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Security & Protection Services
Stocks Ranked by
Market Capitalization

Name Market cap Price Price
change %
ALLE icon
1
Allegion
ALLE
$13B
$13B $153.35 1.38%
MSA icon
2
Mine Safety
MSA
$7.03B
$7.03B $182.18 0.5%
ADT icon
3
ADT
ADT
$5.15B
$5.15B $7.05 0.57%
BCO icon
4
Brink's
BCO
$4.61B
$4.61B $111.98 2.46%
GEO icon
5
The GEO Group
GEO
$4.14B
$4.14B $31.49 0.35%
BRC icon
6
Brady Corp
BRC
$4.08B
$4.08B $86.94 1.2%
CXW icon
7
CoreCivic
CXW
$3.45B
$3.45B $34.93 1.51%
NSSC icon
8
Napco Security Technologies
NSSC
$1.3B
$1.3B $36.26 2.11%
EVLV icon
9
Evolv Technologies
EVLV
$897M
$897M $4.95 0.4%
MG icon
10
Mistras Group
MG
$631M
$631M $19.81 2.38%
NL icon
11
NLI Holdings
NL
$343M
$343M $7.01 0.14%
CIGL
12
Concorde International Group
CIGL
$99.9M
$99.9M $0.4402 0.39%
SPCB icon
13
SuperCom
SPCB
$62.6M
$62.6M $9.96 1.12%
BAER icon
14
Bridger Aerospace
BAER
$61.2M
$61.2M $1.04 0%
SNT
15
Senstar Technologies
SNT
$38.5M
$38.5M $1.65 0.6%
DETX
16
Liberty Defense Holdings
DETX
$13.1M
$13.1M $2.30 0.43%
GFAI icon
17
Guardforce AI
GFAI
$11.3M
$11.3M $0.3605 0.08%
VRME icon
18
VerifyMe
VRME
$8.08M
$8.08M $0.6137 1.18%
BKYI
19
BIO-key International
BKYI
$3.81M
$3.81M $2.65 3.64%
IVDA icon
20
Iveda Solutions
IVDA
$3.57M
$3.57M $0.2855 0.49%
SUGP icon
21
SU Group Holdings
SUGP
$1.05M
$1.05M $0.6499 5.2%

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 $45B.

The largest by market cap are Allegion (ALLE) at $13B, Mine Safety (MSA) at $7.03B and ADT (ADT) at $5.15B.

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: $45B across 21 stocks.
  • Largest constituent: Allegion (ALLE), $13B 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.