Federal contractor · BROOKLINE, MA

49CHESTNUT LLC

49CHESTNUT LLC received $173.2K in federal contract obligations in FY2026, on 4 awards (+11% vs FY2025). Since FY2017: $1.9M. Its largest customer was National Institutes of Health ($78.8K).

Obligations · FY2026
$173.2K
New awards
4
Sole-source
86%
Single offer
14%
UEI
ECLMHG6B3V55
Small business
Open in the contracts explorerRelationship graph

Spending by fiscal year

Obligations per federal fiscal year (October–September).

  1. 232.5KFY2017
  2. 33.1KFY2018
  3. 90.5KFY2019
  4. 293.5KFY2020
  5. 211.2KFY2021
  6. 361.7KFY2022
  7. 177.3KFY2023
  8. 165.8KFY2024
  9. 155.5KFY2025
  10. 173.2KFY2026

Top buying agencies

Obligations in FY2026.

  1. National Institutes of Health$78.8K45%
    2 awards
  2. Department of the Navy$70.7K41%
    1 awards
  3. Department of Energy$23.8K14%
    1 awards

What was bought · Where the work was performed

Obligations in FY2026.

What was bought

  1. Other equipment & supplies$173.2K100%

Where the work was performed

  1. Norfolk County, MA$78.8K45%
  2. District of Columbia, DC$70.7K41%
  3. Monongalia County, WV$23.8K14%

Integrity signals

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

  • Low competition100%
    US 39% · $173.2K
  • Sole-source awards86%
    US 30% · $149.5K
  • Single-offer competitions14%
    US 8.8% · $23.8K
  • 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. National Institutes of Health$78.8K
    Department of Health and Human Services · 1 awards
  2. Department of the Navy$70.7K
    Department of Defense · 1 awards

Largest awards

  1. TO BUILD A PORTABLE MULTIPHOTON MICROSCOPE FOR DETECTION OF BIOSENSORS ASSOCIATED WITH PARAMETERS OF INTEREST IN LIVING ANIMALS$78.8K
    National Institutes of Health· Norfolk County, MA· Other equipment & supplies· Aug 5, 2026 – Aug 5, 2026· 75N98026P00902
  2. NIAAA: SUPPLIES: MICROSCOPE COMPONENTS$76.7K
    National Institutes of Health· Norfolk County, MA· Other equipment & supplies· Jun 18, 2025 – Nov 20, 2025· 75N94025P00327
  3. PURCHASE 2 QUANTUM CASCADE LASER COMBS$70.7K
    Department of the Navy· District of Columbia, DC· Other equipment & supplies· Dec 30, 2025 – Dec 30, 2025· N0017326P0310
  4. QUANTUM CASCADE LASER (QCL) SYSTEM OPERATING IN THE MID-INFRARED (MID-IR) REGION SUITABLE FOR PLANAR LASER-INDUCED FLUORESCENCE (PLIF) MEASUREMENTS OF CARBON DIOXIDE (CO2) IN COMBUSTION AND REACTING-LOW ENVIRONMENTS. THE SYSTEM MUST INCLUDE ALL NECES$23.8K
    Department of Energy· Monongalia County, WV· Other equipment & supplies· Sep 1, 2026 – Sep 1, 2026· 89243326PFE000986

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

No subawards reported to it in FY2026.

By fiscal year

  • FY2022: $0 paid out · $34.3K received
  • FY2023: $0 paid out · $31.9K 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

No subawards reported to other companies.

Primes that pay it

2 companies · $66.3K reported

  1. AEROVIRONMENT, INC$34.3K
    SIMI VALLEY, CA · 1 subaward · Scientific research and development services
  2. THE AEROSPACE CORPORATION$31.9K
    EL SEGUNDO, CA · 1 subaward · Scientific research and development services

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 7 markets (agency × industry), FY2024–FY2026.

  1. PMT CORP$373.3K−72% in FY2026
    CHANHASSEN, MN · 49% of this company's obligations are in markets they both serveNational Institutes of Health · Navigational, measuring, electromedical, and control instruments manufacturingNational Institutes of Health · Medical equipment and supplies manufacturing
  2. GREINER BIO-ONE NORTH AMERICA, INC$238.2K−100% in FY2026
    MONROE, NC · 40% of this company's obligations are in markets they both serveNational Institutes of Health · Navigational, measuring, electromedical, and control instruments manufacturingNational Institutes of Health · Medical equipment and supplies manufacturing
  3. PHOENIX NMR LLC$187.9K−100% in FY2026
    LOVELAND, CO · 35% of this company's obligations are in markets they both serveNational Institutes of Health · Navigational, measuring, electromedical, and control instruments manufacturing

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 3, 2026, loaded Oct 3, 2026 · FY2024–FY2026.

Source: Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov), data current to Oct 3, 2026, loaded Oct 3, 2026.