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 3,981–4,000 of 15,627 contractors

RE TECH ADVISORS, LLC
DBA RE TECH ADVISORS INC
UEIKLP4CATKLJE6CAGE81ZA5
Location: MCLEAN, VA
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: $29.2M ($29,190,988)
ISLAND CONTRACTING, INC.
UEICYWEA6PLVJ68CAGE5NEQ1
Location: BELTSVILLE, 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: $29.1M ($29,066,268)
CHLOETA HOLDINGS LLC
DBA CHLOETA
UEIMVB3NM8N39L5CAGE5K6E2
Location: OKLAHOMA CITY, OKSocio-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: $29M ($29,011,025)
HYDRA ENGINEERING & CONSTRUCTION, LLC
UEIHVA8QVX8YST1CAGE514K1
Location: CRAWFORDVILLE, FLSocio-economic status (SAM.gov): SBWOSB
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: $29M ($28,997,574)
ALLIANCE GLOBAL GROUP LLC
UEIGYDVMMS8YCQ3CAGE6UUW6
Location: PIKESVILLE, MD
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: $28.7M ($28,712,126)
T2S, LLC
DBA T2S LLC
UEICVC3NGFWAAJ3CAGE62M45
Location: BELCAMP, MD
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: $28.7M ($28,650,522)
UNIVERSITY OF NEW MEXICO
UEIF6XLTRUQJEN4CAGE6T086
Location: ALBUQUERQUE, NM
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: $28.6M ($28,602,508)
BRISTOL-BB&E JV LLC
UEIE1ZFQT3AR5G8CAGE9ZND8
Location: ANCHORAGE, AKSocio-economic status (SAM.gov): SBSDB8(a)ANC
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: $28.5M ($28,519,571)
HILL INTERNATIONAL, INC.
UEIGP4MCJV4RNK4CAGE0DAG6
Location: WASHINGTON, DC
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: $28.4M ($28,419,541)
INNOVATE! INC
UEIMCCNGRDG5431CAGE37CN2
Location: ALEXANDRIA, VASocio-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: $28.1M ($28,058,159)
LOGISTICS SUPPORT INCORPORATED
UEIG81DDNWBUUB1CAGE1XBU0
Location: BOWIE, 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: $28M ($27,986,159)
CROSSBOUNDARY LLC
UEIH7URH2WEZLT3CAGE6WPW3
Location: WASHINGTON, DCSocio-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 activeObligated, 36 mo: $28M ($27,960,404)
TETRA TECH, INC.
DBA TETRA TECH
UEIDSBKJQNLK7N5CAGE39XX4
Location: COLLINSVILLE, IL
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: $27.9M ($27,909,015)
STRATEGIC INNOVATIVE SOLUTIONS LLC
DBA SIS
UEIFAFSLWW6MJN4CAGE5W3U5
Location: CLEARWATER, FLSocio-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: $27.9M ($27,864,703)
KD ANALYTICAL CONSULTING LLC
UEIHFPKF1FE2F28CAGE4CXM3
Location: LEXINGTON, KYSocio-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 activeObligated, 36 mo: $27.8M ($27,807,659)
CCCS INTERNATIONAL LLC
UEIEFB3W9YPRTE1CAGE7MAD8
Location: NORTH CHARLESTON, SCSocio-economic status (SAM.gov): SBSDB
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: $27.7M ($27,711,945)
TANTARA ASSOCIATES CORP
UEINEXBSWDG9MF1CAGE1UPA4
Location: MARLBOROUGH, MA
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: $27.6M ($27,649,785)
IPOWER LLC
UEIDM5YK2GE4CG5CAGE1TVV3
Location: RESTON, VA
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: $27.6M ($27,584,637)
WHITETAIL ENVIRONMENTAL, LLC
UEIHW2JSGK9M8K8CAGE695K7
Location: JAY, OK
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: $27.5M ($27,520,120)
MODERNO INC
UEIESV8ZJWM4815CAGE7C6U4
Location: MURRIETA, CASocio-economic status (SAM.gov): SBSDBVOSBSDVOSB
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: $27.5M ($27,452,981)

Contractors listing NAICS 541620, page 200 of 782
Company	This code	Compliance	SAM.gov	Obligated, 36 mo
RE TECH ADVISORS, LLC DBA RE TECH ADVISORS INC UEIKLP4CATKLJE6CAGE81ZA5 Location: MCLEAN, VA	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	$29.2M ($29,190,988)
ISLAND CONTRACTING, INC. UEICYWEA6PLVJ68CAGE5NEQ1 Location: BELTSVILLE, 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	$29.1M ($29,066,268)
CHLOETA HOLDINGS LLC DBA CHLOETA UEIMVB3NM8N39L5CAGE5K6E2 Location: OKLAHOMA CITY, OKSocio-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	$29M ($29,011,025)
HYDRA ENGINEERING & CONSTRUCTION, LLC UEIHVA8QVX8YST1CAGE514K1 Location: CRAWFORDVILLE, FLSocio-economic status (SAM.gov): SBWOSB	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	$29M ($28,997,574)
ALLIANCE GLOBAL GROUP LLC UEIGYDVMMS8YCQ3CAGE6UUW6 Location: PIKESVILLE, MD	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	$28.7M ($28,712,126)
T2S, LLC DBA T2S LLC UEICVC3NGFWAAJ3CAGE62M45 Location: BELCAMP, MD	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	$28.7M ($28,650,522)
UNIVERSITY OF NEW MEXICO UEIF6XLTRUQJEN4CAGE6T086 Location: ALBUQUERQUE, NM	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	$28.6M ($28,602,508)
BRISTOL-BB&E JV LLC UEIE1ZFQT3AR5G8CAGE9ZND8 Location: ANCHORAGE, AKSocio-economic status (SAM.gov): SBSDB8(a)ANC	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	$28.5M ($28,519,571)
HILL INTERNATIONAL, INC. UEIGP4MCJV4RNK4CAGE0DAG6 Location: WASHINGTON, DC	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	$28.4M ($28,419,541)
INNOVATE! INC UEIMCCNGRDG5431CAGE37CN2 Location: ALEXANDRIA, VASocio-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	$28.1M ($28,058,159)
LOGISTICS SUPPORT INCORPORATED UEIG81DDNWBUUB1CAGE1XBU0 Location: BOWIE, 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	$28M ($27,986,159)
CROSSBOUNDARY LLC UEIH7URH2WEZLT3CAGE6WPW3 Location: WASHINGTON, DCSocio-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 active	$28M ($27,960,404)
TETRA TECH, INC. DBA TETRA TECH UEIDSBKJQNLK7N5CAGE39XX4 Location: COLLINSVILLE, IL	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	$27.9M ($27,909,015)
STRATEGIC INNOVATIVE SOLUTIONS LLC DBA SIS UEIFAFSLWW6MJN4CAGE5W3U5 Location: CLEARWATER, FLSocio-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	$27.9M ($27,864,703)
KD ANALYTICAL CONSULTING LLC UEIHFPKF1FE2F28CAGE4CXM3 Location: LEXINGTON, KYSocio-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 active	$27.8M ($27,807,659)
CCCS INTERNATIONAL LLC UEIEFB3W9YPRTE1CAGE7MAD8 Location: NORTH CHARLESTON, SCSocio-economic status (SAM.gov): SBSDB	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	$27.7M ($27,711,945)
TANTARA ASSOCIATES CORP UEINEXBSWDG9MF1CAGE1UPA4 Location: MARLBOROUGH, MA	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	$27.6M ($27,649,785)
IPOWER LLC UEIDM5YK2GE4CG5CAGE1TVV3 Location: RESTON, VA	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	$27.6M ($27,584,637)
WHITETAIL ENVIRONMENTAL, LLC UEIHW2JSGK9M8K8CAGE695K7 Location: JAY, OK	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	$27.5M ($27,520,120)
MODERNO INC UEIESV8ZJWM4815CAGE7C6U4 Location: MURRIETA, CASocio-economic status (SAM.gov): SBSDBVOSBSDVOSB	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	$27.5M ($27,452,981)

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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