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Contract #: 47QTCA21D0031 47QTCK18D0031 GS00Q14OADU124 GS00Q14OADU324 GS00Q14OADU422 GS00Q14OADU612 47QRCA25DU223 Contractor: MANTECH ADVANCED SYSTEMS INTERNATIONAL, INC. Address: 2251 CORPORATE PARK DR HERNDON, VA 20171-4839 Phone: 703-218-6440 E-Mail: jeromy.block@mantech.com Web Address: http://www.mantech.com SAM UEI: JY2BDT2K58Z6 NAICS: 541511 Socio-Economic : Other Than Small Business Current Option Period End Date : Dec 13, 2025 Ultimate Contract End Date : Dec 13, 2040 Govt. POC: Jonathan L. Woodcock 817-850-8373 jonathan.woodcock@gsa.gov Terms & Conditions + Price List Contract Clauses/Exceptions: View the specifics for this contract EPLS : Contractor not found on the Excluded Parties List System Source Title Contract Number Terms & Conditions / Price List Current Option Period End Date Ultimate Contract End Date Category    View Catalog MAS Multiple Award Schedule 47QTCA21D0031 Terms & Conditions + Price List Dec 13, 2025 Dec 13, 2040 511210 518210C 541330ENG 541380 541420 54151 54151ECOM 54151HACS 54151HEAL 54151S 541611 541614 541614SVC 541715 611420 611430 OLM

Additional Contracts held by this contractor. To view more details of a contract, click the Contract Number below.

Source Title Contract Number Terms & Conditions / Price List Current Option Period End Date Ultimate Contract End Date Category    View Catalog ALIAN2 Alliant 2 47QTCK18D0031 Terms & Conditions Jun 30, 2028 ALL 2   OASIS One Acquisition Solution for Integrated Services (OASIS) GS00Q14OADU124   Mar 1, 2025 OASIS POOL1   OASIS One Acquisition Solution for Integrated Services (OASIS) GS00Q14OADU324   Mar 1, 2025 OASIS POOL3   OASIS One Acquisition Solution for Integrated Services (OASIS) GS00Q14OADU422   Mar 1, 2025 OASIS POOL4   OASIS One Acquisition Solution for Integrated Services (OASIS) GS00Q14OADU612   Mar 1, 2025 OASIS POOL5B   OASIS+UR OASIS+ UR 47QRCA25DU223   Dec 16, 2029 60101 60102 60103 60104 60105 60106 60107 60108 60201 60202 60203 60204 60205 60206 60207 60208 60209 60210 60211 60212 60213 60214 60215 60216 60301 60302 60303 60304 60305 60306 60307 60308 60309 60310 60311 60312 60313 60314 60315 60316 60401 60402 60403 60404 60405 60406 60407 60408 60409 60410 60411 60412 60413 60414 60415 60416 60501 60502 60503 60504 60505 60506 60507 60508 60509 60510 60511 60512 60513 60514 60515 60516 60517 60801 60802 60803 60804 60805 60806 60807 60808 60809 60810 60811 60812 60813 60814 60815 60816 60817 60818 60819