NAICS 541990 · Professional, Scientific, and Technical Services

All Other Professional, Scientific, and Technical Services

39,391 active contractors list NAICS 541990 (All Other Professional, Scientific, and Technical Services) in SAM.gov; 28,009 are small under its SBA size standard and 6,366 list it as their primary NAICS.

Learn more about NAICS size standards

Search with filters Small businesses only

Active contractors: 39,391
Small under 541990SBA size standard for this code: 28,009
Primary NAICSTheir main line of business: 6,366
Hidden registrationsExcluded, expired or inactive: 528

Work this industry

Live RFPs in this NAICS
Open SAM.gov solicitations coded 541990, matched to teaming partners.
Expiring awards
Incumbent contracts in 541990 heading to recompete in the next 18 months.
Small under 541990
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 541990

Claimed profiles come first by membership level, then companies with 541990 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

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

Showing 7,401–7,420 of 39,391 contractors

MAKPAR CORPORATION
DBA MAKPAR CORP
UEIG61TZZQKC3L9CAGE6QXN2
Location: CENTREVILLE, VASocio-economic status (SAM.gov): SBSDB8(a)WOSB
Secondary NAICSNot listed as small under 541990
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: $88M ($88,024,713)
ITEGRITY INC
UEIE8BJXCK8JMH1CAGE5NYL0
Location: SILVER SPRING, MDSocio-economic status (SAM.gov): SBSDB
Secondary NAICSSmall under 541990
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: $87.8M ($87,772,085)
ONEIDA TOTAL INTEGRATED ENTERPRISES LLC
UEIHZKTS2LAEAU4CAGE5GNJ9
Location: MILWAUKEE, WISocio-economic status (SAM.gov): SBSDBTribal
Secondary NAICSNot listed as small under 541990
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: $87.5M ($87,524,397)
ISLAND PEER REVIEW ORGANIZATION INC
UEIDAJ7XLL4J823CAGE3KNC3
Location: JERICHO, NY
Secondary NAICSNot listed as small under 541990
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: $87.5M ($87,455,353)
JLL-RER SOLUTIONS, LLC
UEIHG45BDPFM2A8CAGE8NYJ2
Location: WASHINGTON, DC
Secondary NAICSNot listed as small under 541990
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: $87.4M ($87,400,177)
LEIDOS INC
DBA LEIDOS QTC HEALTH SERVICES
UEIPQSTC7GEV5L6CAGE5UTP8
Location: RESTON, VA
Secondary NAICSNot listed as small under 541990
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: $87.3M ($87,296,585)
MILE TWO LLC
UEINJRVLNMKG9E8CAGE7FM75
Location: DAYTON, OHSocio-economic status (SAM.gov): SBVOSBSDVOSB
Secondary NAICSNot listed as small under 541990
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: $86.9M ($86,936,575)
WESTECH INTERNATIONAL, INC.
UEIFUB1GWA78ET3CAGE01MA5
Location: FISHERS, INSocio-economic status (SAM.gov): SB
Secondary NAICSNot listed as small under 541990
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: $86.9M ($86,867,128)
PD SYSTEMS, LLC
UEIMBF6MBLZLMC3CAGE4V8V7
Location: SPRINGFIELD, VASocio-economic status (SAM.gov): SB
Secondary NAICSNot listed as small under 541990
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: $86.6M ($86,588,835)
PATRONA CORPORATION
UEIJWEKB3ZYMGN3CAGE48H29
Location: WASHINGTON, DC
Secondary NAICSNot listed as small under 541990
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: $86.5M ($86,546,407)
GSI NORTH AMERICA INC
UEIEHM2NWLJHSJ7CAGE74P10
Location: FLEMINGTON, NJSocio-economic status (SAM.gov): SBSDB
Secondary NAICSNot listed as small under 541990
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: $86.5M ($86,541,450)
INTERFUZE CORPORATION
UEICV2JCNGSF896CAGE0AFL2
Location: HUNTSVILLE, ALSocio-economic status (SAM.gov): SBVOSBSDVOSB
Secondary NAICSNot listed as small under 541990
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: $86.5M ($86,516,676)
WWC GLOBAL LLC
UEINDYNH8RJT3G8CAGE3XTD1
Location: MASHANTUCKET, CTSocio-economic status (SAM.gov): SBSDBTribal
Secondary NAICSNot listed as small under 541990
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: $86.3M ($86,345,965)
CORNERSTONE CONSTRUCTION SERVICES, LLC
DBA CORNERSTONE CONSTRUCTION SERVICES LLC
UEIJYEWBM2PC2J5CAGE4XRZ9
Location: WOBURN, MASocio-economic status (SAM.gov): SBVOSBSDVOSB
Secondary NAICSSmall under 541990
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: $86.1M ($86,104,271)
NORTHROP GRUMMAN SYSTEMS CORPORATION
DBA NORTHROP GRUMMAN SYSTEMS CORP
UEIFGUQXGJZ1U13CAGE8KKX3
Location: IRVING, TX
Secondary NAICSNot listed as small under 541990
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: $86M ($85,978,135)
INSIGHT PUBLIC SECTOR, INC.
UEIFLZ4SYA9U2D1CAGE3DLL3
Location: CHANDLER, AZ
Secondary NAICSNot listed as small under 541990
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: $85.8M ($85,838,202)
CONSTELLATION INC
UEIF93GMYJCTJR8CAGE4CQM8
Location: MC LEAN, VASocio-economic status (SAM.gov): SBSDB
Secondary NAICSSmall under 541990
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: $85.8M ($85,773,407)
VXL ENTERPRISES LLC
UEIFK3WEY7RXSM4CAGE5PJH3
Location: FREDERICKSBURG, VASocio-economic status (SAM.gov): SBVOSB
Secondary NAICSSmall under 541990
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: $85.7M ($85,691,945)
PUEO - ST. MICHAEL'S JOINT VENTURE, LLC
UEIQNHTBRN8Z1K4CAGE8NCX7
Location: MC LEAN, VASocio-economic status (SAM.gov): SBVOSBSDVOSB
Secondary NAICSNot listed as small under 541990
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: $85.7M ($85,683,893)
SINTELA INC
UEIMXG2MQ1LJRV5CAGE8EP60
Location: HOUSTON, TXSocio-economic status (SAM.gov): SB
Secondary NAICSSmall under 541990
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: $85.6M ($85,584,966)

Contractors listing NAICS 541990, page 371 of 1970
Company	This code	Compliance	SAM.gov	Obligated, 36 mo
MAKPAR CORPORATION DBA MAKPAR CORP UEIG61TZZQKC3L9CAGE6QXN2 Location: CENTREVILLE, VASocio-economic status (SAM.gov): SBSDB8(a)WOSB	Secondary NAICSNot listed as small under 541990	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	$88M ($88,024,713)
ITEGRITY INC UEIE8BJXCK8JMH1CAGE5NYL0 Location: SILVER SPRING, MDSocio-economic status (SAM.gov): SBSDB	Secondary NAICSSmall under 541990	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	$87.8M ($87,772,085)
ONEIDA TOTAL INTEGRATED ENTERPRISES LLC UEIHZKTS2LAEAU4CAGE5GNJ9 Location: MILWAUKEE, WISocio-economic status (SAM.gov): SBSDBTribal	Secondary NAICSNot listed as small under 541990	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	$87.5M ($87,524,397)
ISLAND PEER REVIEW ORGANIZATION INC UEIDAJ7XLL4J823CAGE3KNC3 Location: JERICHO, NY	Secondary NAICSNot listed as small under 541990	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	$87.5M ($87,455,353)
JLL-RER SOLUTIONS, LLC UEIHG45BDPFM2A8CAGE8NYJ2 Location: WASHINGTON, DC	Secondary NAICSNot listed as small under 541990	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	$87.4M ($87,400,177)
LEIDOS INC DBA LEIDOS QTC HEALTH SERVICES UEIPQSTC7GEV5L6CAGE5UTP8 Location: RESTON, VA	Secondary NAICSNot listed as small under 541990	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	$87.3M ($87,296,585)
MILE TWO LLC UEINJRVLNMKG9E8CAGE7FM75 Location: DAYTON, OHSocio-economic status (SAM.gov): SBVOSBSDVOSB	Secondary NAICSNot listed as small under 541990	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	$86.9M ($86,936,575)
WESTECH INTERNATIONAL, INC. UEIFUB1GWA78ET3CAGE01MA5 Location: FISHERS, INSocio-economic status (SAM.gov): SB	Secondary NAICSNot listed as small under 541990	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	$86.9M ($86,867,128)
PD SYSTEMS, LLC UEIMBF6MBLZLMC3CAGE4V8V7 Location: SPRINGFIELD, VASocio-economic status (SAM.gov): SB	Secondary NAICSNot listed as small under 541990	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	$86.6M ($86,588,835)
PATRONA CORPORATION UEIJWEKB3ZYMGN3CAGE48H29 Location: WASHINGTON, DC	Secondary NAICSNot listed as small under 541990	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	$86.5M ($86,546,407)
GSI NORTH AMERICA INC UEIEHM2NWLJHSJ7CAGE74P10 Location: FLEMINGTON, NJSocio-economic status (SAM.gov): SBSDB	Secondary NAICSNot listed as small under 541990	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	$86.5M ($86,541,450)
INTERFUZE CORPORATION UEICV2JCNGSF896CAGE0AFL2 Location: HUNTSVILLE, ALSocio-economic status (SAM.gov): SBVOSBSDVOSB	Secondary NAICSNot listed as small under 541990	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	$86.5M ($86,516,676)
WWC GLOBAL LLC UEINDYNH8RJT3G8CAGE3XTD1 Location: MASHANTUCKET, CTSocio-economic status (SAM.gov): SBSDBTribal	Secondary NAICSNot listed as small under 541990	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	$86.3M ($86,345,965)
CORNERSTONE CONSTRUCTION SERVICES, LLC DBA CORNERSTONE CONSTRUCTION SERVICES LLC UEIJYEWBM2PC2J5CAGE4XRZ9 Location: WOBURN, MASocio-economic status (SAM.gov): SBVOSBSDVOSB	Secondary NAICSSmall under 541990	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	$86.1M ($86,104,271)
NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP UEIFGUQXGJZ1U13CAGE8KKX3 Location: IRVING, TX	Secondary NAICSNot listed as small under 541990	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	$86M ($85,978,135)
INSIGHT PUBLIC SECTOR, INC. UEIFLZ4SYA9U2D1CAGE3DLL3 Location: CHANDLER, AZ	Secondary NAICSNot listed as small under 541990	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	$85.8M ($85,838,202)
CONSTELLATION INC UEIF93GMYJCTJR8CAGE4CQM8 Location: MC LEAN, VASocio-economic status (SAM.gov): SBSDB	Secondary NAICSSmall under 541990	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	$85.8M ($85,773,407)
VXL ENTERPRISES LLC UEIFK3WEY7RXSM4CAGE5PJH3 Location: FREDERICKSBURG, VASocio-economic status (SAM.gov): SBVOSB	Secondary NAICSSmall under 541990	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	$85.7M ($85,691,945)
PUEO - ST. MICHAEL'S JOINT VENTURE, LLC UEIQNHTBRN8Z1K4CAGE8NCX7 Location: MC LEAN, VASocio-economic status (SAM.gov): SBVOSBSDVOSB	Secondary NAICSNot listed as small under 541990	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	$85.7M ($85,683,893)
SINTELA INC UEIMXG2MQ1LJRV5CAGE8EP60 Location: HOUSTON, TXSocio-economic status (SAM.gov): SB	Secondary NAICSSmall under 541990	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	$85.6M ($85,584,966)

Codes these contractors list most often alongside 541990: natural teaming adjacencies.

All Other Professional, Scientific, and Technical Services

Work this industry

Contractors listing NAICS 541990

Related industries