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Security & Protection Services
Stocks Ranked by
Market Capitalization

Name Market cap Price Price
change %
ALLE icon
1
Allegion
ALLE
$13.4B
$13.4B $157.06 0.89%
MSA icon
2
Mine Safety
MSA
$6.73B
$6.73B $174.35 0.83%
ADT icon
3
ADT
ADT
$5.51B
$5.51B $7.51 1.35%
BCO icon
4
Brink's
BCO
$4.84B
$4.84B $117.48 3.48%
BRC icon
5
Brady Corp
BRC
$4.39B
$4.39B $93.14 1.66%
GEO icon
6
The GEO Group
GEO
$4.1B
$4.1B $30.67 2.4%
CXW icon
7
CoreCivic
CXW
$2.95B
$2.95B $29.80 0.17%
NSSC icon
8
Napco Security Technologies
NSSC
$1.3B
$1.3B $36.37 0%
EVLV icon
9
Evolv Technologies
EVLV
$986M
$986M $5.48 1.26%
MG icon
10
Mistras Group
MG
$483M
$483M $15.17 1.13%
NL icon
11
NLI Holdings
NL
$290M
$290M $5.93 0.34%
BAER icon
12
Bridger Aerospace
BAER
$114M
$114M $1.98 4.76%
CIGL
13
Concorde International Group Ltd Class A Ordinary Shares
CIGL
$104M
$104M $0.4592 0.46%
SPCB icon
14
SuperCom
SPCB
$67.1M
$67.1M $10.69 3.99%
SNT
15
Senstar Technologies
SNT
$40.6M
$40.6M $1.74 3.57%
KSCP icon
16
Knightscope
KSCP
$34.3M
$34.3M $1.99 44.2%
DETX
17
Liberty Defense Holdings
DETX
$17.6M
$17.6M $3.11 0.32%
GFAI icon
18
Guardforce AI
GFAI
$9.69M
$9.69M $0.3101 2.05%
VRME icon
19
VerifyMe
VRME
$9.17M
$9.17M $0.6991 1.35%
BKYI
20
BIO-key International
BKYI
$4.7M
$4.7M $4.33 1.37%
IVDA icon
21
Iveda Solutions
IVDA
$2.99M
$2.99M $0.2575 8.19%
SUGP icon
22
SU Group Holdings
SUGP
$2.12M
$2.12M $0.4750 1.04%

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 22 Security & Protection Services industry stocks tracked by Wall St. Rank, worth a combined $45.3B.

The largest by market cap are Allegion (ALLE) at $13.4B, Mine Safety (MSA) at $6.73B and ADT (ADT) at $5.51B.

Among institutional investors, Mine Safety (MSA) drew the most net new fund positions in Q1 2026: 70 funds opened new positions, taking total fund holders up 41 (10%) quarter-over-quarter.

  • Combined market cap: $45.3B across 22 stocks.
  • Largest constituent: Allegion (ALLE), $13.4B market cap.
  • Most net new fund positions in Q1 2026: Mine Safety (MSA), +41 holders.

Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q1 2026.