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

Security Systems Services (except Locksmiths)

10,104 active contractors list NAICS 561621 (Security Systems Services (except Locksmiths)) in SAM.gov; 7,308 are small under its SBA size standard and 1,732 list it as their primary NAICS.

Learn more about NAICS size standards

Search with filters Small businesses only

Active contractors: 10,104
Small under 561621SBA size standard for this code: 7,308
Primary NAICSTheir main line of business: 1,732
Hidden registrationsExcluded, expired or inactive: 123

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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

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

Showing 6,241–6,260 of 10,104 contractors

GUELAWAR LLC
UEIYT3AUZ4L1MN6CAGE12S86
Location: GRAND RAPIDS, 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
GUILLORY TECHNOLOGIES LLC
UEILRLHDNZ6EYU8CAGE9RC43
Location: MOSS POINT, MSSocio-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
GULF COAST POWER AND LIGHT CO.
DBA GULF COAST POWER & LIGHT CO
UEIFKB2D38R1KF8CAGE5EAU4
Location: LEHIGH ACRES, FLSocio-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
GULF ELECTRICAL CONTRACTORS LLC
UEIGDKRCLPM7E54CAGE21US4
Location: THIBODAUX, LASocio-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
GULF GEOEXCHANGE AND CONSULTING SERVICES, INC.
UEISFEMG2D1VMQ5CAGE5CKZ6
Location: BELLE CHASSE, LASocio-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
GUNTER CONSTRUCTION, INC
UEIVN2AL724JED7CAGE3YSF5
Location: SULPHUR, LA
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
GUYETTE COMMUNICATION INDUSTRIES CORPORATION
UEIU5R2F9YXV8C7CAGE1RCA7
Location: PLYMOUTH, PASocio-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
GWT NETWORKS, LLC
UEIZN36HYDCUHY4CAGE0Q7P7
Location: GAINESVILLE, VASocio-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
GZ JOINT VENTURE
DBA GZ JV
UEIKB1SW5GP6HE7CAGE9QP32
Location: PHOENIX, AZ
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
H2 CONSTRUCTION INC
UEIP1CQKGN9SFC5CAGE247B1
Location: MARTINSBURG, WVSocio-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
H2 SECURITY AND SMART HOME SOLUTIONS LLC
UEICXFHV382NT53CAGE9CWD9
Location: INDEPENDENCE, MOSocio-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
H4S LLC
UEIH3X1FFR313W3CAGE25C27
Location: RIVERVIEW, FLSocio-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
HACKERDOGS, INC.
UEIQLREMJ8P7AB7CAGE223X9
Location: SAN RAMON, 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
HADEJIA LLC
UEIW3Y6JS4R87H6CAGE9W7Y3
Location: HOUSTON, TX
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
HALCYON STRATEGIC SOLUTIONS LLC
UEIDQP6R3LL6WD6CAGE25CC1
Location: SHORELINE, WASocio-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
HALEOS INDUSTRIES LLC
UEIJ4SQRS59HBU5CAGE20BH9
Location: KANSAS CITY, MOSocio-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
HALOCRYPT LLC
UEIDSN9V4E23N65CAGE15YW8
Location: ACWORTH, GASocio-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
HAM & HAM NETWORKING LLC
UEINHP6MXY2L468CAGE8FHP9
Location: STOCKBRIDGE, GASocio-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
HAMILTON CONTRACTORS LLC
UEICLJXRATSLAF1CAGE9VA23
Location: MILWAUKEE, WISocio-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
HAMILTON FEDERAL LLC
UEICVQAYERJH423CAGE158L2
Location: MARCO ISLAND, 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

Contractors listing NAICS 561621, page 313 of 506
Company	This code	Compliance	SAM.gov	Obligated, 36 mo
GUELAWAR LLC UEIYT3AUZ4L1MN6CAGE12S86 Location: GRAND RAPIDS, 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
GUILLORY TECHNOLOGIES LLC UEILRLHDNZ6EYU8CAGE9RC43 Location: MOSS POINT, MSSocio-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
GULF COAST POWER AND LIGHT CO. DBA GULF COAST POWER & LIGHT CO UEIFKB2D38R1KF8CAGE5EAU4 Location: LEHIGH ACRES, FLSocio-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
GULF ELECTRICAL CONTRACTORS LLC UEIGDKRCLPM7E54CAGE21US4 Location: THIBODAUX, LASocio-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
GULF GEOEXCHANGE AND CONSULTING SERVICES, INC. UEISFEMG2D1VMQ5CAGE5CKZ6 Location: BELLE CHASSE, LASocio-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
GUNTER CONSTRUCTION, INC UEIVN2AL724JED7CAGE3YSF5 Location: SULPHUR, LA	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
GUYETTE COMMUNICATION INDUSTRIES CORPORATION UEIU5R2F9YXV8C7CAGE1RCA7 Location: PLYMOUTH, PASocio-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
GWT NETWORKS, LLC UEIZN36HYDCUHY4CAGE0Q7P7 Location: GAINESVILLE, VASocio-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
GZ JOINT VENTURE DBA GZ JV UEIKB1SW5GP6HE7CAGE9QP32 Location: PHOENIX, AZ	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
H2 CONSTRUCTION INC UEIP1CQKGN9SFC5CAGE247B1 Location: MARTINSBURG, WVSocio-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
H2 SECURITY AND SMART HOME SOLUTIONS LLC UEICXFHV382NT53CAGE9CWD9 Location: INDEPENDENCE, MOSocio-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
H4S LLC UEIH3X1FFR313W3CAGE25C27 Location: RIVERVIEW, FLSocio-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
HACKERDOGS, INC. UEIQLREMJ8P7AB7CAGE223X9 Location: SAN RAMON, 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
HADEJIA LLC UEIW3Y6JS4R87H6CAGE9W7Y3 Location: HOUSTON, TX	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
HALCYON STRATEGIC SOLUTIONS LLC UEIDQP6R3LL6WD6CAGE25CC1 Location: SHORELINE, WASocio-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
HALEOS INDUSTRIES LLC UEIJ4SQRS59HBU5CAGE20BH9 Location: KANSAS CITY, MOSocio-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
HALOCRYPT LLC UEIDSN9V4E23N65CAGE15YW8 Location: ACWORTH, GASocio-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
HAM & HAM NETWORKING LLC UEINHP6MXY2L468CAGE8FHP9 Location: STOCKBRIDGE, GASocio-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
HAMILTON CONTRACTORS LLC UEICLJXRATSLAF1CAGE9VA23 Location: MILWAUKEE, WISocio-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
HAMILTON FEDERAL LLC UEICVQAYERJH423CAGE158L2 Location: MARCO ISLAND, 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

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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