Skip to content
  • 6,816 federal solicitations are open right now. How many of them are yours?
  • New solicitations are posted every day. The ones you never saw are the ones you cannot win.
  • Stop checking SAM.gov every morning. Let the contracts that fit your business come to you.
  • Tell Abierto what you sell in one sentence. AI reads every open solicitation for you.
  • Deadlines are short. Hear about a solicitation the day it is posted, not the week it closes.
  • Amendments move deadlines. Watch a solicitation and Abierto tells you when it changes.
  • See which contracts in your field are about to end, and who holds them today.
  • Plans from $39 a month. See your matches before you pay.
See plans
AbiertoGet started
Menu

Special notice

Notice of Intent to Sole Source - Clinical Research Support Services for NIEHS – Contract HHSN273201600002I – Extension of Ordering Period for IDIQ Contract

HHSN273201600002I

National Institutes of Health, National Institutes of Health Nichd. Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology).

127 open like this View on SAM.gov Markdown

Awarded

Social & Scientific Systems, Inc.

$0.00 obligated so far on USAspending

Get the next one like this from National Institutes of Health by email, the day it is posted.Find my opportunities

This one was awarded in 2026

127 like it are open now in research and development in the physical, engineering, and life sciences (except nanotechnology and biotechnology)

All 127 open in research and development in the physical, engineering, and life sciences (except nanotechnology and biotechnology)

Description

As published on SAM.gov.

THIS IS A NOTICE OF INTENT TO AWARD A SOLE SOURCE CONTRACT MODIFICATION WITHOUT PROVIDING FOR FULL AND OPEN COMPETITION.  THIS IS NOT A SOLICITATION OR A REQUEST FOR COMPETITIVE PROPOSALS.

The purpose of this announcement is for the Clinical Research Support Services for NIEHS, within the National Institute of Environmental Health Services (NIEHS), National Institutes of Health, to issue a modification to the existing Indefinite Delivery, Indefinite Quantity (IDIQ) contract number HHSN273201600002I on a sole source basis. The objective of this modification is to extend the ordering period to ensure continuity of mission-critical research while the NIH procurement team continues acquisition planning for the re-competition of these services.

Please see attached notice. 

Attachments

Files listed on SAM.gov. The ones we hold a copy of download from here; the rest open SAM's download, which needs no account.

The contract, on USAspending

Federal procurement data the awarding office reported to FPDS, matched to this solicitation by its number.

Recipient
Social & Scientific Systems, Inc.
UEI
XKMBEM2BTLK3
CAGE
8S542
Vendor location
Silver Spring, MD
Contract
HHSN273201600002I
Obligated
$0.00, potential $100,000,000
Actions
4 between May 14, 2024 and July 23, 2026
Competition
Full and Open Competition, 3 offers received
Set-aside reported
No Set Aside Used.
Described as
Clinical Research Support Services for Niehs
Match
solicitation number HHSN273201600002I was reused as the contract number; same sub-agency 7529 (high confidence)
Record
USAspending award page

Publications

Every notice SAM.gov issued under this solicitation number, oldest first. Each is a separate record on SAM.

  1. March 4, 2026

    Special notice

    Due March 19, 2026 at 4:00 PM EDT. SAM.gov, notice c39347ea7969408ebd4b12d4bdd9c9cc

    1 revisions on SAM
    • March 4, 2026: publish, special notice

Points of contact