Federal contractor · CHARLESTON, SC

SERES ENGINEERING & SERVICES LLC

SERES ENGINEERING & SERVICES LLC received $4.1M in federal contract obligations in FY2026, on 14 awards (−51% vs FY2025). Since FY2017: $125.8M. Its largest customer was Department of the Army ($4.1M).

Obligations · FY2026
$4.1M
New awards
14
Sole-source
0.1%
Single offer
0.0%
UEI
NBVMXMMBHYU3
Small businessMinority-owned8(a) program
Open in the contracts explorerRelationship graph

Spending by fiscal year

Obligations per federal fiscal year (October–September).

  1. 6.7MFY2017
  2. 9.6MFY2018
  3. 10.7MFY2019
  4. 18.7MFY2020
  5. 16.7MFY2021
  6. 18MFY2022
  7. 19MFY2023
  8. 13.9MFY2024
  9. 8.3MFY2025
  10. 4.1MFY2026

Top buying agencies

Obligations in FY2026.

  1. Department of the Army$4.1M100%
    6 awards
  2. Department of the Navy$20.3K0.5%
    5 awards
  3. Forest Service$00.0%
    1 awards
  4. Department of the Air Force-$1,4470.0%
    1 awards
  5. Environmental Protection Agency-$21.3K0.0%
    1 awards

What was bought · Where the work was performed

Obligations in FY2026.

What was bought

  1. Facilities & utilities$4.1M100%

Where the work was performed

  1. Richland County, SC$3M75%
  2. Liberty County, GA$971.5K24%
  3. Hampden County, MA$64K1.6%
  4. Duval County, FL$36.6K0.9%
  5. Harford County, MD$23.1K0.6%
  6. Nueces County, TX$9,5530.2%

Integrity signals

Shares of the year's obligations, next to the country's.

  • Low competition0.1%
    US 39% · $2,500
  • Sole-source awards0.1%
    US 30% · $2,500
  • Single-offer competitions0.0%
    US 8.8% · $0
  • Urgency justifications0.0%
    US 5.1% · $0

A signal is a reason to look closer, not evidence of wrongdoing: most sole-source awards are lawful and justified.

Agencies awarding it sole-source contracts

  1. Department of the Navy$20.3K
    Department of Defense · 1 awards

Largest awards

  1. BASE OPERATIONS SUPPORT SERVICES AND ENVIRONMENTAL SERVICES INCLUDING ALL ASPECTS OF, BUT NOT LIMITED TO OPERATIONS, PLANS, REAL ESTATE, ENGINEERING AND ENVIRONMENTAL SUPPORT THROUGHOUT THE 81ST AREA OF RESPONSIBILITY (AOR) TO INCLUDE PUERTO RICO$32.3M
    Department of the Army· Richland County, SC· Facilities & utilities· Oct 15, 2020 – Jan 22, 2026· W9124C21C0002
  2. HAZARDOUS WASTE & HAZARDOUS MATERIAL MANAGEMENT SUPPORT SERVICES$4.9M
    Department of the Army· Liberty County, GA· Facilities & utilities· Mar 21, 2023 – May 12, 2026· W9124M23C0002
  3. PHASE I REMEDIAL INVESTIGATION OF PER- AND POLYFLUOROALKYL SUBSTANCES (PFAS) AT WESTOVER AIR RESERVE BASE (ARB) IN CHICOPEE, MA$3.5M
    Department of the Army· Hampden County, MA· Facilities & utilities· Sep 22, 2022 – Mar 11, 2026· W912WJ22C0016
  4. ON-SITE CHEMICAL ISSUANCE AND WASTE MANAGEMENT.$2.9M
    Environmental Protection Agency· Durham County, NC· Facilities & utilities· Oct 1, 2020 – Dec 1, 2025· 68HERH21C0001
  5. SUPPLEMENTAL OFF-POST RESIDENTIAL WELL SAMPLING OF PER- AND POLYFLUOROALKYL SUBSTANCES (PFAS) AT U.S. ARMY (ACTIVE AND RESERVE) INSTALLATIONS, NATIONWIDE$516.1K
    Department of the Army· Harford County, MD· Facilities & utilities· Sep 28, 2022 – Apr 21, 2026· W912DR22C0047
  6. 24L-FY24 UST/AST WITH UNDERGROUND PIPING TESTING/INSPECTION$445.6K
    Department of the Navy· Beaufort County, SC· Facilities & utilities· Mar 5, 2024 – Apr 17, 2026· N6945024F0331
  7. ETS TANKS INSPECTION & TESTING IDIQ$440K
    Department of the Navy· Duval County, FL· Facilities & utilities· Mar 12, 2025 – Jun 9, 2026· N6945025F0275
  8. ENVIRONMENTAL ENGINEERING -- BELLYTAPE$199.8K
    Department of the Air Force· Houston County, GA· Professional services· Jan 24, 2023 – May 13, 2026· FA857123F0021

Federal grants & assistance received

Grants, loans (counted at their subsidy cost), direct payments and insurance, by fiscal year of the action (USAspending.gov, FABS). Reported apart from contracts and never added to them.

SERES ENGINEERING & SERVICES LLC received $0 in federal assistance in FY2026, on 1 actions (0 new awards), −100% vs FY2025.

Assistance · FY2026
$0
New awards
0
Actions
1
Since FY2025
$117.1K

Assistance by fiscal year

  1. 117.1KFY2025
  2. 0FY2026

Largest awards

  1. THE ROSES FUNDING OPPORTUNITY GOALS ARE: EXECUTE A BALANCED SCIENCE PROGRAM BASED ON DISCIPLINE-SPECIFIC GUIDANCE FROM THE NATIONAL…$117.1K
    43.001 · Science· National Aeronautics and Space Administration· Project grant· Jul 17, 2025 – Apr 7, 2026· 80NSSC25K8003

Source: Federal financial assistance transactions (Financial Assistance Broker Submission) (U.S. Department of the Treasury, USAspending.gov), data current to Oct 6, 2026, loaded Oct 6, 2026 · FY2025–FY2026.

Subawards

Matched by Unique Entity ID: the first-tier subawards this organization reported as a prime recipient, and those primes reported paying it.

As a prime: who it pays · FY2026

No subawards reported as a prime in FY2026.

As a sub-recipient: who pays it · FY2026

  • Sub-contracts: $100.5K (1 subaward)

1 prime

  1. APTIM FEDERAL SERVICES, LLC$100.5K100%
    ALEXANDRIA, VA · 1 subaward

By fiscal year

  • FY2022: $154.1K paid out · $3.3M received
  • FY2023: $0 paid out · $1.3M received
  • FY2026: $0 paid out · $100.5K received

Primes report first-tier subawards of $30,000 or more themselves, and many go unreported (GAO-24-106214). Reporting moved from FSRS to SAM.gov in March 2025 and fewer sub-contracts have been reported since. Amounts are what primes reported; they are never added to prime award totals.

Source: Subawards (first-tier sub-contracts and sub-grants reported under FFATA) (U.S. Department of the Treasury, USAspending.gov (reports filed in SAM.gov, formerly FSRS)), data current to Oct 3, 2026, loaded Oct 3, 2026 · Subawards loaded from FY2021.

Teaming partners

Companies this company reported paying, primes that reported paying it, from FFATA subaward reports.

Companies it pays

2 companies · $154.1K reported

  1. CORNERSTONE DIMENSIONAL STONE LLC$130.4K
    WEST COLUMBIA, SC · 1 subaward · Nonresidential building construction
  2. BENNETT PRESERVATION ENGINEERING, PC$23.7K
    CHARLESTON, SC · 1 subaward · Nonresidential building construction

Primes that pay it

2 companies · $4.7M reported

  1. AECOM TECHNICAL SERVICES, INC.$4.6M
    LOS ANGELES, CA · 2 subawards · Remediation and other waste management services
  2. PERATON ENTERPRISE SOLUTIONS LLC$100.5K
    CHANTILLY, VA · 1 subaward

Primes report first-tier subawards of $30,000 or more themselves, and many go unreported (GAO-24-106214). Reporting moved from FSRS to SAM.gov in March 2025 and fewer sub-contracts have been reported since. Amounts are what primes reported; they are never added to prime award totals.

Source: Subawards (first-tier sub-contracts and sub-grants reported under FFATA) (U.S. Department of the Treasury, USAspending.gov (reports filed in SAM.gov, formerly FSRS)), data current to Oct 3, 2026, loaded Oct 3, 2026 · Subawards loaded from 2021.

Competitors

Companies that win from the same buyers in the same markets: obligations by agency and industry compared over the last three fiscal years.

Compared on 13 markets (agency × industry), FY2024–FY2026.

  1. ANDERSON CONSTRUCTION COMPANY OF FORT GAINES$15.7M−57% in FY2026
    FORT GAINES, GA · 56% of this company's obligations are in markets they both serveArmy · Facilities support services
  2. ERICA LANE ENTERPRISES INC$14.2M−14% in FY2026
    HUNTSVILLE, AL · 54% of this company's obligations are in markets they both serveArmy · Facilities support servicesArmy · Architectural, engineering, and related services
  3. KIRIS, LLC$13.6M−54% in FY2026
    FALLS CHURCH, VA · 52% of this company's obligations are in markets they both serveArmy · Facilities support services

Showing the top 3 of 25 competitors. Open the profile for the full list.

Who sells to the same buyers in the same markets, not who wins against whom on a given contract. Prime contract obligations by the agency and NAICS code of each award; subawards are never added. A company is a family of legal entities, joined by parent UEI or, in part, by an AI reading of names.

Source: Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov), data current to Oct 6, 2026, loaded Oct 6, 2026 · FY2024–FY2026.

Source: Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov), data current to Oct 6, 2026, loaded Oct 6, 2026.