Histoserv, Inc.
Germantown, MD
- UEI
- PEQJVJENSYA4
- CAGE
- 3K4S1
- Primary NAICS
- 621511 Medical Laboratories
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- NAICS codes registered in SAM.gov
-
- 621511 Medical Laboratories Primary
- SAM.gov registration date
- Physical address
- 19526 Amaranth Dr, Germantown, MD 20874, USA
- Website
- histoservinc.com
- Founded
- 2000
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Industrials
- Commercial & Professional Services
- Professional Services
- SIC code
- 87 Engineering & Management Services
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Nimh: service: complete neuropathological assessment of aged donors in the hbcc collection: non-severable | Office of Logisitics and Acquisition Operations | $119,907 | |
| NIA: service: neuropathology characterization for the brain atlas project from june 01, 2026 to may 31, 2027:severable | Office of Logisitics and Acquisition Operations | $215,567 | |
| Signatures of aging outcomes | National Institute on Drug Abuse | $29,290 | |
| FY26 UDO initiative laboratory services - characterization of arterial plaque by histology | National Institute on Aging | $10,312 | |
| Histology processing services, BPA call | National Heart Lung and Blood Institute | $15,000 |
About Histoserv, Inc.
Histoserv, Inc., a woman-owned, minority-owned (Subcontinent Asian American) small business based in Germantown, Maryland, provides specialized histology, immunohistochemistry, and pathology laboratory services to the National Institutes of Health and related federal research agencies exclusively as a prime contractor. The company operates as a Subchapter S Corporation under NAICS 621511 (Medical Laboratories) and competes predominantly full-and-open rather than under set-asides, with the exception of one Total Small Business set-aside purchase order from the National Institute on Aging awarded in June 2026.
Histoserv's customer footprint is heavily concentrated within NIH and its subordinate institutes and centers. The top five funding entities account for 55% of recent award count, led by the NIH Office of the Director (36 awards, $286 thousand combined potential value), the NIH Office of Logistics and Acquisition Operations (13 awards, $10.1 million), and the NIH Clinical Center (12 awards, $146 thousand). However, the dollar concentration tells a different story: the NIH Office of Logistics and Acquisition Operations dominates, anchoring a $10 million single-award Blanket Purchase Agreement awarded March 30, 2024, and running through March 31, 2027. The National Institute on Aging is the second-largest customer by dollar value ($637 thousand across 10 awards) and includes a $215 thousand Total Small Business set-aside purchase order for neuropathology characterization of 58 human brain samples for the Brain Atlas Project (June 2026 through May 2027). Representative work across the portfolio includes immunostaining of large human brain sections using the MARIC protocol ($84 thousand, NIA, May 2022), comprehensive immunohistochemistry analysis of 2,184 mice tissue samples ($29 thousand, NIA, May 2025), and histology processing services for the National Heart Lung and Blood Institute ($15 thousand BPA call, April 2025). The company also holds a secondary $40 thousand single-award BPA with the National Institute of Biomedical Imaging and Bioengineering awarded April 2025 through April 2027.
Activity has remained flat at four to five awards annually across 2022 through 2025, with only one award recorded in 2026 to date. The company faces a limited recompete cliff with only one award (the $216 thousand June 2026 NIA Brain Atlas purchase order) due for ultimate completion within the next twenty-four months. Histoserv operates as a 100% prime contractor with no subcontract footprint. All work is performed at the company's Germantown, Maryland facility or at federal research locations including the NIH Clinical Center in Bethesda. The vendor's service portfolio centers on tissue processing (trimming, cassette preparation, paraffin embedding, sectioning), staining methodologies (hematoxylin and eosin, immunohistochemistry), digital image scanning with secure platform storage, and specialized assays such as tunnel assays and biotin-free immunostaining protocols to support biomedical research across the NIH research enterprise.
Quick answers
What is Histoserv, Inc.'s UEI?
Histoserv, Inc.'s Unique Entity ID (UEI) in SAM.gov is PEQJVJENSYA4.
What is Histoserv, Inc.'s CAGE code?
Histoserv, Inc.'s CAGE code is 3K4S1.
What is Histoserv, Inc.'s primary NAICS code?
Histoserv, Inc.'s primary NAICS code is 621511 (Medical Laboratories).
Where is Histoserv, Inc. located?
Histoserv, Inc.'s physical address in SAM.gov is 19526 Amaranth Dr, Germantown, MD 20874, USA.
Is Histoserv, Inc. registered in SAM.gov?
Yes. Histoserv, Inc.'s SAM.gov registration is active through January 28, 2027.
What is Histoserv, Inc.'s most recent federal award?
Histoserv, Inc.'s most recent federal contract award is Nimh: service: complete neuropathological assessment of aged donors in the hbcc collection: non-severable (75N98026P01870), from Office of Logisitics and Acquisition Operations, on September 25, 2026.
On GovTribe
See Histoserv, Inc.'s full federal record
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