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 1,181–1,200 of 10,115 contractors

N8TECH, LLC
UEIVDDRHH5UDJ33CAGE1APE2
Location: ROSWELL, NM
Primary 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
N.A.S. SECURITY SYSTEMS, INC.
DBA NAS SECURITY SYSTEMS INC
UEIN5X8D2YQ5MB6CAGE58AE9
Location: MIDDLETOWN, NY
Primary 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
NATIONAL SECURITY CORP
UEIHCLJPM45JQV8CAGE7TH19
Location: RUMFORD, RISocio-economic status (SAM.gov): SB
Primary 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
NATIONAL SECURITY & DOOR CORP.
DBA NATIONAL SECURITY & DOOR CORP
UEIZ88XJKS7WVC8CAGE8KC93
Location: NORTH CHESTERFIELD, VASocio-economic status (SAM.gov): SB
Primary 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
NATIONAL SECURITY, INC
UEIZUDZKE4JT4T1CAGE62VC6
Location: FAIRFAX, VASocio-economic status (SAM.gov): SB
Primary 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
NATIONAL SECURITY WORKS INCORPORATED
DBA NSW INTEGRATED SYSTEMS
UEISJJBW4X2BHJ9CAGE305P1
Location: SAN DIEGO, CASocio-economic status (SAM.gov): SB
Primary 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
NATIONWIDE SECURITY CORPORATION
UEIKJPSMJEETKA4CAGE3BY61
Location: BRANFORD, CTSocio-economic status (SAM.gov): SB
Primary 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
NATIVECYBER LLC
UEICBMCV8YQ8U84CAGE24D02
Location: Morgan Hill, CASocio-economic status (SAM.gov): SBSDB
Primary 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
NBJ SECURITY, LLC
UEIH6A2T1KZJSZ3CAGE16W55
Location: INDIANAPOLIS, INSocio-economic status (SAM.gov): SB
Primary 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
NCS ELECTRONICS, LLC
UEIUVCXPCJ5FN95CAGE8RUZ3
Location: CELEBRATION, FLSocio-economic status (SAM.gov): SB
Primary 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
ND INTEGRATED SOLUTIONS INC
UEIVT7NH3MCKLX5CAGE9LDG9
Location: MCDONOUGH, GASocio-economic status (SAM.gov): SB
Primary 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
NEPTUNE SECURITY, INC.
UEIU3ZYZXJP4BA8CAGE225P2
Location: ARGYLE, TXSocio-economic status (SAM.gov): SBVOSB
Primary 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
NETACCESS SECURITY LLC
UEIDBBLYLPNWE86CAGE5QXN5
Location: HARVEST, ALSocio-economic status (SAM.gov): SB
Primary 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
NETBASE SYSTEMS SOLUTIONS PLLC
UEIUQU1WE967JR4CAGE97DC2
Location: MATTESON, ILSocio-economic status (SAM.gov): SBVOSBSDVOSB
Primary 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
NETCARE1 SYSTEMS LLC
UEIXEK4U1L63A77CAGE8S4Y3
Location: LANCASTER, PASocio-economic status (SAM.gov): SBWOSB
Primary 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
NETMAT LLC
UEITAQBN9YPZ1M8CAGE14F52
Location: ALEXANDRIA, VASocio-economic status (SAM.gov): SB
Primary 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
NET SCALING SOLUTIONS, LLC
UEIVZCPJ9GKY437CAGE9NPW3
Location: SEVERN, MDSocio-economic status (SAM.gov): SB
Primary 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
NETWORK CABLING, INC.
DBA N.C.I
UEIMCXVPRJVABN5CAGE1R4R7
Location: FARMINGTON, NMSocio-economic status (SAM.gov): SB
Primary 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
NEW BEGINNINGS PARKING & ACCESS CONTROLS LLC
UEIG1FNHSFNJ983CAGE498L8
Location: CHESAPEAKE, VASocio-economic status (SAM.gov): SBWOSBVOSB
Primary 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
NEWBILL, IVANO
DBA OVAUS TECHNOLOGIES
UEICCY5PB1AUG73CAGE8JLG4
Location: Los Angeles, CASocio-economic status (SAM.gov): SBSDB
Primary 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 60 of 506
Company	This code	Compliance	SAM.gov	Obligated, 36 mo
N8TECH, LLC UEIVDDRHH5UDJ33CAGE1APE2 Location: ROSWELL, NM	Primary 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
N.A.S. SECURITY SYSTEMS, INC. DBA NAS SECURITY SYSTEMS INC UEIN5X8D2YQ5MB6CAGE58AE9 Location: MIDDLETOWN, NY	Primary 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
NATIONAL SECURITY CORP UEIHCLJPM45JQV8CAGE7TH19 Location: RUMFORD, RISocio-economic status (SAM.gov): SB	Primary 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
NATIONAL SECURITY & DOOR CORP. DBA NATIONAL SECURITY & DOOR CORP UEIZ88XJKS7WVC8CAGE8KC93 Location: NORTH CHESTERFIELD, VASocio-economic status (SAM.gov): SB	Primary 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
NATIONAL SECURITY, INC UEIZUDZKE4JT4T1CAGE62VC6 Location: FAIRFAX, VASocio-economic status (SAM.gov): SB	Primary 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
NATIONAL SECURITY WORKS INCORPORATED DBA NSW INTEGRATED SYSTEMS UEISJJBW4X2BHJ9CAGE305P1 Location: SAN DIEGO, CASocio-economic status (SAM.gov): SB	Primary 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
NATIONWIDE SECURITY CORPORATION UEIKJPSMJEETKA4CAGE3BY61 Location: BRANFORD, CTSocio-economic status (SAM.gov): SB	Primary 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
NATIVECYBER LLC UEICBMCV8YQ8U84CAGE24D02 Location: Morgan Hill, CASocio-economic status (SAM.gov): SBSDB	Primary 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
NBJ SECURITY, LLC UEIH6A2T1KZJSZ3CAGE16W55 Location: INDIANAPOLIS, INSocio-economic status (SAM.gov): SB	Primary 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
NCS ELECTRONICS, LLC UEIUVCXPCJ5FN95CAGE8RUZ3 Location: CELEBRATION, FLSocio-economic status (SAM.gov): SB	Primary 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
ND INTEGRATED SOLUTIONS INC UEIVT7NH3MCKLX5CAGE9LDG9 Location: MCDONOUGH, GASocio-economic status (SAM.gov): SB	Primary 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
NEPTUNE SECURITY, INC. UEIU3ZYZXJP4BA8CAGE225P2 Location: ARGYLE, TXSocio-economic status (SAM.gov): SBVOSB	Primary 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
NETACCESS SECURITY LLC UEIDBBLYLPNWE86CAGE5QXN5 Location: HARVEST, ALSocio-economic status (SAM.gov): SB	Primary 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
NETBASE SYSTEMS SOLUTIONS PLLC UEIUQU1WE967JR4CAGE97DC2 Location: MATTESON, ILSocio-economic status (SAM.gov): SBVOSBSDVOSB	Primary 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
NETCARE1 SYSTEMS LLC UEIXEK4U1L63A77CAGE8S4Y3 Location: LANCASTER, PASocio-economic status (SAM.gov): SBWOSB	Primary 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
NETMAT LLC UEITAQBN9YPZ1M8CAGE14F52 Location: ALEXANDRIA, VASocio-economic status (SAM.gov): SB	Primary 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
NET SCALING SOLUTIONS, LLC UEIVZCPJ9GKY437CAGE9NPW3 Location: SEVERN, MDSocio-economic status (SAM.gov): SB	Primary 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
NETWORK CABLING, INC. DBA N.C.I UEIMCXVPRJVABN5CAGE1R4R7 Location: FARMINGTON, NMSocio-economic status (SAM.gov): SB	Primary 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
NEW BEGINNINGS PARKING & ACCESS CONTROLS LLC UEIG1FNHSFNJ983CAGE498L8 Location: CHESAPEAKE, VASocio-economic status (SAM.gov): SBWOSBVOSB	Primary 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
NEWBILL, IVANO DBA OVAUS TECHNOLOGIES UEICCY5PB1AUG73CAGE8JLG4 Location: Los Angeles, CASocio-economic status (SAM.gov): SBSDB	Primary 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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