NAICS 541380 · Professional, Scientific, and Technical Services

Testing Laboratories and Services

8,987 active contractors list NAICS 541380 (Testing Laboratories and Services) in SAM.gov; 5,538 are small under its SBA size standard and 1,754 list it as their primary NAICS.

Learn more about NAICS size standards

Search with filters Small businesses only

Active contractors: 8,987
Small under 541380SBA size standard for this code: 5,538
Primary NAICSTheir main line of business: 1,754
Hidden registrationsExcluded, expired or inactive: 111

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Live RFPs in this NAICS
Open SAM.gov solicitations coded 541380, matched to teaming partners.
Expiring awards
Incumbent contracts in 541380 heading to recompete in the next 18 months.
Small under 541380
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 541380

Claimed profiles come first by membership level, then companies with 541380 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

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

Showing 8,921–8,940 of 8,987 contractors

WISS, JANNEY, ELSTNER ASSOCIATES, INC
UEILWCAD18KYZT6CAGE36KA8
Location: HOUSTON, TX
Secondary NAICSNot listed as small under 541380
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
WISS, JANNEY, ELSTNER ASSOCIATES, INC
UEIQ1JAVNMRNJM1CAGE36JX8
Location: FALLS CHURCH, VA
Secondary NAICSNot listed as small under 541380
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
WISS, JANNEY, ELSTNER ASSOCIATES, INC.
UEIKNPARAFZXKR1CAGE36HV0
Location: SHELTON, CT
Secondary NAICSNot listed as small under 541380
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
W. L. BURLE ENGINEERS, P. A.
UEIQ43FXPPFF6M1CAGE66J61
Location: OXFORD, MSSocio-economic status (SAM.gov): SB
Secondary NAICSSmall under 541380
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
W. L. BURLE ENGINEERS, P.A.
DBA W. L. BURLE ENGINEERS, P.A
UEIM467F277GWC3CAGE1RAZ0
Location: GREENVILLE, MSSocio-economic status (SAM.gov): SBSDB
Secondary NAICSSmall under 541380
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
W. L. BURLE ENGINEERS, P.A.
UEITX16JU62B5U4CAGE66FB9
Location: MADISON, MSSocio-economic status (SAM.gov): SBHUBZone
Secondary NAICSSmall under 541380
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
WOODALL LLC
UEILFP2VLUSMQT8CAGE0Q5F0
Location: IDAHO FALLS, IDSocio-economic status (SAM.gov): SBSDBWOSBVOSBSDVOSB
Secondary NAICSSmall under 541380
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
WOODBURY TECHNICAL SERVICES LLC
UEIYCJQQC7AY3C3CAGE33KZ1
Location: LITTLE ROCK, ARSocio-economic status (SAM.gov): SBVOSB
Secondary NAICSSmall under 541380
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
WOOD RODGERS, INC.
DBA WOOD RODGERS INC
UEIH2FJPWCLWGM7CAGE3HHE8
Location: SACRAMENTO, CA
Secondary NAICSNot listed as small under 541380
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
WOODSONG TECHNOLOGIES LLC
UEIVLN3S8WZ1JP7CAGE8SY33
Location: ANNAPOLIS JUNCTION, MDSocio-economic status (SAM.gov): SBWOSB
Secondary NAICSSmall under 541380
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
WOOLPERT INC
UEIKA5JA3E7Y7K4CAGE886U9
Location: BAY SAINT LOUIS, MS
Secondary NAICSNot listed as small under 541380
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
WORKFORCE ESSENTIALS INC
UEIHQLJBA2X8TK5CAGE1LA69
Location: CLARKSVILLE, TN
Secondary NAICSNot listed as small under 541380
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
WORLDWIDE MEDICAL PRODUCTS INC
UEIRVP1CCPL42P9CAGE4Q1U7
Location: BRISTOL, PASocio-economic status (SAM.gov): SB
Secondary NAICSNot listed as small under 541380
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
WORTHINGTON, LENHART & CARPENTER, INC.
UEIVUY8S81KH561CAGE1ECY5
Location: CASPER, WYSocio-economic status (SAM.gov): SBSDB
Secondary NAICSSmall under 541380
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
WOVEN LABORATORIES LLC
UEIHQ6EQMM88LV6CAGE1ZRV1
Location: LOS ANGELES, CASocio-economic status (SAM.gov): SBWOSB
Secondary NAICSSmall under 541380
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
WOYT INTERNATIONAL, LLC
UEIJX54J4CK1GJ1CAGE996W6
Location: KINGWOOD, TXSocio-economic status (SAM.gov): SBWOSB
Secondary NAICSSmall under 541380
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
W & P LLC
UEISKX7YFNJ6N51CAGE5GVV5
Location: HATTIESBURG, MSSocio-economic status (SAM.gov): SBSDBWOSB
Secondary NAICSSmall under 541380
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
WSBJ LLC
UEISW5YDRLL6ZS1CAGE9B0A7
Location: HILLSBORO, TX
Secondary NAICSNot listed as small under 541380
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
WS GLOBAL, LLC
UEIWLN1GTQLQ3U9CAGE17M72
Location: GLENDALE, AZSocio-economic status (SAM.gov): SB
Secondary NAICSSmall under 541380
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
WSP USA ENVIRONMENT & INFRASTRUCTURE INC.
UEIMZQ8YJKMLQ94CAGE1SVL3
Location: KENNESAW, GA
Secondary NAICSNot listed as small under 541380
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

Contractors listing NAICS 541380, page 447 of 450
Company	This code	Compliance	SAM.gov	Obligated, 36 mo
WISS, JANNEY, ELSTNER ASSOCIATES, INC UEILWCAD18KYZT6CAGE36KA8 Location: HOUSTON, TX	Secondary NAICSNot listed as small under 541380	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
WISS, JANNEY, ELSTNER ASSOCIATES, INC UEIQ1JAVNMRNJM1CAGE36JX8 Location: FALLS CHURCH, VA	Secondary NAICSNot listed as small under 541380	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
WISS, JANNEY, ELSTNER ASSOCIATES, INC. UEIKNPARAFZXKR1CAGE36HV0 Location: SHELTON, CT	Secondary NAICSNot listed as small under 541380	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
W. L. BURLE ENGINEERS, P. A. UEIQ43FXPPFF6M1CAGE66J61 Location: OXFORD, MSSocio-economic status (SAM.gov): SB	Secondary NAICSSmall under 541380	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
W. L. BURLE ENGINEERS, P.A. DBA W. L. BURLE ENGINEERS, P.A UEIM467F277GWC3CAGE1RAZ0 Location: GREENVILLE, MSSocio-economic status (SAM.gov): SBSDB	Secondary NAICSSmall under 541380	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
W. L. BURLE ENGINEERS, P.A. UEITX16JU62B5U4CAGE66FB9 Location: MADISON, MSSocio-economic status (SAM.gov): SBHUBZone	Secondary NAICSSmall under 541380	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
WOODALL LLC UEILFP2VLUSMQT8CAGE0Q5F0 Location: IDAHO FALLS, IDSocio-economic status (SAM.gov): SBSDBWOSBVOSBSDVOSB	Secondary NAICSSmall under 541380	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
WOODBURY TECHNICAL SERVICES LLC UEIYCJQQC7AY3C3CAGE33KZ1 Location: LITTLE ROCK, ARSocio-economic status (SAM.gov): SBVOSB	Secondary NAICSSmall under 541380	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
WOOD RODGERS, INC. DBA WOOD RODGERS INC UEIH2FJPWCLWGM7CAGE3HHE8 Location: SACRAMENTO, CA	Secondary NAICSNot listed as small under 541380	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
WOODSONG TECHNOLOGIES LLC UEIVLN3S8WZ1JP7CAGE8SY33 Location: ANNAPOLIS JUNCTION, MDSocio-economic status (SAM.gov): SBWOSB	Secondary NAICSSmall under 541380	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
WOOLPERT INC UEIKA5JA3E7Y7K4CAGE886U9 Location: BAY SAINT LOUIS, MS	Secondary NAICSNot listed as small under 541380	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
WORKFORCE ESSENTIALS INC UEIHQLJBA2X8TK5CAGE1LA69 Location: CLARKSVILLE, TN	Secondary NAICSNot listed as small under 541380	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
WORLDWIDE MEDICAL PRODUCTS INC UEIRVP1CCPL42P9CAGE4Q1U7 Location: BRISTOL, PASocio-economic status (SAM.gov): SB	Secondary NAICSNot listed as small under 541380	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
WORTHINGTON, LENHART & CARPENTER, INC. UEIVUY8S81KH561CAGE1ECY5 Location: CASPER, WYSocio-economic status (SAM.gov): SBSDB	Secondary NAICSSmall under 541380	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
WOVEN LABORATORIES LLC UEIHQ6EQMM88LV6CAGE1ZRV1 Location: LOS ANGELES, CASocio-economic status (SAM.gov): SBWOSB	Secondary NAICSSmall under 541380	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
WOYT INTERNATIONAL, LLC UEIJX54J4CK1GJ1CAGE996W6 Location: KINGWOOD, TXSocio-economic status (SAM.gov): SBWOSB	Secondary NAICSSmall under 541380	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
W & P LLC UEISKX7YFNJ6N51CAGE5GVV5 Location: HATTIESBURG, MSSocio-economic status (SAM.gov): SBSDBWOSB	Secondary NAICSSmall under 541380	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
WSBJ LLC UEISW5YDRLL6ZS1CAGE9B0A7 Location: HILLSBORO, TX	Secondary NAICSNot listed as small under 541380	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
WS GLOBAL, LLC UEIWLN1GTQLQ3U9CAGE17M72 Location: GLENDALE, AZSocio-economic status (SAM.gov): SB	Secondary NAICSSmall under 541380	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
WSP USA ENVIRONMENT & INFRASTRUCTURE INC. UEIMZQ8YJKMLQ94CAGE1SVL3 Location: KENNESAW, GA	Secondary NAICSNot listed as small under 541380	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

Codes these contractors list most often alongside 541380: natural teaming adjacencies.

Testing Laboratories and Services

Work this industry

Contractors listing NAICS 541380

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