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.

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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 4,261–4,280 of 15,627 contractors

2M RESEARCH SERVICES LLC
UEILT42VRTKZGS9CAGE60YR4
Location: ARLINGTON, TX
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: $10.9M ($10,872,863)
JCTM LLC
DBA JCTM
UEIGSS8TXEFBFH7CAGE7D8K7
Location: CHARLOTTE, NCSocio-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: $10.8M ($10,780,392)
FED SERVE LLC
UEIFFHTNWAU3DM3CAGE7UE87
Location: WEST FARGO, NDSocio-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: $10.8M ($10,778,975)
PARYMON CORP
UEIL5C9GFPC8LY4CAGE8JMP3
Location: GAITHERSBURG, MDSocio-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: $10.8M ($10,751,663)
SWANSON SERVICES LLC
DBA SWANSON SECURITY GUARD & PATROL SERVICES
UEIGDGNK6LE4WZ9CAGE3Y2J6
Location: BLACKSTONE, 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 expiringObligated, 36 mo: $10.7M ($10,664,304)
ABZ INC
UEICZ7QM5M4H5M7CAGE0V0C6
Location: PHILADELPHIA, PA
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: $10.6M ($10,623,564)
ARCWOOD ENVIRONMENTAL, LLC
UEICZ5JM7S5NKD8CAGE1HBR8
Location: INDIANAPOLIS, IN
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: $10.6M ($10,609,651)
WSP USA SOLUTIONS INC.
UEID6A5NBKUKRM6CAGE7NDG5
Location: MORRISTOWN, NJ
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: $10.6M ($10,600,855)
HARP SERVICES LLC
UEIH9WSG4MP4E79CAGE9GTL2
Location: LOS ANGELES, 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: $10.6M ($10,557,781)
ROBERT D. NIEHAUS, INC.
DBA ROBERT D NIEHAUS INC
UEIDCJZCVNNMKW4CAGE0CXJ5
Location: SANTA BARBARA, CA
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: $10.5M ($10,547,515)
RTL NETWORKS, INC.
UEINCWCPYF7J5W9CAGE3B1D5
Location: DENVER, CO
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: $10.5M ($10,514,098)
ARBILL INDUSTRIES INC
UEIC4NCC2SVM6B6CAGE6F088
Location: PHILADELPHIA, PASocio-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: $10.5M ($10,483,474)
NDN OTIE JV, LLC
DBA NDN OTIE JV
UEIF6SXGAWGWEJ1CAGE90MD4
Location: JACKSONVILLE, FLSocio-economic status (SAM.gov): SBSDBWOSB
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: $10.5M ($10,458,429)
HALEY & ALDRICH, INC
UEIJ7H1MTJZVMW5CAGE2R148
Location: BURLINGTON, 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 activeObligated, 36 mo: $10.4M ($10,421,351)
SPECPRO MANAGEMENT SERVICES, LLC
UEIKC5VSGHSB424CAGE4ZBH7
Location: SAN ANTONIO, TXSocio-economic status (SAM.gov): SBANC
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: $10.4M ($10,379,864)
AMALGAMATED SERVICES, INC.
UEID3NYX5JPKME5CAGE63VH2
Location: FRANKFORT, ILSocio-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: $10.4M ($10,377,383)
MITCHELL GROUP, INC. (THE)
DBA MITCHELL GROUP INC
UEIC618PGHAWTC6CAGE1DAK2
Location: WASHINGTON, DCSocio-economic status (SAM.gov): SBVOSB
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: $10.4M ($10,368,087)
TACTICA MANAGEMENT SERVICES LLC
UEIG73GZJERK4V7CAGE8E8U2
Location: CHATTANOOGA, TNSocio-economic status (SAM.gov): SBSDB8(a)
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: $10.4M ($10,366,815)
THE OAK GROUP, INC.
UEIC6D4WGLA4EJ9CAGE02YA4
Location: CAMDEN, NJSocio-economic status (SAM.gov): SBHUBZone
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: $10.3M ($10,315,994)
RESULTS SALES & SERVICE, L.L.C.
UEIHXNZFWKKHG38CAGE7JZL1
Location: CLEARWATER, FLSocio-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: $10.3M ($10,281,925)

Contractors listing NAICS 541620, page 214 of 782
Company	This code	Compliance	SAM.gov	Obligated, 36 mo
2M RESEARCH SERVICES LLC UEILT42VRTKZGS9CAGE60YR4 Location: ARLINGTON, TX	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	$10.9M ($10,872,863)
JCTM LLC DBA JCTM UEIGSS8TXEFBFH7CAGE7D8K7 Location: CHARLOTTE, NCSocio-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	$10.8M ($10,780,392)
FED SERVE LLC UEIFFHTNWAU3DM3CAGE7UE87 Location: WEST FARGO, NDSocio-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	$10.8M ($10,778,975)
PARYMON CORP UEIL5C9GFPC8LY4CAGE8JMP3 Location: GAITHERSBURG, MDSocio-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	$10.8M ($10,751,663)
SWANSON SERVICES LLC DBA SWANSON SECURITY GUARD & PATROL SERVICES UEIGDGNK6LE4WZ9CAGE3Y2J6 Location: BLACKSTONE, 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 expiring	$10.7M ($10,664,304)
ABZ INC UEICZ7QM5M4H5M7CAGE0V0C6 Location: PHILADELPHIA, PA	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	$10.6M ($10,623,564)
ARCWOOD ENVIRONMENTAL, LLC UEICZ5JM7S5NKD8CAGE1HBR8 Location: INDIANAPOLIS, IN	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	$10.6M ($10,609,651)
WSP USA SOLUTIONS INC. UEID6A5NBKUKRM6CAGE7NDG5 Location: MORRISTOWN, NJ	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	$10.6M ($10,600,855)
HARP SERVICES LLC UEIH9WSG4MP4E79CAGE9GTL2 Location: LOS ANGELES, 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	$10.6M ($10,557,781)
ROBERT D. NIEHAUS, INC. DBA ROBERT D NIEHAUS INC UEIDCJZCVNNMKW4CAGE0CXJ5 Location: SANTA BARBARA, CA	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	$10.5M ($10,547,515)
RTL NETWORKS, INC. UEINCWCPYF7J5W9CAGE3B1D5 Location: DENVER, CO	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	$10.5M ($10,514,098)
ARBILL INDUSTRIES INC UEIC4NCC2SVM6B6CAGE6F088 Location: PHILADELPHIA, PASocio-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	$10.5M ($10,483,474)
NDN OTIE JV, LLC DBA NDN OTIE JV UEIF6SXGAWGWEJ1CAGE90MD4 Location: JACKSONVILLE, FLSocio-economic status (SAM.gov): SBSDBWOSB	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	$10.5M ($10,458,429)
HALEY & ALDRICH, INC UEIJ7H1MTJZVMW5CAGE2R148 Location: BURLINGTON, 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 active	$10.4M ($10,421,351)
SPECPRO MANAGEMENT SERVICES, LLC UEIKC5VSGHSB424CAGE4ZBH7 Location: SAN ANTONIO, TXSocio-economic status (SAM.gov): SBANC	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	$10.4M ($10,379,864)
AMALGAMATED SERVICES, INC. UEID3NYX5JPKME5CAGE63VH2 Location: FRANKFORT, ILSocio-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	$10.4M ($10,377,383)
MITCHELL GROUP, INC. (THE) DBA MITCHELL GROUP INC UEIC618PGHAWTC6CAGE1DAK2 Location: WASHINGTON, DCSocio-economic status (SAM.gov): SBVOSB	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	$10.4M ($10,368,087)
TACTICA MANAGEMENT SERVICES LLC UEIG73GZJERK4V7CAGE8E8U2 Location: CHATTANOOGA, TNSocio-economic status (SAM.gov): SBSDB8(a)	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	$10.4M ($10,366,815)
THE OAK GROUP, INC. UEIC6D4WGLA4EJ9CAGE02YA4 Location: CAMDEN, NJSocio-economic status (SAM.gov): SBHUBZone	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	$10.3M ($10,315,994)
RESULTS SALES & SERVICE, L.L.C. UEIHXNZFWKKHG38CAGE7JZL1 Location: CLEARWATER, FLSocio-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	$10.3M ($10,281,925)

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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