NAICS 541620 · Professional, Scientific, and Technical Services

Environmental Consulting Services

15,627 active contractors list NAICS 541620 (Environmental Consulting Services) in SAM.gov; 9,859 are small under its SBA size standard and 3,335 list it as their primary NAICS.

Learn more about NAICS size standards

Search with filters Small businesses only

Active contractors: 15,627
Small under 541620SBA size standard for this code: 9,859
Primary NAICSTheir main line of business: 3,335
Hidden registrationsExcluded, expired or inactive: 248

Work this industry

Live RFPs in this NAICS
Open SAM.gov solicitations coded 541620, matched to teaming partners.
Expiring awards
Incumbent contracts in 541620 heading to recompete in the next 18 months.
Small under 541620
Partners SAM.gov lists as small under this code: the size check a set-aside uses.

Size is NAICS-specific: a firm can be small under one code and other than small under another. Learn more about small business set-asides

Contractors listing NAICS 541620

Claimed profiles come first by membership level, then companies with 541620 as their primary NAICS, then federal obligations over the last 36 months. SPRS shows the highest blind bracket met, never the score. Learn more about blind SPRS brackets

248 registrations hidden because they are excluded, expired or inactive in SAM.gov. Include them

Showing 3,921–3,940 of 15,627 contractors

BAY WEST-AHTNA JOINT VENTURE, LLC
UEIEMKFAZC6C1T6CAGE89CA8
Location: SAINT PAUL, MN
Secondary NAICSNot listed as small under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM expiringObligated, 36 mo: $36.7M ($36,748,694)
ECONOMETRICA, INC.
UEIEHJKHN7FE8D7CAGE1PZY5
Location: BETHESDA, MDSocio-economic status (SAM.gov): SB
Secondary NAICSSmall under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $36.7M ($36,735,919)
AHTNA ENVIRONMENTAL, INC.
UEIDMNSH8N1PGE6CAGE69BW8
Location: ANCHORAGE, AKSocio-economic status (SAM.gov): SBSDBANC
Secondary NAICSNot listed as small under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $36.7M ($36,723,788)
TEKSOL INTEGRATION GROUP INC
UEIJKBUJRQJ6KV3CAGE6X6F8
Location: MAYAGUEZ, PRSocio-economic status (SAM.gov): SBSDB
Secondary NAICSNot listed as small under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $36.7M ($36,702,550)
SYSTEMS TECHNOLOGY & RESEARCH, INC
UEILYS6LAXVKFJ9CAGE7V757
Location: HUNTSVILLE, ALSocio-economic status (SAM.gov): SBWOSB
Secondary NAICSSmall under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $36.3M ($36,332,769)
EASTERN SHAWNEE - BAY WEST JV, LLC
UEIDVH7JYV4V5M3CAGE12ED2
Location: OVERLAND PARK, KSSocio-economic status (SAM.gov): SBSDB8(a)Tribal
Secondary NAICSSmall under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $36.3M ($36,304,135)
RF LOGISTICS, LLC
DBA RF LOGISTICS LLC
UEIEAB7CP8GSWP3CAGE43LP4
Location: FAIRFAX, VASocio-economic status (SAM.gov): SBVOSBSDVOSB
Secondary NAICSSmall under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $36.2M ($36,218,539)
ATRIAX, P.L.L.C.
UEICKDKNLKHHAY4CAGE1XLU0
Location: HICKORY, NCSocio-economic status (SAM.gov): SBVOSBSDVOSB
Secondary NAICSNot listed as small under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM expiringObligated, 36 mo: $35.9M ($35,850,941)
SUSTAINABLE GROUP/TERRAPHASE ENGINEERING JV LLC
UEIM8AWZELQG948CAGE6RGQ4
Location: MORAGA, CASocio-economic status (SAM.gov): SBVOSBSDVOSB
Secondary NAICSSmall under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $35.8M ($35,768,771)
THOMPSON ENGINEERING, INC.
UEIKK91UMNN6RM8CAGE6Z656
Location: MOBILE, AL
Secondary NAICSNot listed as small under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $35.5M ($35,525,890)
BLH TECHNOLOGIES INC
UEIGGDEMAZJADM7CAGE3M6N9
Location: ROCKVILLE, MDSocio-economic status (SAM.gov): SBVOSBSDVOSB
Secondary NAICSSmall under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $35.5M ($35,516,285)
ENGINEERING & COMPUTER SIMULATIONS, INC.
DBA ENGINEERING & COMPUTER SIMULATIONS INC
UEIKUUJLGCLSJR1CAGE1QK09
Location: ORLANDO, FL
Secondary NAICSNot listed as small under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM expiringObligated, 36 mo: $35.4M ($35,363,796)
MIAMI NATION STRONGHOLD, LLC
DBA MIAMI NATION STRONGHOLD LLC
UEIGCL4GDAELE36CAGE8BYP5
Location: RESTON, VASocio-economic status (SAM.gov): SBSDB8(a)Tribal
Secondary NAICSNot listed as small under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $35.3M ($35,289,767)
NORTHEAST INFRASTRUCTURE LLC
UEIJ64CCTKLLM97CAGE6BGA4
Location: HONESDALE, PASocio-economic status (SAM.gov): SBVOSBSDVOSB
Secondary NAICSSmall under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $35.2M ($35,212,531)
MACROSYS, LLC
UEIL4JMCU766GN6CAGE1LAN9
Location: VIENNA, VASocio-economic status (SAM.gov): SB
Secondary NAICSSmall under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $35.1M ($35,074,900)
GP STRATEGIES CORPORATION
UEIGLRVV6FC6DB3CAGE64825
Location: TROY, MI
Secondary NAICSNot listed as small under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM expiringObligated, 36 mo: $35M ($35,009,897)
ANCILLA TECHNOLOGIES & SERVICES INC
UEIKN7PCNYCN148CAGE7HV80
Location: CLARKSBURG, MDSocio-economic status (SAM.gov): SBVOSBSDVOSB
Secondary NAICSSmall under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $35M ($34,951,022)
OCR GLOBAL INC.
UEIHGEFLGKM6WV4CAGE795M3
Location: CHANTILLY, VASocio-economic status (SAM.gov): SB
Secondary NAICSNot listed as small under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM expiringObligated, 36 mo: $34.9M ($34,888,402)
HIGH DESERT SUPPORT SERVICES, LLC
UEIEX1BCWGYLMV9CAGE6G5C9
Location: BATON ROUGE, LA
Secondary NAICSNot listed as small under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $34.9M ($34,880,279)
NEXIGHT GROUP LLC
UEILBDVN6QLYPY4CAGE67B10
Location: SILVER SPRING, MDSocio-economic status (SAM.gov): SB
Secondary NAICSSmall under 541620
CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9).
No compliance data on file
SAM activeObligated, 36 mo: $34.8M ($34,777,790)

Contractors listing NAICS 541620, page 197 of 782
Company	This code	Compliance	SAM.gov	Obligated, 36 mo
BAY WEST-AHTNA JOINT VENTURE, LLC UEIEMKFAZC6C1T6CAGE89CA8 Location: SAINT PAUL, MN	Secondary NAICSNot listed as small under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM expiring	$36.7M ($36,748,694)
ECONOMETRICA, INC. UEIEHJKHN7FE8D7CAGE1PZY5 Location: BETHESDA, MDSocio-economic status (SAM.gov): SB	Secondary NAICSSmall under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$36.7M ($36,735,919)
AHTNA ENVIRONMENTAL, INC. UEIDMNSH8N1PGE6CAGE69BW8 Location: ANCHORAGE, AKSocio-economic status (SAM.gov): SBSDBANC	Secondary NAICSNot listed as small under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$36.7M ($36,723,788)
TEKSOL INTEGRATION GROUP INC UEIJKBUJRQJ6KV3CAGE6X6F8 Location: MAYAGUEZ, PRSocio-economic status (SAM.gov): SBSDB	Secondary NAICSNot listed as small under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$36.7M ($36,702,550)
SYSTEMS TECHNOLOGY & RESEARCH, INC UEILYS6LAXVKFJ9CAGE7V757 Location: HUNTSVILLE, ALSocio-economic status (SAM.gov): SBWOSB	Secondary NAICSSmall under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$36.3M ($36,332,769)
EASTERN SHAWNEE - BAY WEST JV, LLC UEIDVH7JYV4V5M3CAGE12ED2 Location: OVERLAND PARK, KSSocio-economic status (SAM.gov): SBSDB8(a)Tribal	Secondary NAICSSmall under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$36.3M ($36,304,135)
RF LOGISTICS, LLC DBA RF LOGISTICS LLC UEIEAB7CP8GSWP3CAGE43LP4 Location: FAIRFAX, VASocio-economic status (SAM.gov): SBVOSBSDVOSB	Secondary NAICSSmall under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$36.2M ($36,218,539)
ATRIAX, P.L.L.C. UEICKDKNLKHHAY4CAGE1XLU0 Location: HICKORY, NCSocio-economic status (SAM.gov): SBVOSBSDVOSB	Secondary NAICSNot listed as small under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM expiring	$35.9M ($35,850,941)
SUSTAINABLE GROUP/TERRAPHASE ENGINEERING JV LLC UEIM8AWZELQG948CAGE6RGQ4 Location: MORAGA, CASocio-economic status (SAM.gov): SBVOSBSDVOSB	Secondary NAICSSmall under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$35.8M ($35,768,771)
THOMPSON ENGINEERING, INC. UEIKK91UMNN6RM8CAGE6Z656 Location: MOBILE, AL	Secondary NAICSNot listed as small under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$35.5M ($35,525,890)
BLH TECHNOLOGIES INC UEIGGDEMAZJADM7CAGE3M6N9 Location: ROCKVILLE, MDSocio-economic status (SAM.gov): SBVOSBSDVOSB	Secondary NAICSSmall under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$35.5M ($35,516,285)
ENGINEERING & COMPUTER SIMULATIONS, INC. DBA ENGINEERING & COMPUTER SIMULATIONS INC UEIKUUJLGCLSJR1CAGE1QK09 Location: ORLANDO, FL	Secondary NAICSNot listed as small under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM expiring	$35.4M ($35,363,796)
MIAMI NATION STRONGHOLD, LLC DBA MIAMI NATION STRONGHOLD LLC UEIGCL4GDAELE36CAGE8BYP5 Location: RESTON, VASocio-economic status (SAM.gov): SBSDB8(a)Tribal	Secondary NAICSNot listed as small under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$35.3M ($35,289,767)
NORTHEAST INFRASTRUCTURE LLC UEIJ64CCTKLLM97CAGE6BGA4 Location: HONESDALE, PASocio-economic status (SAM.gov): SBVOSBSDVOSB	Secondary NAICSSmall under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$35.2M ($35,212,531)
MACROSYS, LLC UEIL4JMCU766GN6CAGE1LAN9 Location: VIENNA, VASocio-economic status (SAM.gov): SB	Secondary NAICSSmall under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$35.1M ($35,074,900)
GP STRATEGIES CORPORATION UEIGLRVV6FC6DB3CAGE64825 Location: TROY, MI	Secondary NAICSNot listed as small under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM expiring	$35M ($35,009,897)
ANCILLA TECHNOLOGIES & SERVICES INC UEIKN7PCNYCN148CAGE7HV80 Location: CLARKSBURG, MDSocio-economic status (SAM.gov): SBVOSBSDVOSB	Secondary NAICSSmall under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$35M ($34,951,022)
OCR GLOBAL INC. UEIHGEFLGKM6WV4CAGE795M3 Location: CHANTILLY, VASocio-economic status (SAM.gov): SB	Secondary NAICSNot listed as small under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM expiring	$34.9M ($34,888,402)
HIGH DESERT SUPPORT SERVICES, LLC UEIEX1BCWGYLMV9CAGE6G5C9 Location: BATON ROUGE, LA	Secondary NAICSNot listed as small under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$34.9M ($34,880,279)
NEXIGHT GROUP LLC UEILBDVN6QLYPY4CAGE67B10 Location: SILVER SPRING, MDSocio-economic status (SAM.gov): SB	Secondary NAICSSmall under 541620	CMMCNo CMMCSPRSNoneFacility clearance: visible to paid members. Clearance levels are shown only to paying members; TeamingIndex does not advertise clearances (NISPOM 32 CFR 117.9). No compliance data on file	SAM active	$34.8M ($34,777,790)

Codes these contractors list most often alongside 541620: natural teaming adjacencies.

Environmental Consulting Services

Work this industry

Contractors listing NAICS 541620

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