Organizations/Contracting offices/REGION 4 CONTRACTING OFFICE

REGION 4 CONTRACTING OFFICE

Historical award activity, vendor concentration and market categories · All available history.

Net obligations$868.50M Select both dates to compare periods

Contract actions5,664 Select both dates to compare periods

Active vendors322 Distinct SAM.gov entities

Competition rate95.7% Share of obligations

Organization hierarchy

Parent and subordinate organizations

Contracting agency

Department

All available history

2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Vendor concentration

322 total

Rank	Vendor	UEI	CAGE	Obligations	Actions	Share
1	KEMRON ENVIRONMENTAL SERVICES, INC.	XANQARYHQFR1	0GZ69	$204.36M	271	23.5%
2	C M C, INC.	CZKDXLMHM8A1	3EP69	$186.01M	478	21.4%
3	TETRA TECH, INC.	W4NLBJHRP7H3	3ZXB0	$67.22M	765	7.7%
4	LEISNOI DIVERSIFIED SERVICES, LLC	G951D1PWEEA5	7S4V8	$55.72M	25	6.4%
5	BLACK & VEATCH SPECIAL PROJECTS CORP	C8L3CMNXPAA1	03JT9	$52.06M	461	6.0%
6	ENVIRONMENTAL RESTORATION, L.L.C.	MHMPN3F73NX3	1FZM9	$45.15M	573	5.2%
7	HYDROGEOLOGIC, INC.	S7Q4GKNGGA81	0UFZ2	$36.69M	181	4.2%
8	EA ENGINEERING, SCIENCE, AND TECHNOLOGY, INC., PBC	LEEMJD9WKDC9	7V713	$24.95M	59	2.9%
9	AECOM TECHNICAL SERVICES, INC.	EPUXNLX5EYC4	4L767	$17.22M	54	2.0%
10	CDM FEDERAL PROGRAMS CORPORATION	DHS5ZJSFCSH9	0JHB8	$16.41M	74	1.9%
11	KEMRON/ARROWHEAD JV, LLC	JQYTHZ2C8L69	7EM40	$15.41M	1	1.8%
12	EQ & CH REMEDIATION	J6FHN6CP5HZ4	482Y7	$12.30M	11	1.4%
13	WATERSHED GEOSYNTHETICS LLC	UL62NFULVKM9	85LR7	$11.67M	1	1.3%
14	VERSAR-ENVIROCON JV	MW18QP5CSBW1	98PK9	$10.73M	38	1.2%
15	SERCO INC.	DKJ1R5ABCN48	022Q2	$8.28M	148	1.0%

Showing 1–15 of 322

Market categories

116 total

Rank	NAICS	Description	Obligations	Actions	Share
1	562910	REMEDIATION SERVICES	$723.28M	3,177	83.3%
2	541620	ENVIRONMENTAL CONSULTING SERVICES	$63.81M	1,024	7.3%
3	237990	OTHER HEAVY AND CIVIL ENGINEERING CONSTRUCTION	$22.10M	8	2.5%
4	541512	COMPUTER SYSTEMS DESIGN SERVICES	$11.19M	133	1.3%
5	541380	TESTING LABORATORIES	$11.04M	228	1.3%
6	334516	ANALYTICAL LABORATORY INSTRUMENT MANUFACTURING	$6.92M	155	0.8%
7	541519	OTHER COMPUTER RELATED SERVICES	$6.37M	66	0.7%
8	541611	ADMINISTRATIVE MANAGEMENT AND GENERAL MANAGEMENT CONSULTING SERVICES	$2.85M	14	0.3%
9	519190	ALL OTHER INFORMATION SERVICES	$2.70M	17	0.3%
10	519120	LIBRARIES AND ARCHIVES	$2.44M	33	0.3%
11	491110	POSTAL SERVICE	$2.32M	22	0.3%
12	561499	ALL OTHER BUSINESS SUPPORT SERVICES	$1.91M	20	0.2%
13	236220	COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION	$992.9K	4	0.1%
14	511210	SOFTWARE PUBLISHERS	$990.3K	15	0.1%
15	541990	ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES	$880.7K	82	0.1%

Showing 1–15 of 116

Market categories

161 total

Rank	PSC	Description	Obligations	Actions	Share
1	F108	ENVIRONMENTAL SYSTEMS PROTECTION- ENVIRONMENTAL REMEDIATION	$568.04M	1,963	65.4%
2	C214	ARCHITECT AND ENGINEERING- GENERAL: MANAGEMENT ENGINEERING	$57.32M	790	6.6%
3	R429	SUPPORT- PROFESSIONAL: EMERGENCY RESPONSE/DISASTER PLANNING/PREPAREDNESS SUPPORT	$55.74M	625	6.4%
4	F021	NATURAL RESOURCES/CONSERVATION- SITE PREPARATION	$55.72M	25	6.4%
5	F103	ENVIRONMENTAL SYSTEMS PROTECTION- WATER QUALITY SUPPORT	$13.90M	32	1.6%
6	9330	PLASTICS FABRICATED MATERIALS	$11.67M	1	1.3%
7	F999	OTHER ENVIRONMENTAL SERVICES	$11.19M	174	1.3%
8	Y1KZ	CONSTRUCTION OF OTHER CONSERVATION AND DEVELOPMENT FACILITIES	$10.43M	7	1.2%
9	R425	SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL	$10.38M	166	1.2%
10	B504	SPECIAL STUDIES/ANALYSIS- CHEMICAL/BIOLOGICAL	$7.76M	116	0.9%
11	F110	ENVIRON SYS PROTECT- DEVELOPMENT OF ENVIRON IMPACT STMTS/ASSESSMENTS, TECH ANALYSIS/ENVIRON AUDITS	$5.71M	11	0.7%
12	D321	IT AND TELECOM- HELP DESK	$5.68M	44	0.7%
13	R605	SUPPORT- ADMINISTRATIVE: LIBRARY	$5.12M	48	0.6%
14	6640	LABORATORY EQUIPMENT AND SUPPLIES	$4.79M	130	0.6%
15	R604	SUPPORT- ADMINISTRATIVE: MAILING/DISTRIBUTION	$4.25M	46	0.5%

Showing 1–15 of 161

Latest activity

5,664 total

Signed	PIID	Vendor	Obligations	NAICS	PSC
Aug 6,2026	68HE0426P0067	SYFT TECHNOLOGIES, INC.UEI VAKRXJ2RWCU7	$51.2K	334516	R499
Aug 5,2026	68HE0419F0107	HYDROGEOLOGIC, INC.UEI S7Q4GKNGGA81	$40.1K	562910	C219
Aug 5,2026	68HE0426F0039	CH2M HILL, INC.UEI NBG7N3TRX7K4	$0	562910	F108
Aug 4,2026	68HE0420F0053	VERSAR-WSP JVUEI P7N6E3A4NEP3	$37.3K	562910	F108
Aug 4,2026	68HE0423F0083	AECOM TECHNICAL SERVICES, INC.UEI EPUXNLX5EYC4	$231.2K	562910	F108
Jul 31,2026	68HE0419F0018	HELIOTECHUEI RP1JLTNSXXR9	$24.3K	562910	B510
Jul 31,2026	68HE0425C0003	NOBIS ENTERPRISES, INC.UEI C8X6GVCEGND3	$95.5K	561499	R604
Jul 31,2026	68HE0426F0093	TETRA TECH, INC.UEI W4NLBJHRP7H3	$1.40M	541620	R429
Jul 30,2026	68HE0422F0086	HYDROGEOLOGIC, INC.UEI S7Q4GKNGGA81	$0	562910	F108
Jul 30,2026	68HE0426F0091	SERCO INC.UEI DKJ1R5ABCN48	$135.0K	541380	B504
Jul 30,2026	68HE0426F0092	SERCO INC.UEI DKJ1R5ABCN48	$165.0K	541380	B504
Jul 30,2026	68HE0426P0072	ENTECH INSTRUMENTS, INC.UEI KG1LX2GE21C3	$51.4K	334516	6640
Jul 29,2026	68HE0422F0082	EQ & CH REMEDIATIONUEI J6FHN6CP5HZ4	$679.5K	562910	F999
Jul 29,2026	68HE0423F0077	HYDROGEOLOGIC, INC.UEI S7Q4GKNGGA81	$32.5K	562910	F108
Jul 28,2026	68HE0421F0071	EA ENGINEERING, SCIENCE, AND TECHNOLOGY, INC., PBCUEI LEEMJD9WKDC9	$47.4K	562910	F108

Showing 1–15 of 5,664