Sectors & Industries IndustrialsSecurity & Protection Services
Best Security & Protection Service Stocks to Buy Now (2026)
Top security & protection service stocks in 2026 ranked by overall Zen Rating. "A" Rated stocks have returned an average of +32.52% per year, and are the best security & protection service stocks to buy now. Learn More.

Industry: Security & Protection Ser...

Growth Financials Momentum Sentiment Forecast Dividends Due Diligence

Security & Protection Services is Zen Rated C and is the 59th ranked industry out of 145 stock market industries

Ticker	Company	Price	Graham Fair Value	Graham Fair Value %	P/E	Forward P/E	P/S	P/B	PEG	Free Cash Flow	Free Cash Flow Yield	Book Value	BVPS	EV	EV/EBITDA
BCO	BRINKS CO	$107.52	$102.80	4.59%	22.73x	11.58x	0.86x	15.93x	0.48x	$436.40M	9.62%	$277.70M	6.58	$6.68B	7.60
MG	MISTRAS GROUP INC	$19.28	$17.29	11.54%	35.70x	18.29x	0.84x	2.59x	0.46x	$12.38M	2.04%	$235.10M	7.49	$783.51M	11.51
NSSC	NAPCO SECURITY TECHNOLOGIES INC	$46.72	$11.82	295.13%	35.13x	32.26x	8.68x	9.02x	3.48x	$53.66M	3.22%	$184.81M	5.18	$1.57B	26.65
CXW	CORECIVIC INC	$20.58	$18.06	13.98%	18.88x	13.49x	0.91x	1.43x	0.58x	$58.87M	2.93%	$1.41B	14.38	$3.12B	8.96
SPCB	SUPERCOM LTD	$9.74	N/A	N/A	11.87x	21.45x	1.59x	1.20x	N/A	-$8.57M	-19.32%	$43.51M	9.56	$63.02M	17.99
BRC	BRADY CORP	$82.16	$42.87	91.65%	19.06x	16.17x	2.48x	2.96x	1.45x	$169.77M	4.37%	$1.31B	27.75	$3.85B	12.67
REZI	RESIDEO TECHNOLOGIES INC	$40.14	N/A	N/A	-10.65x	12.78x	0.80x	2.08x	N/A	-$1.25B	-20.95%	$2.92B	19.58	$8.58B	-67.54
GEO	GEO GROUP INC	$18.75	N/A	N/A	10.14x	15.69x	0.98x	1.67x	N/A	-$124.90M	-4.84%	$1.51B	10.95	$3.99B	6.31
MSA	MSA SAFETY INC	$165.79	$74.68	121.99%	23.32x	18.87x	3.43x	4.70x	1.58x	$295.51M	4.60%	$1.37B	35.26	$6.89B	14.67
ADT	ADT INC	$7.55	$7.31	3.34%	9.81x	8.17x	1.12x	1.57x	0.83x	$1.50B	26.07%	$3.80B	5.00	$13.49B	5.05
EVLV	EVOLV TECHNOLOGIES HOLDINGS INC	$7.29	N/A	N/A	-36.45x	-107.21x	8.42x	10.95x	N/A	-$18.33M	-1.50%	$119.42M	0.71	$1.30B	-244.74
ALLE	ALLEGION PLC	$135.49	$72.38	87.19%	18.38x	15.12x	2.80x	5.54x	1.44x	$682.60M	5.85%	$2.10B	24.40	$13.37B	13.31
UUU	UNIVERSAL SAFETY PRODUCTS INC	$6.09	N/A	N/A	-76.13x	N/A	1.30x	7.29x	N/A	$5.99M	42.53%	$2.27M	0.98	$14.15M	98.80
GFAI	GUARDFORCE AI CO LTD	$0.58	N/A	N/A	-1.93x	4.74x	0.36x	0.41x	N/A	-$1.62M	-12.76%	$34.15M	1.56	-$6.20M	1.62
NL	NL INDUSTRIES INC	$6.11	N/A	N/A	-7.94x	6.45x	1.89x	0.83x	N/A	-$40.15M	-13.45%	$358.77M	7.34	$185.00M	-3.74
BAER	BRIDGER AEROSPACE GROUP HOLDINGS INC	$2.05	N/A	N/A	-4.88x	-6.70x	0.91x	-0.33x	N/A	-$17.71M	-15.90%	-$342.59M	-6.31	$328.11M	7.69
KSCP	KNIGHTSCOPE INC	$3.13	N/A	N/A	-0.78x	-1.41x	2.34x	1.84x	N/A	-$32.87M	-124.15%	$27.77M	3.28	$38.18M	-1.22
IVDA	IVEDA SOLUTIONS INC	$0.30	N/A	N/A	-0.34x	N/A	0.21x	0.71x	N/A	-$2.03M	-183.83%	$4.78M	1.31	-$1.14M	0.37
CIX	COMPX INTERNATIONAL INC	$23.67	$14.01	68.98%	14.98x	N/A	1.84x	2.10x	1.50x	$19.12M	6.56%	$138.63M	11.25	$237.59M	8.06
VRME	VERIFYME INC	$0.77	N/A	N/A	-1.97x	-5.03x	0.59x	0.92x	N/A	-$130.00k	-1.30%	$10.99M	0.87	$6.50M	-1.57
BKYI	BIO KEY INTERNATIONAL INC	$5.33	N/A	N/A	-0.59x	-2.27x	0.56x	0.96x	N/A	-$3.35M	-95.40%	$6.05M	9.18	$5.20M	-1.41
SUGP	SU GROUP HOLDINGS LTD	$4.33	N/A	N/A	-2.53x	N/A	0.24x	0.57x	N/A	-$2.19M	-36.58%	$11.04M	7.98	$4.05M	-2.07
SNT	SENSTAR TECHNOLOGIES LTD	$2.76	$3.21	-14.05%	19.68x	N/A	1.77x	1.49x	0.39x	N/A	N/A	$43.22M	1.85	$42.49M	N/A
YOOV	CONCORDE INTERNATIONAL GROUP LTD	$1.63	N/A	N/A	0.94x	N/A	3.26x	8.89x	N/A	-$4.29M	-11.90%	$4.06M	0.18	$41.84M	-16.52

Security & Protection Service Stocks FAQ

What are the best security & protection service stocks to buy right now in May 2026?

According to Zen Ratings, our proprietary rating system that evaluates 115 factors proven to drive growth in stocks and assigns each stock in our system an overall letter grade as well as 7 individual Component Grades for Value, Growth, Momentum, Sentiment, Safety, Financials, and proprietary AI algorithms, the 3 best security & protection service stocks to buy right now are:

1. Brinks Co (NYSE:BCO)

Brinks Co (NYSE:BCO) is the #1 top security & protection service stock out of 24 with a Zen Rating of A. Stocks with a rating of A have had an average return of +32.52% per year. Learn more.

The Component Grade breakdown for Brinks Co (NYSE:BCO) is: Value: B, Growth: A, Momentum: C, Sentiment: C, Safety: A, Financials: B, and AI: B.

Brinks Co (NYSE:BCO) has a Due Diligence Score of 43, which is 10 points higher than the security & protection service industry average of 33.

BCO passed 16 out of 38 due diligence checks and has strong fundamentals. Brinks Co has seen its stock return 20.89% over the past year, overperforming other security & protection service stocks by 10 percentage points.

Brinks Co has an average 1 year price target of $154.00, an upside of 43.23% from Brinks Co's current stock price of $107.52.

Brinks Co stock has a consensus Strong Buy recommendation according to Wall Street analysts. Of the 2 analysts covering Brinks Co, 100% have issued a Strong Buy rating, 0% have issued a Buy, 0% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

2. Mistras Group (NYSE:MG)

Mistras Group (NYSE:MG) is the #2 top security & protection service stock out of 24 with a Zen Rating of B. Stocks with a rating of B have had an average return of +19.88% per year. Learn more.

The Component Grade breakdown for Mistras Group (NYSE:MG) is: Value: C, Growth: B, Momentum: C, Sentiment: C, Safety: B, Financials: C, and AI: C.

Mistras Group (NYSE:MG) has a Due Diligence Score of 30, which is -3 points lower than the security & protection service industry average of 33. Although this number is below the industry average, our proven quant model rates MG as a "B".

MG passed 10 out of 33 due diligence checks and has average fundamentals. Mistras Group has seen its stock return 110.48% over the past year, overperforming other security & protection service stocks by 99 percentage points.

3. Napco Security Technologies (NASDAQ:NSSC)

Napco Security Technologies (NASDAQ:NSSC) is the #3 top security & protection service stock out of 24 with a Zen Rating of B. Stocks with a rating of B have had an average return of +19.88% per year. Learn more.

The Component Grade breakdown for Napco Security Technologies (NASDAQ:NSSC) is: Value: C, Growth: C, Momentum: C, Sentiment: B, Safety: C, Financials: A, and AI: C.

Napco Security Technologies (NASDAQ:NSSC) has a Due Diligence Score of 48, which is 15 points higher than the security & protection service industry average of 33.

NSSC passed 19 out of 38 due diligence checks and has strong fundamentals. Napco Security Technologies has seen its stock return 103.13% over the past year, overperforming other security & protection service stocks by 92 percentage points.

Napco Security Technologies has an average 1 year price target of $50.33, an upside of 7.73% from Napco Security Technologies's current stock price of $46.72.

Napco Security Technologies stock has a consensus Strong Buy recommendation according to Wall Street analysts. Of the 3 analysts covering Napco Security Technologies, 66.67% have issued a Strong Buy rating, 33.33% have issued a Buy, 0% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

What are the security & protection service stocks with highest dividends?

Out of 8 security & protection service stocks that have issued dividends in the past year, the 3 security & protection service stocks with the highest dividend yields are:

1. Nl Industries (NYSE:NL)

Nl Industries (NYSE:NL) has an annual dividend yield of 9.49%, which is 6 percentage points higher than the security & protection service industry average of 3.31%. Nl Industries's dividend payout is not stable, having dropped more than 10% three times in the last 10 years. Nl Industries's dividend has shown consistent growth over the last 10 years.

Nl Industries's dividend payout ratio of -74% indicates that its high dividend yield might not be sustainable for the long-term.

2. Compx International (NYSEMKT:CIX)

Compx International (NYSEMKT:CIX) has an annual dividend yield of 9.29%, which is 6 percentage points higher than the security & protection service industry average of 3.31%. Compx International's dividend payout is not stable, having dropped more than 10% three times in the last 10 years. Compx International's dividend has shown consistent growth over the last 10 years.

Compx International's dividend payout ratio of 139.2% indicates that its high dividend yield might not be sustainable for the long-term.

3. Adt (NYSE:ADT)

Adt (NYSE:ADT) has an annual dividend yield of 2.91%, which is the same as the security & protection service industry average of 3.31%. Adt's dividend payout is not stable, having dropped more than 10% one times in the last 10 years. Adt's dividend has shown consistent growth over the last 10 years.

Adt's dividend payout ratio of 28.6% indicates that its dividend yield is sustainable for the long-term.

Why are security & protection service stocks down?

Security & protection service stocks were down -0.12% in the last day, and down -2.01% over the last week.

We couldn't find a catalyst for why security & protection service stocks are down.

What are the most undervalued security & protection service stocks?

Based on the Valuation rating, one of the 7 components of a stocks overall Zen Ratings grade, which evaluates factors including estimated earnings yield, earnings before interest and taxes/enterprise value, cash flow yield, free cash flow to price, and price-to-earnings growth (PEG ratio), the 3 most undervalued security & protection service stocks right now are:

1. Adt (NYSE:ADT)

Adt (NYSE:ADT) is the most undervalued security & protection service stock based on its Valuation Rating of A. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Adt has a valuation score of 57, which is 38 points higher than the security & protection service industry average of 19. It passed 4 out of 7 valuation due diligence checks.

Adt's stock has dropped -5.74% in the past year. It has underperformed other stocks in the security & protection service industry by -17 percentage points.

2. Brinks Co (NYSE:BCO)

Brinks Co (NYSE:BCO) is the second most undervalued security & protection service stock based on its Valuation Rating of B. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Brinks Co has a valuation score of 14, which is -5 points higher than the security & protection service industry average of 19. It passed 1 out of 7 valuation due diligence checks. Although this number is below the industry average, our proven quant model rates BCO a Valuation Rating of "B".

Brinks Co's stock has gained 20.89% in the past year. It has overperformed other stocks in the security & protection service industry by 10 percentage points.

3. Msa Safety (NYSE:MSA)

Msa Safety (NYSE:MSA) is the third most undervalued security & protection service stock based on its Valuation Rating of B. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Msa Safety has a valuation score of 0, which is -19 points higher than the security & protection service industry average of 19. It passed 0 out of 7 valuation due diligence checks. Although this number is below the industry average, our proven quant model rates MSA a Valuation Rating of "B".

Msa Safety's stock has gained 6.41% in the past year. It has underperformed other stocks in the security & protection service industry by -5 percentage points.

Are security & protection service stocks a good buy now?

53.85% of security & protection service stocks rated by analysts are a strong buy right now. On average, analysts expect security & protection service stocks to rise by 13.63% over the next year.

5.88% of security & protection service stocks have a Zen Rating of A (Strong Buy), 17.65% of security & protection service stocks are rated B (Buy), 47.06% are rated C (Hold), 23.53% are rated D (Sell), and 5.88% are rated F (Strong Sell).

What is the average p/e ratio of the security & protection services industry?

The average P/E ratio of the security & protection services industry is 13.27x.

WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.