Contract award
SOCIAL & SCIENTIFIC SYSTEMS, INC.
THE SISTER STUDY: TASK ORDER 001 - CORE ACTIVITIES
- PIID
- 75N96018F00001
- Award key
- CONT_AWD_75N96018F00001_7529_75N96018D00005_7529
- Recipient UEI
- XKMBEM2BTLK3
- Parent award
- CONT_IDV_75N96018D00005_7529
- Source as of
- —
Current award value
$61,994,3343
Obligated to date
$61,994,3342
Potential with options
$61,994,3343
- Awarding agency
- Department of Health and Human ServicesNational Institutes of Health
- Contractor
- SOCIAL & SCIENTIFIC SYSTEMS, INC.
- Place of performance
- Durham, North Carolina
- Set-aside
- None
- Pricing
- Cost Plus Fixed Fee
- Competition
- Full and Open Competition after Exclusion of Sources
- Period of performance
- Aug 22, 2018 — Aug 22, 2027Through Aug 22, 2027 if all options are exercised
- Benchmark category
- Unclassified
Transaction history
Every action recorded against this award, in the order the government reported them.
| Mod | Action date | Reason | Obligation | Value at action |
|---|---|---|---|---|
| 0 | Aug 22, 2018 | Initial award | $4,000,000.00 | $61,994,334.27 |
| P00001 | Sep 25, 2018 | C | $1,996,738.00 | $61,994,334.27 |
| P00002 | Jun 24, 2019 | C | $890,913.00 | $61,994,334.27 |
| P00003 | Aug 21, 2019 | G | $4,500,000.00 | $61,994,334.27 |
| P00004 | Sep 19, 2019 | C | $870,974.00 | $61,994,334.27 |
| P00005 | Jun 25, 2020 | C | $1,022,230.00 | $61,994,334.27 |
| P00006 | Aug 18, 2020 | G | $5,000,000.00 | $61,994,334.27 |
| P00007 | Sep 16, 2020 | C | $1,396,428.00 | $61,994,334.27 |
| P00008 | Aug 13, 2021 | C | $470,000.00 | $61,994,334.27 |
| P00009 | Aug 23, 2021 | G | $7,240,041.00 | $61,994,334.27 |
| P00010 | Aug 22, 2022 | G | $6,711,758.00 | $61,994,334.27 |
| P00011 | Sep 20, 2022 | A | $628,209.00 | $61,994,334.27 |
| P00012 | Mar 15, 2023 | M | $0.00 | $61,994,334.27 |
| P00013 | Aug 18, 2023 | B | $7,356,813.00 | $61,994,334.27 |
| P00014 | Sep 28, 2023 | M | $0.00 | $61,994,334.27 |
| P00015 | Jul 24, 2024 | C | -$261,554.85 | $61,994,334.27 |
| P00016 | Aug 15, 2024 | G | $7,000,000.00 | $61,994,334.27 |
| P00017 | Jul 14, 2025 | C | $283,493.00 | $61,994,334.27 |
| P00018 | Aug 22, 2025 | G | $5,590,000.00 | $61,994,334.27 |
| P00019 | Sep 23, 2025 | C | $1,572,871.00 | $61,994,334.27 |
| P00020 | Aug 12, 2026 | C | -$24,578.88 | $61,994,334.27 |
| P00021 | Aug 20, 2026 | G | $5,750,000.00 | $61,994,334.27 |
Provenance
Which source record produced each displayed rollup figure.
| Field | Source | File | Retrieved | Parser | Artifact hash |
|---|---|---|---|---|---|
| awarding_agency_id | USAspending.gov | — | Aug 22, 2026 | usaspending_contract_csv@2026.08.2 | b479013ce363 |
| contractor_id | USAspending.gov | — | Aug 22, 2026 | usaspending_contract_csv@2026.08.2 | b479013ce363 |
| current_award_value | USAspending.gov | — | Aug 22, 2026 | usaspending_contract_csv@2026.08.2 | b479013ce363 |
| naics_code | USAspending.gov | — | Aug 22, 2026 | usaspending_contract_csv@2026.08.2 | b479013ce363 |
| potential_award_value | USAspending.gov | — | Aug 22, 2026 | usaspending_contract_csv@2026.08.2 | b479013ce363 |
| psc_code | USAspending.gov | — | Aug 22, 2026 | usaspending_contract_csv@2026.08.2 | b479013ce363 |
| total_obligated | USAspending.gov | — | Aug 22, 2026 | usaspending_contract_csv@2026.08.2 | b479013ce363 |
Sources and method
Figures on this page are computed from public federal award records. Numbers are never estimated or generated; where a figure is withheld, the reason is stated rather than filled in.
This page is a record of one federal award, assembled from the transactions the government published against it. Note 1 describes where the rollup came from. Values are award values, not unit prices.
- 1Rollup values derive from 22 transaction records parsed from USAspending.gov, retrieved Aug 22, 2026 by transform awards@2026.08.1.
- 2Obligations are the sum of signed federal action obligations across all transactions; deobligations are negative and remain negative.
- 3Current and potential award values are taken from the latest reported action, not summed across modifications.