| | DDC 4C, LLC | — | IDC | $3,788,228 | ENVIRONMENTAL PROTECTION AGENCY | ENVIRONMENTAL PROTECTION AGENCY | — | 541620Environmental Consulting Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Oct 17, 2025 | Oct 17, 2025 | — |
| | FORENSIC GENEALOGY SERVICES, LLC | PHASE I GENEALOGY SERVICES | IDC | $1,625,000 | DEPT OF THE NAVY | DEPT OF THE NAVY | SBA | 541990All Other Professional, Scientific, and Technical Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Jun 21, 2022 | Jul 11, 2022 | Jul 10, 2027 |
| | MATTHEW C GODFREY LLC | HISTORICAL SUPPORT SERVICES | BPA | $7,000,000 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541990All Other Professional, Scientific, and Technical Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Aug 26, 2021 | Aug 26, 2021 | Aug 23, 2026 |
| | HISTORY ASSOCIATES INCORPORATED | HISTORICAL SUPPORT SERVICES | BPA | $7,000,000 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541990All Other Professional, Scientific, and Technical Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Aug 24, 2021 | Aug 24, 2021 | Aug 23, 2026 |
| | HISTORICAL RESEARCH ASSOCIATES, INC. | — | BPA | $7,000,000 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541990All Other Professional, Scientific, and Technical Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Aug 24, 2021 | Aug 24, 2021 | — |
| | WESTERN CULTURAL INC | — | IDC | $15,000 | FOREST SERVICE | FOREST SERVICE | SBA | 712120Historical Sites | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | May 28, 2020 | May 28, 2020 | — |
| | ETHNOTECH LLC | REGIONAL HERITAGE IDIQ | IDC | $10,000 | FOREST SERVICE | FOREST SERVICE | SBA | 712120Historical Sites | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | May 28, 2020 | May 28, 2020 | May 31, 2025 |
| | ROW 10 HISTORIC PRESERVATION SOLUTIONS LLC | — | BPA | $250,000 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541310Architectural Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Jun 27, 2018 | Jun 8, 2018 | — |
| | SOUTHEASTERN ARCHAEOLOGICAL RESEARCH, LLC | IGF::OT::IGF PROFESSIONAL HISTORICAL SUPPORT SERVICES INDEFINITE DELIVERY-INDEFINITE QUANTITY MATOC | IDC | $2,000,000 | DEPT OF THE ARMY | DEPT OF THE ARMY | SBA | 541990All Other Professional, Scientific, and Technical Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Sep 1, 2017 | Sep 1, 2017 | Aug 30, 2020 |
| | HISTORICAL RESEARCH ASSOCIATES, INC. | IGF::OT::IGF PROFESSIONAL HISTORICAL SUPPORT SERVICES INDEFINITE DELIVERY-INDEFINITE QUANTITY MATOC | IDC | $2,000,000 | DEPT OF THE ARMY | DEPT OF THE ARMY | SBA | 541990All Other Professional, Scientific, and Technical Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Sep 1, 2017 | Sep 1, 2017 | — |
| | HISTORY ASSOCIATES INCORPORATED | IGF::OT::IGF PROFESSIONAL HISTORICAL SUPPORT SERVICES INDEFINITE DELIVERY-INDEFINITE QUANTITY MATOC | IDC | $2,000,000 | DEPT OF THE ARMY | DEPT OF THE ARMY | SBA | 541990All Other Professional, Scientific, and Technical Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Sep 1, 2017 | Sep 1, 2017 | — |
| | FORENSIC GENEALOGY SERVICES, LLC | IGF::OT::IGF
GENEALOGY RESEARCH SERVICES-PHASE I | IDC | $949,000 | DEPT OF THE NAVY | DEPT OF THE NAVY | SBA | 561611Investigation and Personal Background Check Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Jul 10, 2017 | Jul 10, 2017 | Jan 10, 2023 |
| | CONFEDERATED TRIBES OF COLVILLE RESERVATION | IGF::OT::IGF
BASE YEAR: CJD HISTORIC PROPERTY MGMT | IDC | $990,000 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 921150American Indian and Alaska Native Tribal Governments | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Jul 19, 2016 | Jul 19, 2016 | — |
| | DMG FOUR CORNERS RESEARCH, INC | IGF::CT::IGF | IDC | $7,910 | FOREST SERVICE | FOREST SERVICE | — | 541720Research and Development in the Social Sciences and Humanities | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Jul 9, 2014 | Jul 9, 2014 | Jul 8, 2015 |
| | ENVIROSYSTEMS MANAGEMENT INC | IGF::CT::IGF | IDC | $74,053 | FOREST SERVICE | FOREST SERVICE | — | 541720Research and Development in the Social Sciences and Humanities | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Jul 9, 2014 | Jul 9, 2014 | Dec 11, 2015 |
| | FORENSIC GENEALOGY SERVICES, LLC | — | IDC | $0 | DEPT OF THE NAVY | DEPT OF THE NAVY | SBA | 561611Investigation and Personal Background Check Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Jun 11, 2014 | Jun 11, 2014 | — |
| | STATISTICAL RESEARCH INC | — | BPA | $0 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541620Environmental Consulting Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Feb 2, 2012 | Feb 2, 2012 | — |
| | APPLIED EARTHWORKS, INC. | APPLIED EARTHWORKS - ARCHAEOLOGICAL ASSESSMENT OF PSHA W/AML | BPA | $0 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541620Environmental Consulting Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Feb 2, 2012 | Feb 2, 2012 | Jan 2, 2017 |
| | ENVIRONMENTAL SCIENCE ASSOCIATES | — | BPA | $0 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541620Environmental Consulting Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Feb 2, 2012 | Feb 2, 2012 | — |
| | ASM AFFILIATES INC | — | BPA | $0 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541620Environmental Consulting Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Feb 2, 2012 | Feb 2, 2012 | — |
| | LOGAN SIMPSON DESIGN INC. | LOGAN SIMPSON DESIGN - ARCHAEOLOGICAL ASSESSMENT OF PSHA W/AML | BPA | $0 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541620Environmental Consulting Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Feb 2, 2012 | Feb 2, 2012 | Jan 31, 2017 |
| | AECOM C&E, INC. | — | BPA | $0 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 541620Environmental Consulting Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Feb 2, 2012 | Feb 2, 2012 | — |
| | NATIVE-X, INC. ARCHAEOLOGICAL SERVICES | — | IDC | $0 | FOREST SERVICE | FOREST SERVICE | — | 712120Historical Sites | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Jan 17, 2012 | Jan 17, 2012 | — |
| | CONFEDERATED TRIBES OF COLVILLE RESERVATION | 60412-CJD FY12 HISTORIC PROP MANAG COMP PN 351937 | IDC | $980,256 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 921150American Indian and Alaska Native Tribal Governments | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Nov 8, 2011 | Nov 1, 2011 | May 7, 2015 |
| | SOUTHEASTERN ARCHAEOLOGICAL RESEARCH, LLC | MARINE AND TERRESTRIAL HISTORIC PROPERTIES INVESTIGATIONS | IDC | $3,515,756 | DEPT OF THE ARMY | DEPT OF THE ARMY | 8AN | 541990All Other Professional, Scientific, and Technical Services | B521SPECIAL STUDIES/ANALYSIS- HISTORICAL | Jul 26, 2011 | Jul 26, 2011 | Jul 25, 2015 |