# Social & Scientific Systems, Inc.

Canonical: https://abierto.us/vendors/social-and-scientific-systems-inc-xkmbem2btlk3

- UEI: XKMBEM2BTLK3
- CAGE: 8S542
- Parent: DLH Holdings Corp.
- Location: Silver Spring, MD
- Awards in window: 93 (300 transactions), $99,101,900 obligated, January 18, 2024 to September 15, 2026

## Awarding agencies

- National Institutes of Health: 81 awards, $84,513,783
- Centers for Disease Control and Prevention: 1 awards, $15,195,633
- Agency for International Development: 1 awards, $4,717,008
- Departmental Offices: 2 awards, $500
- Federal Acquisition Service: 2 awards, $0
- Office of the Assistant Secretary for Administration: 2 awards, -$122,563
- Centers for Medicare and Medicaid Services: 4 awards, -$5,202,461

## Industries

- 541712 Professional, Scientific, and Technical Services: $45,397,333
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology): $27,596,572
- 541519 Other Computer Related Services: $21,570,690
- 541611 Administrative Management and General Management Consulting Services: $6,704,829
- 541990 All Other Professional, Scientific, and Technical Services: $4,278,117
- 541711 Professional, Scientific, and Technical Services: -$262,319
- 541714 Research and Development in Biotechnology (except Nanobiotechnology): -$980,861
- 541720 Research and Development in the Social Sciences and Humanities: -$5,202,461

## Competition

- Full and Open Competition: 89 awards
- Full and Open Competition After Exclusion of Sources: 4 awards

## Solicitations won

- Notice of Intent to Sole Source - Clinical Research Support Services for NIEHS – Contract HHSN273201600002I – Extension of Ordering Period for IDIQ Contract (HHSN273201600002I). https://abierto.us/opportunities/hhsn273201600002i
- Support Services for Epidemiology - IDIQ Ceiling Increase (HHSN273201600003I). https://abierto.us/opportunities/hhsn273201600003i

## Largest awards

- 75N96018F00001 (delivery order): $19,910,230, National Institute of Health Niehs. The Sister Study: Task Order 01 - Core Activities. https://www.usaspending.gov/award/CONT_AWD_75N96018F00001_7529_75N96018D00005_7529/
- 75D30121F12211 (delivery order): $15,195,633, CDC Office of Acquisition Services. Dhap Data Management Services. https://www.usaspending.gov/award/CONT_AWD_75D30121F12211_7523_47QTCA19D00EE_4732/
- 75N96021F00004 (delivery order): $7,467,705, National Institute of Health Niehs. TO4R: Statistical Programming and Analysis. https://www.usaspending.gov/award/CONT_AWD_75N96021F00004_7529_HHSN273201600003I_7529/
- 75N96022F00055 (delivery order): $7,321,196, National Institute of Health Niehs. Statistical Support Services for Niehs in DNTP & Dir. https://www.usaspending.gov/award/CONT_AWD_75N96022F00055_7529_GS00F173CA_4732/
- 75N94022F00050 (delivery order): $6,500,314, National Institutes of Health Nichd. Epidemiology Support Task Order - Base Year Period of Performance, April 17, 2023 - April 16, 2024 and Four Optional Periods. Professional Services. https://www.usaspending.gov/award/CONT_AWD_75N94022F00050_7529_47QTCA19D00EE_4732/
- 75N96018F00002 (delivery order): $6,151,233, National Institute of Health Niehs. Task Order 02 Award - "chronic Disease Validation & Analyses in the Sister Study". https://www.usaspending.gov/award/CONT_AWD_75N96018F00002_7529_75N96018D00005_7529/
- 75N96026F00007 (delivery order): $5,535,293, National Institute of Health Niehs. Clin1: Protocol Development and Scientific Research; Clin2: Biospecimens and Laboratory Science; Clin3-Epidemiology, Biostatistics, and Statistical Programming; Severable Services. https://www.usaspending.gov/award/CONT_AWD_75N96026F00007_7529_HHSN273201600003I_7529/
- 75N96021F00008 (delivery order): $4,798,112, National Institute of Health Niehs. Task Order 8R - Clinical Research Unit (Cru) - Staffing Support Exercise Option Three. https://www.usaspending.gov/award/CONT_AWD_75N96021F00008_7529_HHSN273201600002I_7529/
- AID617C1700001 (definitive contract): $4,717,008, Usaid/Uganda. The Purpose of This Modification Is To: 1) Increase the Total Estimated Cost by $5,847,766 from $37,654,628 to $43,502,394 2) Extend the Period of Performance by 12 Months from May 31, 2024, to May 31, 2025 3) Update Section B.3(A) Esti. https://www.usaspending.gov/award/CONT_AWD_AID617C1700001_7200_-NONE-_-NONE-/
- 75N96021F00002 (delivery order): $2,960,353, National Institute of Health Niehs. Task Order 2R - Data Management and Analytical Support -Exercise Option Period Three. https://www.usaspending.gov/award/CONT_AWD_75N96021F00002_7529_HHSN273201600002I_7529/
- 75N96021F00010 (delivery order): $2,230,838, National Institute of Health Niehs. Task Order 10 - Administrative Correction Modification.. https://www.usaspending.gov/award/CONT_AWD_75N96021F00010_7529_HHSN273201600003I_7529/
- 75N96021F00001 (delivery order): $2,176,602, National Institute of Health Niehs. Task Order 1R - Provide Additional Funding in the Amount of of $136,636 for Option Period Two for a Temporary Reduction in Scope for the Remainder of Option Period 2, Increase for DLH Secure Data Center (Sdc) for It/Is Labor and Infrastructure, Incre. https://www.usaspending.gov/award/CONT_AWD_75N96021F00001_7529_HHSN273201600002I_7529/
- 75N96021F00004 (delivery order): $2,043,679, National Institute of Health Niehs. Task Order 4R - Environmental Autoimmunity Group (Eag) - Study Support - Exercise Option Period Three for Clin1. https://www.usaspending.gov/award/CONT_AWD_75N96021F00004_7529_HHSN273201600002I_7529/
- 75N98026F00008 (delivery order): $1,872,233, National Institutes of Health Olao. This Award Establishes Task Order 8, 75N98026F00008, for Clinical Research Unit (Cru) - Staffing Support Under Contract Hhsn273201600002i. the Task Order Consists of a ONE-YEAR Base Period from September 1, 2026 Through August 31, 2027, and One One-Y. https://www.usaspending.gov/award/CONT_AWD_75N98026F00008_7529_HHSN273201600002I_7529/
- 75N96021F00005 (delivery order): $1,729,584, National Institute of Health Niehs. Task Order 5R - Personalized Environment and Genes Study (Pegs). https://www.usaspending.gov/award/CONT_AWD_75N96021F00005_7529_HHSN273201600002I_7529/
- 75N91023F00001 (delivery order): $1,535,109, NIH NCI. Reb Epidemiology and Dosimetry Studies of Radiation Related Cancers. https://www.usaspending.gov/award/CONT_AWD_75N91023F00001_7529_75N91022D00005_7529/
- 75N96026F00006 (delivery order): $1,500,392, National Institute of Health Niehs. Task Order: Scientific Oversight and Cohort Management: Clin1: Scientific Oversight and Cohort Management; Clin2: Data Warehousing and Security; Severable Services. https://www.usaspending.gov/award/CONT_AWD_75N96026F00006_7529_HHSN273201600003I_7529/
- 75N96021F00001 (delivery order): $1,449,757, National Institute of Health Niehs. Task Order 1R - Administrative Management and Support. https://www.usaspending.gov/award/CONT_AWD_75N96021F00001_7529_HHSN273201600003I_7529/
- 75N98026F00002 (delivery order): $1,419,085, National Institutes of Health Olao. This Award Establishes Task Order 2, 75N98026F00002, for Data Management and Analytical Support Under Contract Hhsn273201600002i. the Task Order Consists of a ONE-YEAR Base Period from September 1, 2026 Through August 31, 2027, and One ONE-YEAR Optio. https://www.usaspending.gov/award/CONT_AWD_75N98026F00002_7529_HHSN273201600002I_7529/
- 75N96025F00025 (delivery order): $1,400,868, National Institute of Health Niehs. Task Order 25 - Incremental Funding Base Period. https://www.usaspending.gov/award/CONT_AWD_75N96025F00025_7529_HHSN273201600003I_7529/
- 75N96021F00003 (delivery order): $1,298,718, National Institute of Health Niehs. TO3R: Specimens. https://www.usaspending.gov/award/CONT_AWD_75N96021F00003_7529_HHSN273201600003I_7529/
- 75N96026F00008 (delivery order): $1,240,267, National Institute of Health Niehs. Environmental Epidemiology and Health Science Research: Task Order - Gulf Study - Cohort Maintenance, Data Management, and Scientific Research. https://www.usaspending.gov/award/CONT_AWD_75N96026F00008_7529_HHSN273201600003I_7529/
- 75N96021F00005 (delivery order): $1,197,557, National Institute of Health Niehs. TO5R - IT Infrastructure Maintenance. https://www.usaspending.gov/award/CONT_AWD_75N96021F00005_7529_HHSN273201600003I_7529/
- 75N98026F00001 (delivery order): $996,534, National Institutes of Health Olao. Award New Task Order 1 to Provide Administration Activities and Support (Core Function Activities) in Accordance with the Task Order Statement of Work. the Base Period of Performance Is September 1, 2026 Through August 31, 2027.. https://www.usaspending.gov/award/CONT_AWD_75N98026F00001_7529_HHSN273201600002I_7529/
- 75N96021F00002 (delivery order): $977,142, National Institute of Health Niehs. TO2R: Clin5 - Hpp-3d Project. https://www.usaspending.gov/award/CONT_AWD_75N96021F00002_7529_HHSN273201600003I_7529/
- 75N98026F00005 (delivery order): $841,323, National Institutes of Health Olao. This Award Establishes Task Order 5, 75N98026F00005, for the Personalized Environment and Genes Study (Pegs) Under Contract Hhsn273201600002i. the Task Order Consists of a ONE-YEAR Base Period from September 1, 2026 Through August 31, 2027, and One O. https://www.usaspending.gov/award/CONT_AWD_75N98026F00005_7529_HHSN273201600002I_7529/
- 75N96024F00024 (delivery order): $811,991, National Institute of Health Niehs. Task Order No.: 75N96024F00024 Research Development - Genr Metabolomics Study Data Support. https://www.usaspending.gov/award/CONT_AWD_75N96024F00024_7529_HHSN273201600003I_7529/
- 75N98026F00004 (delivery order): $724,191, National Institutes of Health Olao. This Award Establishes Task Order 4, 75N98026F00004, for Environmental Autoimmunity Group (Eag) - Study Support Under Contract Hhsn273201600002i. the Task Order Consists of a ONE-YEAR Base Period from September 1, 2026 Through August 31, 2027, and on. https://www.usaspending.gov/award/CONT_AWD_75N98026F00004_7529_HHSN273201600002I_7529/
- 75N96021F00007 (delivery order): $558,539, National Institute of Health Niehs. Task Order 7R - Clinical Monitoring Activities. https://www.usaspending.gov/award/CONT_AWD_75N96021F00007_7529_HHSN273201600002I_7529/
- 75N96021F00003 (delivery order): $540,660, National Institute of Health Niehs. Task Order 3R - Exercise Option Period 3 for Clin1 & Clin2 and Incrementally Fund Each Clin. https://www.usaspending.gov/award/CONT_AWD_75N96021F00003_7529_HHSN273201600002I_7529/
- 75N96023F00001 (delivery order): $362,427, National Institute of Health Niehs. Contract No.: Hhsn273201600002i - to 17 Wha. https://www.usaspending.gov/award/CONT_AWD_75N96023F00001_7529_HHSN273201600002I_7529/
- 75N96021F00006 (delivery order): $348,670, National Institute of Health Niehs. Task Order 6R - Asthma and Respiratory Disease Research (Ardr) Exercise Option 3. https://www.usaspending.gov/award/CONT_AWD_75N96021F00006_7529_HHSN273201600002I_7529/
- 75N98026F00003 (delivery order): $215,098, National Institutes of Health Olao. This Award Establishes Task Order 3, 75N98026F00003, for Protocol Development and Support Under Contract Hhsn273201600002i. the Task Order Consists of a ONE-YEAR Base Period from September 1, 2026 Through August 31, 2027, and One ONE-YEAR Option Peri. https://www.usaspending.gov/award/CONT_AWD_75N98026F00003_7529_HHSN273201600002I_7529/
- 75N98026F00006 (delivery order): $180,029, National Institutes of Health Olao. This Award Establishes Task Order 6, 75N98026F00006, for Asthma and Respiratory Disease Research (Ardr) Under Contract Hhsn273201600002i. the Task Order Consists of a ONE-YEAR Base Period from September 1, 2026 Through August 31, 2027, and One ONE-YE. https://www.usaspending.gov/award/CONT_AWD_75N98026F00006_7529_HHSN273201600002I_7529/
- 75P00121F37003 (delivery order): $149,396, Program Support Center Acq MGMT SVC. Data Transformation II. https://www.usaspending.gov/award/CONT_AWD_75P00121F37003_7570_HHSP233201500040I_7555/
- 75N92024F00001 (delivery order): $31,574, National Institutes of Health Nhlbi. Gene Therapy Resource Program (Gtrp) - Clinical Coordinating Center: Task Area A: Core Administrative Activities. https://www.usaspending.gov/award/CONT_AWD_75N92024F00001_7529_75N92019D00015_7529/
- 140D0424F0274 (delivery order): $500, Ibc Acq SVCS Directorate. HHS Acl IDIQ Minimum Guarantee to. https://www.usaspending.gov/award/CONT_AWD_140D0424F0274_1406_140D0424D0037_1406/
- 75N96022F00020 (delivery order): $0, National Institute of Health Niehs. Task Order 20: Self Transition and Documentation. https://www.usaspending.gov/award/CONT_AWD_75N96022F00020_7529_HHSN273201600003I_7529/
- 75N96023F00021 (delivery order): $0, National Institute of Health Niehs. Invitd II. https://www.usaspending.gov/award/CONT_AWD_75N96023F00021_7529_HHSN273201600003I_7529/
- 75N96023F00022 (delivery order): $0, National Institute of Health Niehs. Task Order 22: Generation R Metabolomics Study. https://www.usaspending.gov/award/CONT_AWD_75N96023F00022_7529_HHSN273201600003I_7529/
- HHSN26800003 (delivery order): $0, National Institutes of Health Nhlbi. GTRP Coordinating Center. https://www.usaspending.gov/award/CONT_AWD_HHSN26800003_7529_HHSN268201200002I_7529/
- HHSN26800004 (delivery order): $0, National Institutes of Health Nhlbi. De-Obligate $189,804.47 from Line Items 1 and 2.. https://www.usaspending.gov/award/CONT_AWD_HHSN26800004_7529_HHSN268201200002I_7529/
- HHSN26800005 (delivery order): $0, National Institutes of Health Nhlbi. De-Obligate Line Item 1 in the Amount of $770,506.66. https://www.usaspending.gov/award/CONT_AWD_HHSN26800005_7529_HHSN268201200002I_7529/
- 140D0424D0037: $0, Ibc Acq SVCS Directorate. Health & Human Services (Hhs) Administration Community Living (Acl) Indefinite-Delivery Indefinite-Quantity (Idiq). https://www.usaspending.gov/award/CONT_IDV_140D0424D0037_1406/
- 47QTCA19D00EE: $0, Gsa/Fas/Pshc/Prof SRVCS Sched-Pss. Federal Supply Schedule Contract. https://www.usaspending.gov/award/CONT_IDV_47QTCA19D00EE_4732/
- 75N91022D00005: $0, NIH NCI. Division of Cancer Epidemiology and Genetics (Dceg) Field and Biospecimen Support Services. https://www.usaspending.gov/award/CONT_IDV_75N91022D00005_7529/
- 75N92019D00015: $0, National Institutes of Health Nhlbi. Gene Therapy Resource Program (Gtrp): Clinical Coordinating Center (Ccc). https://www.usaspending.gov/award/CONT_IDV_75N92019D00015_7529/
- 75N96018D00005: $0, National Institute of Health Niehs. The Sister Study: Environmental and Genetic Risk Factors for Breast Cancer (Idiq). https://www.usaspending.gov/award/CONT_IDV_75N96018D00005_7529/
- GS00F173CA: $0, Gsa/Fas/Pshc/Prof SRVCS Sched-Pss. Federal Supply Schedule Contract. https://www.usaspending.gov/award/CONT_IDV_GS00F173CA_4732/
- HHSN273201600002I: $0, National Institute of Health Niehs. Clinical Research Support Services for Niehs. https://www.usaspending.gov/award/CONT_IDV_HHSN273201600002I_7529/

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Source: USAspending.gov award data, keyed by UEI. Obligations in the window only. Cite https://abierto.us/vendors/social-and-scientific-systems-inc-xkmbem2btlk3.