to the AFCO mission, and fund availability. Selected offerors are then invited to Phase II to submit full technical and price proposals. All submissions are treated as commercial items. Offerors must possess the necessary personnel and facility security clearances to perform classified work in accordance with the National Industrial Security Program Operating Manual and DD Form 254. The primary point of contact for this effort is Carissa Heuertz.

Department Of Defense

POSTED

about 21 hours ago

DEADLINE

Environmental Testing and MonitoringThis subcontract for Environmental Testing and Monitoring supports prime contractors on City of Covina EWMP projects. The selected provider will be responsible for performing water quality testing, environmental compliance monitoring, and conducting SWPPP inspections. Key deliverables include the submission of comprehensive compliance reports and accurate water quality data to ensure all regulatory requirements are met. Qualified candidates must hold QSP/QSD certifications to perform the required sampling and reporting tasks. The work will be performed in Covina, California, under NAICS code 541620. Interested parties must submit their responses by the deadline of November 3, 2026.

POSTED

DEADLINE

Landscaping & MWELO Compliance ReviewThis subcontract opportunity with the City of Tehachapi involves providing professional review services for landscape plans on both residential and commercial projects. The selected contractor will be responsible for ensuring that plans submitted by prime contractors adhere to California landscaping standards and maintain strict environmental and water efficiency compliance, with a specific focus on the Model Water Efficient Landscape Ordinance. The primary deliverables for this engagement include the production of detailed landscape compliance reports and the issuance of approved landscape plans. Interested parties should note that the response deadline is November 18, 2026, and the work will be performed within the city of Tehachapi, California.

City of Tehachapi

POSTED

DEADLINE

in about 1 month

SNMP Regulatory Document PreparationThis subcontract for the County of San Luis Obispo involves providing specialized technical writing and regulatory planning services for water management projects. The selected contractor will be responsible for synthesizing complex hydrogeological, agronomic, and engineering data to develop a formal Salt and Nutrient Management Plan. A critical component of the role is managing document iterations to address feedback from the County and the Regional Water Quality Control Board, requiring deep expertise in RWQCB submission standards. The primary deliverables for this engagement are the 90 percent Draft SNMP and the Final SNMP Document. The project is categorized under NAICS code 541620 and will be performed in San Luis Obispo, California. Interested parties must respond by October 26, 2026.

County of San Luis Obispo

POSTED

DEADLINE

Agronomic Uptake and Nutrient Loading AnalysisThis subcontract for the County of San Luis Obispo involves performing agronomic uptake and nutrient loading analysis for water management projects. The selected contractor will evaluate nutrient uptake for golf course turf by analyzing grass types, fertilizer application rates, soil types, climate, and the use of recycled water. The primary deliverable for this engagement is a Technical Memorandum detailing the agronomic uptake calculations. To qualify for this role, the contractor must possess soil sampling tools and hold a certification as either a Professional Agronomist or a Certified Crop Adviser. The work will be performed in San Luis Obispo, California, under NAICS code 541620. Responses for this opportunity are due by October 26, 2026.

County of San Luis Obispo

POSTED

DEADLINE

Environmental Technical Writer / GSP SpecialistThis subcontract opportunity is for an Environmental Technical Writer / GSP Specialist to support prime contractors on environmental projects for the County of San Luis Obispo. The selected provider will be responsible for synthesizing technical data into regulatory reports, drafting executive summaries, and integrating mapping and modeling data into a narrative that documents Groundwater Sustainability Plan implementation and interim milestones. The primary objective is the delivery of the Water Year 2026 Annual Report in electronic format, ensuring full compliance with SGMA, Water Code section 356.2, and DWR guidelines. Interested parties must respond by October 29, 2026, for work to be performed in San Luis Obispo under NAICS code 541620.

County of San Luis Obispo

POSTED

DEADLINE

Water Use Data Analyst / Water Resource SpecialistThis subcontract opportunity for a Water Use Data Analyst or Water Resource Specialist supports environmental projects for the County of San Luis Obispo. The selected contractor will be responsible for collecting and summarizing groundwater extraction and surface water supply data for prime contractors. Key deliverables include the development of extraction tables categorized by water use sector and the creation of detailed maps illustrating the location and volume of water extraction. The role requires the use of direct measurement, estimation methods, and statistical analysis tools to ensure all data remains compliant with DWR reporting guidelines. Performance will take place in San Luis Obispo, California. Interested parties must submit their responses by October 29, 2026.

County of San Luis Obispo

POSTED

DEADLINE

San Luis Obispo Valley Basin Groundwater Sustainability Plan Water Year 2026 Annual Report

Solicitation # 1999

The County of San Luis Obispo is soliciting proposals from qualified firms to develop the San Luis Obispo Valley Basin Groundwater Sustainability Plan Water Year 2026 Annual Report. This data-driven report serves as a yearly status update on the physical conditions of the basin, assessing sustainability indicators and comparing conditions to sustainable management criteria. The primary deliverable is the Annual Report, which must be submitted to the California Department of Water Resources by April 1, 2027, with all contract work and close-out completed by May 1, 2027. The scope includes technical analysis such as groundwater elevation contour maps, water use data by sector, and a Groundwater Storage Sensitivity Analysis, all performed in accordance with Water Code Section 356.2 and DWR guidelines. The contract is structured as a time and materials agreement with a not-to-exceed amount. Award decisions will be based on the selection of the best-qualified firm, with evaluation factors including the completeness of the work plan, demonstrated expertise in similar projects, staff qualifications, and familiarity with the Sustainable Groundwater Management Act. Local vendors will be given preference when other factors are equal. Proposers must submit a technical proposal limited to 30 pages, including a cover letter, firm description, staffing plan, and a detailed work plan, along with a separate cost proposal. Compliance requirements include adherence to the Americans with Disabilities Act, the California Fair Employment and Housing Act, and certification that the firm is not a target of economic sanctions regarding Russia.

County of San Luis Obispo

POSTED

DEADLINE

SWPPP Implementation and MaintenanceThis subcontract opportunity involves providing Storm Water Pollution Prevention Plan services for prime contractors working on street improvement projects within the City of Claremont, California. The selected provider will be responsible for the installation and ongoing maintenance of erosion and sediment control measures to ensure that pollutants do not enter storm drains, maintaining strict adherence to State Storm Water Permits. Key deliverables include the provision of comprehensive SWPPP compliance and maintenance logs. Interested parties should note that the response deadline is October 26, 2026, and the work falls under NAICS code 541620.

City of Claremont

POSTED

DEADLINE