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ADOLFO SANTIAGO DUNCAN

UEI: VGNYSWA34WJ5

ADOLFO SANTIAGO DUNCAN is a federal contractor, registered under UEI VGNYSWA34WJ5. It has been awarded $15,570 in federal contracts. Primary work spans Landscaping Services. Top awarding agencies include Smithsonian Institution.

Contact Information

Registration and classification details

Registration

UEI Code

VGNYSWA34WJ5

Federal Contracting Overview

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

AI Capability Profile

ADOLFO SANTIAGO DUNCAN provides professional landscaping and grounds maintenance services. Core capabilities include specialized tree cutting and comprehensive gardening services, with demonstrated experience managing vegetation and greenery in station-based environments. The contractor maintains a...

Key performance metrics

Award counts and award dollars by type, as prime and as subcontractor.

Awards Count

2

All time

Active

0

Currently performing

Completed

2

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

Awards by agency, industry, year, award type, size, and place of performance.

Awards by Agency

Smithsonian Institution$15.6K100%

Awards by NAICS

561730 - Landscaping Services$15.6K100%

Awards by Agency Over Time

Awards by Place of Performance

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Open opportunities in ADOLFO SANTIAGO DUNCAN's top NAICS codes and agencies

City of Westminster – Wakefield Valley Park

Solicitation # city-westminster-wakefield-valley-park

Conewago Enterprises, Inc. is soliciting bids from qualified Disadvantaged Business Enterprises for the City of Westminster Wakefield Valley Park project located in Maryland. The submission deadline for bids is November 18, 2026, at 12 PM EST, though this date may be subject to change based on future addenda. Available subcontracting and supply opportunities include fencing, landscaping, painting, seeding, surveying, and tree removal. Interested parties should contact the Estimating Department via email at [email hidden] to obtain the necessary bidding documents or to ask specific questions regarding the solicitation.

Conewago Enterprises, Inc.

POSTED

about 3 hours ago

DEADLINE

Pine Straw Installation Services

Valdosta State University

POSTED

about 3 hours ago

DEADLINE

in about 1 month

VSU Pine Straw Installation

Solicitation # 55100-eRFQ-002096-2027

Valdosta State University is seeking a qualified supplier through Request for Quote 55100-eRFQ-002096-2027 to provide and install pine straw. The contract begins upon award and runs through the end of the state fiscal year on June 30th, with four optional one-year renewals available at the university's discretion. The procurement process requires suppliers to submit responses by December 15, 2026, including a completed cost worksheet, evidence of prior experience with client references, and a commitment to meet all delivery requirements specified in the provided specifications and campus map. Evaluation factors for the award include supplier experience, cost, delivery capabilities, and a review of the supplier's integrity, which includes checking for business litigation within the last five years and any history of suspension or debarment. Awarded contractors must comply with the Federal Work Authorization Program for immigration verification and provide necessary insurance, performance bonds, and payment bonds. Additionally, suppliers must certify their tax compliance and disclose their socioeconomic status, such as whether they are a small, minority-owned, or women-owned business, or a Georgia resident company.

Valdosta State University

POSTED

about 3 hours ago

DEADLINE

in about 1 month

Infrastructure Landscaping Services

CITY OF SAN ANTONIO

POSTED

about 5 hours ago

DEADLINE

in about 1 month

Airport Grounds Maintenance

POSTED

about 6 hours ago

DEADLINE

General Grounds Maintenance (Mowing & Landscaping)

POSTED

about 6 hours ago

DEADLINE

Grounds Maintenance Services - Sheriff Office and Airport

Solicitation # BPM059736

Wicomico County is soliciting electronic sealed bids from qualified vendors to provide grounds maintenance services for two specific locations in Maryland: the Sheriff's Office at 1661 Westwood Dr., Salisbury, MD 21801, and the Airport at 5485 Airport Terminal Road, Unit A, Salisbury, MD 21804. This solicitation, identified as BPM059736, is managed by Wicomico County Purchasing, with Amy Kernodle serving as the Purchasing Agent and Lauralee Oprey as the primary point of contact. Interested vendors must submit their bids through the Wicomico County e-Procurement portal by the deadline of Tuesday, December 8, 2026, at 2:30 p.m. A pre-bid meeting is scheduled for Tuesday, November 24, 2026, at 10:00 a.m. at both the Sheriff's Office and Airport locations. All inquiries regarding the bid must be submitted via the portal by noon on Tuesday, December 1, 2026. Bidders are required to register for an account through the OpenGov hosted portal to submit bids and monitor for any official addenda.

POSTED

about 6 hours ago

DEADLINE

Detention Pond and Erosion Control

City of Vidalia

POSTED

about 6 hours ago

DEADLINE

in about 1 month

Town Lawn Mowing and Maintenance Services Bid No. 2026 – 006

Solicitation # ITB 2026-006

The Town of Riverdale Park is soliciting bids under ITB 2026-006 for a licensed Maryland contractor to provide comprehensive lawn mowing and landscape maintenance services. The scope of work includes the maintenance of Town-owned sites, the state-owned median of East-West Highway, six rain gardens, and two bio-retention facilities. Key responsibilities include general landscape upkeep, spring clean-ups, and monthly pest inspections from April through September. Additionally, the contractor must provide on-call snow and ice removal services between December 1 and March 31, ensuring all ADA accessible routes are cleared. The contract is a three-year agreement starting April 1, 2027, and ending March 31, 2030, with the Town holding the option to extend for two additional one-year terms. Qualified bidders must have at least five years of business experience and provide a bid security equal to 10% of the total bid amount. Required insurance includes workers' compensation, $1,000,000 in general liability, and $1,000,000 in automobile fleet coverage, with the Town named as an additional insured. Bids must be submitted via email by noon on November 20, 2026, and must include various affidavits, including non-collusion and non-conviction certifications.

POSTED

about 6 hours ago

DEADLINE

Landscaping and Exterior Improvements

Thurrock Council

POSTED

about 7 hours ago

DEADLINE

in about 1 month

PARKWAY TREE TRIMMING SERVICES

Solicitation # 26-228

Solicitation 26-228 is a unit price contract for the City of Naperville Department of Public Works to provide comprehensive parkway tree pruning services. The contractor is responsible for furnishing all labor, supervision, materials, and expertise to trim approximately 10,000 trees annually across various subdivisions. Payment is based on five diameter classifications: 1-6 inches, 7-12 inches, 13-24 inches, 25-36 inches, and 37 inches or greater, with measurements taken at 4.5 feet from the ground. The initial term runs from December 1, 2026, through November 30, 2027, with the possibility of four additional one-year extensions based on funding and performance. All subdivision work must be completed by October 1st of each contract year. To be eligible, bidders must demonstrate at least five years of experience and provide three municipal references for contracts exceeding 300 trees. A critical requirement is the presence of an International Society of Arboriculture Certified Arborist on every job site at all times; failure to comply will result in contract termination. The contract is awarded to the responsible bidder with the lowest responsive bid. Key administrative requirements include compliance with the Illinois Prevailing Wage Act, a one-year warranty on services, net 30 payment terms via electronic transfer, and the submission of a 10 percent bid bond. Bidders must also provide a substance abuse prevention program and a certificate of insurance before the award.

Department of Public Works | DPW

POSTED

about 7 hours ago

DEADLINE

Tree Trimming and Canopy Management

Gwinnett County Government

POSTED

about 7 hours ago

DEADLINE

BL138-26, Trimming of Trees in Medians and Along Right of Ways on an Annual Contract

Solicitation # PE-77023-NONST-2027-000000830

Gwinnett County is soliciting competitive sealed bids for an annual, on-demand contract for the trimming, removal, and disposal of tree limbs and debris in medians and along right-of-ways for the Department of Transportation. The scope of work includes the maintenance of approximately 1,397 Crepe Myrtle trees, which require a two-step pruning process to raise the canopy and remove basal undergrowth twice yearly. All services must be performed in accordance with Tree Care Industry Association (TCIA) and ANSI A300 pruning standards, while traffic control must adhere to Manual on Uniform Traffic Control Devices (MUTCD) standards. The contract begins upon award and includes four additional one-year renewal options, with the requirement that pricing remains firm for these periods. The contract will be awarded to the lowest responsive and responsible bidder based on the combined total cost of two pricing tables covering canopy trimming and secondary basal sprout trimming. Bidders must provide at least three references for similar work, a list of dedicated personnel and equipment, and a signed Certification of Non-Collusion. Comprehensive insurance is required, including General Liability, Auto, and Umbrella policies, with the Gwinnett County Board of Commissioners named as an additional insured. Minimum coverage includes a 2 million dollar general aggregate and 1 million dollar per occurrence limit, with insurance carriers requiring an A.M. Best Rating of A-7 or higher. Firms on the Gwinnett County ineligible source list are prohibited from submitting bids.

Gwinnett County Government

POSTED

about 7 hours ago

DEADLINE

Snow Removal Services

Solicitation # 11-2026

The Township of Holmdel is soliciting bids for snow removal and ice treatment services for its roadways, subdivisions, and cul-de-sacs. The contract period begins December 1, 2026, and expires April 30, 2028, with a total potential duration of three years including two optional renewal seasons. The scope of work requires the contractor to provide labor and equipment capable of operating 24 hours a day, seven days a week, with a mobilization requirement to report to the specified location within one hour of notification. Required equipment includes four to five 4x4 pickup trucks and four to five dump trucks, all equipped with power reverse plows. All drivers must hold a valid New Jersey driver's license and a Commercial Driver License as required by the Commercial Motor Vehicles Standards Act. The contract will be awarded to the lowest responsible and responsive bidder. Bidders must submit pricing based on an hourly rate per piece of equipment via the Township's eProcurement platform by December 1, 2026. Essential submission requirements include a bid guarantee of 10% of the highest aggregate base bid (capped at $20,000), a non-collusion affidavit, and various certifications including business registration, non-debarment, and Russia-Belarus vendor certifications. The successful contractor must maintain general liability insurance with a $1 million per occurrence limit, automotive liability insurance, and workers' compensation. Additionally, a maintenance bond for up to 100% of project costs is required upon acceptance of work to guarantee quality for two years.

POSTED

about 8 hours ago

DEADLINE

Mechanical Treatment, Mowing and Firebreak Creation Services

Solicitation # IFB-5348-26/AES

Seminole County's Parks and Recreation Department is soliciting bids under IFB-5348-26/AES for mechanical treatment, mowing, and firebreak creation services to support the Natural Lands Program. The primary objective is the preservation and management of natural areas to enhance biodiversity, wildlife corridors, and water resources. The scope of work includes forestry mulching, roller chopping, pasture mowing, and the creation and maintenance of mineral soil firebreaks. These services will be assigned on an as-needed basis via work orders and require specialized heavy equipment such as forestry mulching heads, skid-steers, and excavators. Contractors must ensure all equipment is clean of soil and plant debris upon arrival and adhere to strict safety guidelines due to the presence of wildlife and recreational users. The award will be based on the bidder's ability, capacity, professional standing, past performance with governmental entities, and compliance with the Seminole County Purchasing Code. Bidders must be fully licensed and certified in the State of Florida and provide a detailed equipment list and references from the last five years. The contract incorporates various federal and state requirements, including FEMA compliance, the Florida Prompt Payment Act, and Equal Employment Opportunity standards. Submissions are due by December 2, 2026, via the county's e-Procurement Portal. Key administrative requirements include the submission of affidavits regarding the Americans with Disabilities Act and anti-human trafficking, as well as the potential requirement for performance and payment bonds.

Parks and Recreation - Trails and Parks

POSTED

about 8 hours ago

DEADLINE

Turf and Sod Installation

Henry County Board of Commissioners

POSTED

about 9 hours ago

DEADLINE

in about 1 month

SR5/US1 Landscaping Improvements

Solicitation # 26035

The City of St. Augustine is soliciting bids for landscaping improvements within the medians of SR 5/US 1 from Marion Street to Fort Mose Trail. The project scope encompasses selective clearing and grubbing, soil preparation, and the installation of trees, palms, shrubs, groundcover, sod, mulch, and a complete irrigation system. The contractor is responsible for maintenance of traffic, erosion control, and the restoration of disturbed areas in accordance with approved plans and FDOT requirements. The total budgetary ceiling for the project is 613,419.00 dollars, with final FDOT acceptance required by December 31, 2028. Following installation, the contractor must perform either a one-year or two-year landscape establishment and maintenance period based on the option awarded by the City. Bids are due by 2:00 pm on December 10, 2026, and will be awarded to the lowest responsive and responsible respondent. Minimum qualifications include a verifiable history of completing at least three similar projects in the past five years, active SAM.gov registration, and FDOT Landscaping pre-qualification. While a general contractor license is not required for the prime respondent, any directional drilling must be performed by a contractor holding a valid Florida Certified General Contractor or Florida Certified Underground Utility and Excavation Contractor license. The project includes a strict blackout period from November 21, 2027, through January 18, 2028, during which no work is permitted. Financial protections include a required bid guaranty of five percent of the total cost, and for applicable contract values, performance bonds at 125 percent and payment bonds at 100 percent of total compensation.

Community Services

POSTED

about 9 hours ago

DEADLINE

External Works, Drainage, and LandscapingThis subcontract agreement involves the provision of external works, landscaping, and drainage installation for prime contractors operating on Ashfield District Council projects. The scope of work includes executing essential groundwork, installing drainage pipes, and performing comprehensive landscaping and site finishing to ensure a functional drainage system and completed external areas. The opportunity was posted on November 13, 2026, with a response deadline set for December 11, 2026. Classified under NAICS code 561730, the contract focuses on delivering specialized site infrastructure and aesthetic finishing for the council's development initiatives.

Ashfield District Council

POSTED

about 10 hours ago

DEADLINE