We are live on ! Find out more

Security & Protection Services
Stocks Ranked by
Market Capitalization

Name Market cap Price Price
change %
ALLE icon
1
Allegion
ALLE
$15.9B
$15.9B $187.06 3.54%
ADT icon
2
ADT
ADT
$7.21B
$7.21B $9.87 33.2%
MSA icon
3
Mine Safety
MSA
$6.91B
$6.91B $179.16 1.13%
BCO icon
4
Brink's
BCO
$4.21B
$4.21B $102.19 2%
BRC icon
5
Brady Corp
BRC
$3.89B
$3.89B $83.02 1.42%
GEO icon
6
The GEO Group
GEO
$3.76B
$3.76B $28.54 3.52%
CXW icon
7
CoreCivic
CXW
$3.07B
$3.07B $31.08 1.47%
NSSC icon
8
Napco Security Technologies
NSSC
$1.43B
$1.43B $39.98 0.81%
EVLV icon
9
Evolv Technologies
EVLV
$878M
$878M $4.85 1.89%
MG icon
10
Mistras Group
MG
$644M
$644M $20.20 1.32%
NL icon
11
NLI Holdings
NL
$342M
$342M $6.99 0.71%
SPCB icon
12
SuperCom
SPCB
$64.6M
$64.6M $10.29 2.49%
CIGL icon
13
Concorde International Group
CIGL
$53.4M
$53.4M $0.2160 4.75%
SNT icon
14
Senstar Technologies
SNT
$38.5M
$38.5M $1.65 2.48%
BAER icon
15
Bridger Aerospace
BAER
$23.8M
$23.8M $0.4050 4.71%
KSCP icon
16
Knightscope
KSCP
$12M
$12M $0.5100 1.92%
DETX icon
17
Liberty Defense Holdings
DETX
$9.8M
$9.8M $1.73 7.45%
GFAI icon
18
Guardforce AI
GFAI
$6.08M
$6.08M $0.1901 4.47%
BKYI icon
19
BIO-key International
BKYI
$5.96M
$5.96M $2.93 6.69%
IVDA icon
20
Iveda Solutions
IVDA
$2.92M
$2.92M $0.2330 1.6%
SUGP icon
21
SU Group Holdings
SUGP
$428K
$428K $1.60 0%

Security & Protection Services Stocks at a Glance

Security and protection services companies provide guards, alarm monitoring, inspection, and detention services. Contracted, recurring revenue makes demand defensive, with route density in monitoring and labor costs in guarding setting the margins.

There are 21 Security & Protection Services industry stocks tracked by Wall St. Rank, worth a combined $48.5B.

The largest by market cap are Allegion (ALLE) at $15.9B, ADT (ADT) at $7.21B and Mine Safety (MSA) at $6.91B.

Among institutional investors, The GEO Group (GEO) drew the most net new fund positions in Q2 2026: 69 funds opened new positions, taking total fund holders up 31 (12%) quarter-over-quarter.

  • Combined market cap: $48.5B across 21 stocks.
  • Largest constituent: Allegion (ALLE), $15.9B market cap.
  • Most net new fund positions in Q2 2026: The GEO Group (GEO), +31 holders.

Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.