NAICS 561621 · Administrative and Support and Waste Management and Remediation Services

Security Systems Services (except Locksmiths)

10,115 active contractors list NAICS 561621 (Security Systems Services (except Locksmiths)) in SAM.gov; 7,305 are small under its SBA size standard and 1,733 list it as their primary NAICS.

Learn more about NAICS size standards

Search with filters Small businesses only

Active contractors: 10,115
Small under 561621SBA size standard for this code: 7,305
Primary NAICSTheir main line of business: 1,733
Hidden registrationsExcluded, expired or inactive: 112

Work this industry

Live RFPs in this NAICS
Open SAM.gov solicitations coded 561621, matched to teaming partners.
Expiring awards
Incumbent contracts in 561621 heading to recompete in the next 18 months.
Small under 561621
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 561621

Claimed profiles come first by membership level, then companies with 561621 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

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

Showing 10,041–10,060 of 10,115 contractors

WOFT, LLC
UEIQ3VUCBWHZJD4CAGE18GJ6
Location: CLERMONT, FLSocio-economic status (SAM.gov): SB
Secondary NAICSSmall under 561621
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
WOLF SCAN TECH LLC
UEIVPMTF88A5FQ1CAGE192H2
Location: HANOVER TOWNSHIP, PA
Secondary NAICSNot listed as small under 561621
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
WOLVERINE FIRE PROTECTION CO
UEIWXE7G127JJ63CAGE0M0L5
Location: MOUNT MORRIS, MI
Secondary NAICSNot listed as small under 561621
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
WOODS ENTERPRISE LLC
UEIUV49W8T6XCJ1CAGE0QNG6
Location: WINTER GARDEN, FLSocio-economic status (SAM.gov): SBSDBVOSBSDVOSB
Secondary NAICSSmall under 561621
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
WORKABLE SOLUTIONS INVESTIGATIVE & PROTECTIVE SERVICES, LLC
UEISD9DXL9NKLJ4CAGE6EP88
Location: MONTGOMERY, ALSocio-economic status (SAM.gov): SBVOSBSDVOSB
Secondary NAICSSmall under 561621
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
WORKODA INC
UEIQ6JWVRK2QFB6CAGE0QEU0
Location: ONAWAY, MI
Secondary NAICSNot listed as small under 561621
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
WORLD SERVICES LLC
UEIQHAVLBF73M57CAGE6CG54
Location: LORTON, VASocio-economic status (SAM.gov): SBSDBVOSBSDVOSB
Secondary NAICSSmall under 561621
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
WORRY FREE ALARMS INC.
UEIGFRAUC3B4EE6CAGE268V7
Location: GROTON, MASocio-economic status (SAM.gov): SB
Secondary NAICSSmall under 561621
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 561621
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-PNP, INC.
UEIW2SFVU6NVWM3CAGE692E7
Location: CALEXICO, CASocio-economic status (SAM.gov): SBSDB
Secondary NAICSSmall under 561621
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
WRASULTS FEDERAL CONTRACTING LLC
UEIL4SKAPEFCRB5CAGE9MYN0
Location: SUFFOLK, VASocio-economic status (SAM.gov): SBWOSBEDWOSB
Secondary NAICSSmall under 561621
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
WSG CONSULTING LLC
UEITKY4ZLVPHA35CAGE9NVY0
Location: SHERIDAN, WYSocio-economic status (SAM.gov): SB
Secondary NAICSSmall under 561621
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
WSK SOLUTIONS LLC
UEIPWN3K2Q5CCQ7CAGE13AP9
Location: FRONT ROYAL, VA
Secondary NAICSNot listed as small under 561621
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
W & S SOLUTIONS, LLC
DBA W & S SOLUTIONS LLC
UEIFXN8LTKF9AM9CAGE5PWZ6
Location: DUBLIN, CASocio-economic status (SAM.gov): SB
Secondary NAICSSmall under 561621
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. T. BERESFORD CO.
DBA BERESFORD CO
UEIKA2AV5H8TCT3CAGE032U4
Location: SOUTHFIELD, MISocio-economic status (SAM.gov): SB
Secondary NAICSSmall under 561621
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
WW THIRD ROCK, INC
DBA THIRD ROCK
UEIV3R1GDGFHDP1CAGE577K4
Location: CEDAR PARK, TXSocio-economic status (SAM.gov): SB
Secondary NAICSSmall under 561621
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
WYCLIFFE ENTERPRISES, INC.
DBA WYCLIFFE TECHNOLOGIES
UEIWCU4TE2ACKJ3CAGE304A3
Location: BELTSVILLE, MDSocio-economic status (SAM.gov): SBWOSB
Secondary NAICSSmall under 561621
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
WYOIT, LLC
UEIVVE5ZN6B2GV8CAGE9C5X5
Location: CHEYENNE, WYSocio-economic status (SAM.gov): SB
Secondary NAICSSmall under 561621
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
XATOR LLC
UEIKJ8ER9HT58B1CAGE710J6
Location: TAMPA, FL
Secondary NAICSNot listed as small under 561621
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
XCEL ENGINEERING, INC.
UEIJMB5NJ9QKN61CAGE3GSH3
Location: BRICEVILLE, TN
Secondary NAICSNot listed as small under 561621
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 561621, page 503 of 506
Company	This code	Compliance	SAM.gov	Obligated, 36 mo
WOFT, LLC UEIQ3VUCBWHZJD4CAGE18GJ6 Location: CLERMONT, FLSocio-economic status (SAM.gov): SB	Secondary NAICSSmall under 561621	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
WOLF SCAN TECH LLC UEIVPMTF88A5FQ1CAGE192H2 Location: HANOVER TOWNSHIP, PA	Secondary NAICSNot listed as small under 561621	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
WOLVERINE FIRE PROTECTION CO UEIWXE7G127JJ63CAGE0M0L5 Location: MOUNT MORRIS, MI	Secondary NAICSNot listed as small under 561621	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
WOODS ENTERPRISE LLC UEIUV49W8T6XCJ1CAGE0QNG6 Location: WINTER GARDEN, FLSocio-economic status (SAM.gov): SBSDBVOSBSDVOSB	Secondary NAICSSmall under 561621	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
WORKABLE SOLUTIONS INVESTIGATIVE & PROTECTIVE SERVICES, LLC UEISD9DXL9NKLJ4CAGE6EP88 Location: MONTGOMERY, ALSocio-economic status (SAM.gov): SBVOSBSDVOSB	Secondary NAICSSmall under 561621	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
WORKODA INC UEIQ6JWVRK2QFB6CAGE0QEU0 Location: ONAWAY, MI	Secondary NAICSNot listed as small under 561621	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
WORLD SERVICES LLC UEIQHAVLBF73M57CAGE6CG54 Location: LORTON, VASocio-economic status (SAM.gov): SBSDBVOSBSDVOSB	Secondary NAICSSmall under 561621	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
WORRY FREE ALARMS INC. UEIGFRAUC3B4EE6CAGE268V7 Location: GROTON, MASocio-economic status (SAM.gov): SB	Secondary NAICSSmall under 561621	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 561621	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-PNP, INC. UEIW2SFVU6NVWM3CAGE692E7 Location: CALEXICO, CASocio-economic status (SAM.gov): SBSDB	Secondary NAICSSmall under 561621	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
WRASULTS FEDERAL CONTRACTING LLC UEIL4SKAPEFCRB5CAGE9MYN0 Location: SUFFOLK, VASocio-economic status (SAM.gov): SBWOSBEDWOSB	Secondary NAICSSmall under 561621	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
WSG CONSULTING LLC UEITKY4ZLVPHA35CAGE9NVY0 Location: SHERIDAN, WYSocio-economic status (SAM.gov): SB	Secondary NAICSSmall under 561621	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
WSK SOLUTIONS LLC UEIPWN3K2Q5CCQ7CAGE13AP9 Location: FRONT ROYAL, VA	Secondary NAICSNot listed as small under 561621	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
W & S SOLUTIONS, LLC DBA W & S SOLUTIONS LLC UEIFXN8LTKF9AM9CAGE5PWZ6 Location: DUBLIN, CASocio-economic status (SAM.gov): SB	Secondary NAICSSmall under 561621	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. T. BERESFORD CO. DBA BERESFORD CO UEIKA2AV5H8TCT3CAGE032U4 Location: SOUTHFIELD, MISocio-economic status (SAM.gov): SB	Secondary NAICSSmall under 561621	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
WW THIRD ROCK, INC DBA THIRD ROCK UEIV3R1GDGFHDP1CAGE577K4 Location: CEDAR PARK, TXSocio-economic status (SAM.gov): SB	Secondary NAICSSmall under 561621	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
WYCLIFFE ENTERPRISES, INC. DBA WYCLIFFE TECHNOLOGIES UEIWCU4TE2ACKJ3CAGE304A3 Location: BELTSVILLE, MDSocio-economic status (SAM.gov): SBWOSB	Secondary NAICSSmall under 561621	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
WYOIT, LLC UEIVVE5ZN6B2GV8CAGE9C5X5 Location: CHEYENNE, WYSocio-economic status (SAM.gov): SB	Secondary NAICSSmall under 561621	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
XATOR LLC UEIKJ8ER9HT58B1CAGE710J6 Location: TAMPA, FL	Secondary NAICSNot listed as small under 561621	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
XCEL ENGINEERING, INC. UEIJMB5NJ9QKN61CAGE3GSH3 Location: BRICEVILLE, TN	Secondary NAICSNot listed as small under 561621	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 561621: natural teaming adjacencies.

Security Systems Services (except Locksmiths)

Work this industry

Contractors listing NAICS 561621

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