NAICS 541620 · Professional, Scientific, and Technical Services

Environmental Consulting Services

15,643 active contractors list NAICS 541620 (Environmental Consulting Services) in SAM.gov; 9,860 are small under its SBA size standard and 3,341 list it as their primary NAICS.

Learn more about NAICS size standards

Search with filters Small businesses only

Active contractors: 15,643
Small under 541620SBA size standard for this code: 9,860
Primary NAICSTheir main line of business: 3,341
Hidden registrationsExcluded, expired or inactive: 232

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

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

Showing 2,221–2,240 of 15,643 contractors

MCDONALD DATA SCIENCES, LLC
UEINMF4JC7FASH3CAGE8QCP1
Location: LARAMIE, WYSocio-economic status (SAM.gov): SB
Primary 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: None on file
MCGEHEE ENGINEERING CORP
UEIZK9PQM5WL9P9CAGE7Q6X9
Location: JASPER, AL
Primary 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: None on file
MCGOWAN WELL WATER COMPLIANCE MANAGEMENT LLC
UEIG4L1EUV67BW4CAGE325J6
Location: RINGWOOD, NJ
Primary 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: None on file
MCGRAW JODI M
DBA JODI MCGRAW CONSULTING
UEIVBLHT7KHQFG4CAGE4NYP4
Location: CORRALITOS, CASocio-economic status (SAM.gov): SBWOSB
Primary 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: None on file
MCGUINESS JOSEPH H
DBA MCGUINESS CONSULTING
UEIXCJSE22KZHE3CAGE92UQ3
Location: ERWIN, TNSocio-economic status (SAM.gov): SB
Primary 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: None on file
MCLELLAND JERRY A
UEIJKWXQMQNYLW9CAGE625W3
Location: HATTIESBURG, MSSocio-economic status (SAM.gov): SBVOSB
Primary 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: None on file
MCRAE GROUP LLC
UEIF8YYWQZSLU11CAGE9U8C5
Location: EL PASO, TXSocio-economic status (SAM.gov): SB
Primary 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: None on file
MCS SERVICES INC
UEIPGD3YFXL69D1CAGE6J0W3
Location: PETERSBURG, VASocio-economic status (SAM.gov): SBHUBZone
Primary 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: None on file
MDM HISTORICAL CONSULTANTS, INC
DBA MDM HISTORICAL CONSULTANTS
UEIR7T6BSWPBZ63CAGE9TEZ6
Location: DURHAM, NCSocio-economic status (SAM.gov): SBWOSB
Primary 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: None on file
MEDINA ENVIRONMENTAL CONSULTING & SOLUTIONS, LLC
UEIDDT8C8UEJRA5CAGE9S3R1
Location: CLINTON, MS
Primary 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: None on file
MED SOLUTIONS LLC
UEIHWMHK25TNPX9CAGE8MU63
Location: CUMMING, GASocio-economic status (SAM.gov): SB
Primary 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: None on file
MEGANNUM, INC.
DBA MEGANNUM INC
UEIPR8HZMAG3AJ1CAGE685W8
Location: ARVADA, COSocio-economic status (SAM.gov): SB
Primary 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: None on file
MELA ENVIRONMENTAL SERVICES, LLC
UEILZP2SA884QC5CAGE9S9Z4
Location: MONTROSE, CO
Primary 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: None on file
MELCHING WATER SOLUTIONS LLC
UEIY3SYSD1KSMM7CAGE3BWY4
Location: GREENFIELD, WISocio-economic status (SAM.gov): SB
Primary 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: None on file
MEMPHIS & SHELBY COUNTY LEAD SAFE COLLABORATIVE INC
UEITGL8LS3EXHH3CAGE89K92
Location: MEMPHIS, TNSocio-economic status (SAM.gov): SB
Primary 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: None on file
MER CONSULTANTS LLC
UEIL5C1N471P3K9CAGE735F2
Location: STUART, FLSocio-economic status (SAM.gov): SB
Primary 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: None on file
MERELLO MARINE CONSULTING, LLC.
DBA MERELLO MARINE CONSULTING LLC
UEIH25EC2VC6U76CAGE96UB0
Location: NEW PORT RICHEY, FLSocio-economic status (SAM.gov): SB
Primary 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: None on file
MERIDIAN ENVIRONMENTAL, INC.
UEIV5HTS5MC2GS5CAGE3ERN4
Location: SEATTLE, WA
Primary 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: None on file
MERKEL & ASSOCIATES, INC.
DBA MERKEL & ASSOCIATES INC
UEIYMUZGMEL9MR6CAGE1BWN5
Location: SAN DIEGO, CA
Primary 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: None on file
MESA BIOLOGICAL LLC
UEIFP5KNNEUVAK1CAGE8H7E1
Location: BAKERSFIELD, CA
Primary 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: None on file

Contractors listing NAICS 541620, page 112 of 783
Company	This code	Compliance	SAM.gov	Obligated, 36 mo
MCDONALD DATA SCIENCES, LLC UEINMF4JC7FASH3CAGE8QCP1 Location: LARAMIE, WYSocio-economic status (SAM.gov): SB	Primary 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	None on file
MCGEHEE ENGINEERING CORP UEIZK9PQM5WL9P9CAGE7Q6X9 Location: JASPER, AL	Primary 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	None on file
MCGOWAN WELL WATER COMPLIANCE MANAGEMENT LLC UEIG4L1EUV67BW4CAGE325J6 Location: RINGWOOD, NJ	Primary 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	None on file
MCGRAW JODI M DBA JODI MCGRAW CONSULTING UEIVBLHT7KHQFG4CAGE4NYP4 Location: CORRALITOS, CASocio-economic status (SAM.gov): SBWOSB	Primary 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	None on file
MCGUINESS JOSEPH H DBA MCGUINESS CONSULTING UEIXCJSE22KZHE3CAGE92UQ3 Location: ERWIN, TNSocio-economic status (SAM.gov): SB	Primary 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	None on file
MCLELLAND JERRY A UEIJKWXQMQNYLW9CAGE625W3 Location: HATTIESBURG, MSSocio-economic status (SAM.gov): SBVOSB	Primary 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	None on file
MCRAE GROUP LLC UEIF8YYWQZSLU11CAGE9U8C5 Location: EL PASO, TXSocio-economic status (SAM.gov): SB	Primary 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	None on file
MCS SERVICES INC UEIPGD3YFXL69D1CAGE6J0W3 Location: PETERSBURG, VASocio-economic status (SAM.gov): SBHUBZone	Primary 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	None on file
MDM HISTORICAL CONSULTANTS, INC DBA MDM HISTORICAL CONSULTANTS UEIR7T6BSWPBZ63CAGE9TEZ6 Location: DURHAM, NCSocio-economic status (SAM.gov): SBWOSB	Primary 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	None on file
MEDINA ENVIRONMENTAL CONSULTING & SOLUTIONS, LLC UEIDDT8C8UEJRA5CAGE9S3R1 Location: CLINTON, MS	Primary 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	None on file
MED SOLUTIONS LLC UEIHWMHK25TNPX9CAGE8MU63 Location: CUMMING, GASocio-economic status (SAM.gov): SB	Primary 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	None on file
MEGANNUM, INC. DBA MEGANNUM INC UEIPR8HZMAG3AJ1CAGE685W8 Location: ARVADA, COSocio-economic status (SAM.gov): SB	Primary 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	None on file
MELA ENVIRONMENTAL SERVICES, LLC UEILZP2SA884QC5CAGE9S9Z4 Location: MONTROSE, CO	Primary 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	None on file
MELCHING WATER SOLUTIONS LLC UEIY3SYSD1KSMM7CAGE3BWY4 Location: GREENFIELD, WISocio-economic status (SAM.gov): SB	Primary 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	None on file
MEMPHIS & SHELBY COUNTY LEAD SAFE COLLABORATIVE INC UEITGL8LS3EXHH3CAGE89K92 Location: MEMPHIS, TNSocio-economic status (SAM.gov): SB	Primary 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	None on file
MER CONSULTANTS LLC UEIL5C1N471P3K9CAGE735F2 Location: STUART, FLSocio-economic status (SAM.gov): SB	Primary 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	None on file
MERELLO MARINE CONSULTING, LLC. DBA MERELLO MARINE CONSULTING LLC UEIH25EC2VC6U76CAGE96UB0 Location: NEW PORT RICHEY, FLSocio-economic status (SAM.gov): SB	Primary 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	None on file
MERIDIAN ENVIRONMENTAL, INC. UEIV5HTS5MC2GS5CAGE3ERN4 Location: SEATTLE, WA	Primary 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	None on file
MERKEL & ASSOCIATES, INC. DBA MERKEL & ASSOCIATES INC UEIYMUZGMEL9MR6CAGE1BWN5 Location: SAN DIEGO, CA	Primary 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	None on file
MESA BIOLOGICAL LLC UEIFP5KNNEUVAK1CAGE8H7E1 Location: BAKERSFIELD, CA	Primary 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	None on file

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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