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Top Cyber Security Companies in the US
Last updated:02 Oct 2025
Created by
Surfe
| Views:
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Market context behind this list
Sort by
Annual Revenue
Company Growth
Team Growth
Location
| Companies | Key Contacts | Annual Revenue | Funding | Company Growth | Management Team Growth | Hiring Status | Tech Stack | HQ Location | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |
Peraton Labs
Information Technology
|
332
|
Executive Assistant, Machine Learning Research Scientist, Risk Decision Group - Contract Investigator
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -0.6%
334 ↘ 332 Employees
|
📈 Strong growth: 20%
5 ↗ 6 Employees
|
Actively Hiring
|
19
|
Basking Ridge, New Jersey, United States
|
|
| 2 |
CertiK
Cyber Security
|
132
|
Security Engineer, Staff Security Engineer, Asker
|
>100
|
$500-1,000M
|
Series B,
04-22-2022
|
📊 Modest Growth: 2.33%
129 ↗ 132 Employees
|
📊 Modest Growth: 14.29%
7 ↗ 8 Employees
|
Actively Hiring
|
29
|
Town of New Windsor, New York, United States
|
|
| 3 |
Metro One
Security
|
645
|
Security Officer, Security Supervisor, Security Guard
|
>100
|
$500-1,000M
|
|
📊 Modest Growth: 0.47%
642 ↗ 645 Employees
|
📊 Modest Growth: 4.76%
21 ↗ 22 Employees
|
Actively Hiring
|
21
|
New York, New York, United States
|
|
| 4 |
Quest Software
Cyber Security
|
1,971
|
Developer, Fringe/trimmings maker, Engagement Manager
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -1.45%
2,000 ↘ 1,971 Employees
|
📊 Modest Growth: 4.55%
22 ↗ 23 Employees
|
Actively Hiring
|
30
|
Aliso Viejo, California, United States
|
|
| 5 |
Tenable, Inc.
Cloud Security
|
1,584
|
Technical Account Manager, Manager, Commercial Sales, Sales And Marketing Intern
|
>100
|
$500-1,000M
|
Post-IPO Equity,
07-29-2020
|
📊 Modest Growth: 2.26%
1,549 ↗ 1,584 Employees
|
📊 Modest Growth: 2.94%
34 ↗ 35 Employees
|
Actively Hiring
|
50
|
Columbia, Maryland, United States
|
|
| 6 |
Cloudflare
Cloud Computing
|
3,659
|
Sr. Product Designer, Head of Sales, SLED West, Senior Pricing & Strategy Manager
|
>100
|
$500-1,000M
|
Series E,
03-12-2019
|
📉 Negative Growth: -0.16%
3,665 ↘ 3,659 Employees
|
📊 Modest Growth: 2.86%
35 ↗ 36 Employees
|
Actively Hiring
|
15
|
San Francisco, California, United States
|
|
| 7 |
Akamai Technologies
Cloud Security
|
8,663
|
Cloud Support Engineer II, Systems Engineer 2, Principal Software Engineer
|
>100
|
$>1,000M
|
Post-IPO Debt,
08-15-2023
|
📊 Modest Growth: 0.92%
8,584 ↗ 8,663 Employees
|
📊 Modest Growth: 0.88%
113 ↗ 114 Employees
|
Actively Hiring
|
24
|
Cambridge, Massachusetts, United States
|
|
| 8 |
General Dynamics Information Technology
Artificial Intelligence
|
15,226
|
Program Manager, Systems Administrator, Information Technology Quality Assurance Analyst
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -0.19%
15,255 ↘ 15,226 Employees
|
📊 Modest Growth: 0.88%
114 ↗ 115 Employees
|
Actively Hiring
|
26
|
Falls Church, United States
|
|
| 9 |
Davis Wright Tremaine
Cyber Security
|
1,144
|
Partner, Senior Fraud Investigative Analyst, SR Practice Support Analyst
|
>100
|
$500-1,000M
|
|
📊 Modest Growth: 0.18%
1,142 ↗ 1,144 Employees
|
📊 Modest Growth: 0.52%
194 ↗ 195 Employees
|
Actively Hiring
|
11
|
Seattle, Washington, United States
|
|
| 10 |
Vulnhub
Information Technology
|
7
|
CTF Player, Ethical Hacker, CTF Player
|
+3
|
$500-1,000M
|
|
⏸️ No Growth: 0%
7 Employees
|
⏸️ No Growth: 0%
Employees
|
Not Hiring
|
11
|
Kerhonkson, New York, United States
|
|
| 11 |
SonicWall
Cyber Security
|
1,277
|
Technical Support Engineer, iCAM, Intern
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -0.23%
1,280 ↘ 1,277 Employees
|
⏸️ No Growth: 0%
29 Employees
|
Actively Hiring
|
39
|
Milpitas, Delaware, United States
|
|
| 12 |
Inter-Con Security Systems, Inc.
Security
|
1,566
|
Diplomatic Security Assistant, Security Officer, Special Police Officer
|
>100
|
$500-1,000M
|
|
📊 Modest Growth: 0.58%
1,557 ↗ 1,566 Employees
|
⏸️ No Growth: 0%
30 Employees
|
Actively Hiring
|
18
|
Pasadena, California, United States
|
|
| 13 |
Gtt
Information Technology
|
1,835
|
Major Account Manager, Principal Problem Manager, Senior Client Account Manager, Wholesale
|
>100
|
$500-1,000M
|
|
📊 Modest Growth: 0.27%
1,830 ↗ 1,835 Employees
|
⏸️ No Growth: 0%
31 Employees
|
Actively Hiring
|
30
|
Arlington, Virginia, United States
|
|
| 14 |
Fyi
Enterprise Software
|
13
|
Nirajan, Ggik, Marketing Manager
|
+15
|
$500-1,000M
|
|
⏸️ No Growth: 0%
13 Employees
|
⏸️ No Growth: 0%
3 Employees
|
Not Hiring
|
28
|
San Francisco, United States
|
|
| 15 |
Splunk
Artificial Intelligence
|
7,053
|
Assigned Expert Consultant, DHA Account Executive, Senior Director, Global Security Operations
|
>100
|
$500-1,000M
|
|
📊 Modest Growth: 0.01%
7,052 ↗ 7,053 Employees
|
⏸️ No Growth: 0%
74 Employees
|
Actively Hiring
|
13
|
San Francisco, California, United States
|
|
| 16 |
Defense information system Agency
Military
|
2,913
|
Information Technology Project Manager, Data Center Architect, Telecommunications Specialist
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -0.27%
2,921 ↘ 2,913 Employees
|
⏸️ No Growth: 0%
81 Employees
|
Actively Hiring
|
13
|
Fort Meade, Maryland, United States
|
|
| 17 |
Qihoo 360
Software
|
919
|
技术副总监, product director, Product Manager
|
>100
|
$100-500M
|
Series B,
11-15-2006
|
📉 Negative Growth: -0.11%
920 ↘ 919 Employees
|
⏸️ No Growth: 0%
32 Employees
|
Not Hiring
|
0
|
Chaoyang District, China
|
|
| 18 |
Check Point Software
Cloud Security
|
5,628
|
Software Developer, Application Analyst, Training Specialist
|
>100
|
$>1,000M
|
|
📉 Negative Growth: -0.5%
5,656 ↘ 5,628 Employees
|
⏸️ No Growth: 0%
55 Employees
|
Actively Hiring
|
27
|
San Carlos, United States
|
|
| 19 |
Box
Artificial Intelligence
|
2,405
|
Large Enterprise Account Executive | Financial Services | FSI | FinServ, Director Of Data Services, Senior Engineering Manager
|
>100
|
$500-1,000M
|
Post-IPO Debt,
09-18-2024
|
📉 Negative Growth: -0.08%
2,407 ↘ 2,405 Employees
|
⏸️ No Growth: 0%
46 Employees
|
Actively Hiring
|
28
|
Redwood City, California, United States
|
|
| 20 |
Palo Alto Networks
Cyber Security
|
13,116
|
Sr Director, Systems Engineering - US SLED, Solutions Consultant, Sr. SD BSA
|
>100
|
$>1,000M
|
Series C,
11-03-2008
|
📉 Negative Growth: -0.08%
13,127 ↘ 13,116 Employees
|
⏸️ No Growth: 0%
106 Employees
|
Actively Hiring
|
33
|
Santa Clara, California, United States
|
|
| 21 |
Sally Beauty
Security
|
3,375
|
Assistant Manager, Salesperson, Beauty Advisor
|
+99
|
$500-1,000M
|
Post-IPO Debt,
02-27-2024
|
📉 Negative Growth: -0.21%
3,382 ↘ 3,375 Employees
|
⏸️ No Growth: 0%
44 Employees
|
Actively Hiring
|
6
|
Denton, Texas, United States
|
|
| 22 |
Halcyon Tech, Inc
Cyber Security
|
134
|
CEO + Co-Founder, Director of Customer Success, Commercial Account Executive
|
>100
|
$500-1,000M
|
Series C,
11-25-2024
|
📊 Modest Growth: 0.75%
133 ↗ 134 Employees
|
⏸️ No Growth: 0%
10 Employees
|
Actively Hiring
|
26
|
Ingram, Texas, United States
|
|
| 23 |
CACI International
National Security
|
12,460
|
Financial Analyst, Billing / AR Analyst, Senior Logistics Management Specialist
|
>100
|
$>1,000M
|
|
📉 Negative Growth: -0.06%
12,468 ↘ 12,460 Employees
|
⏸️ No Growth: 0%
156 Employees
|
Actively Hiring
|
15
|
Arlington, Virginia, United States
|
|
| 24 |
McAfee
Cyber Security
|
2,577
|
Engineering Operations, Account Executive, Controller
|
>100
|
$500-1,000M
|
|
📊 Modest Growth: 0.04%
2,576 ↗ 2,577 Employees
|
⏸️ No Growth: 0%
39 Employees
|
Actively Hiring
|
47
|
San Jose, California, United States
|
|
| 25 |
Select Sands America
Information Technology
|
3
|
Truck Driver, Equipment Operator, Heavy Equipment Operator
|
+4
|
$500-1,000M
|
|
⏸️ No Growth: 0%
3 Employees
|
⏸️ No Growth: 0%
Employees
|
Not Hiring
|
3
|
Houston, Texas, United States
|
|
| 26 |
EMB Phones
E-Commerce
|
565
|
Chief Operating Officer, Department Sales Manager
|
+2
|
$1-10M
|
|
📉 Negative Growth: -0.7%
569 ↘ 565 Employees
|
⏸️ No Growth: 0%
1 Employees
|
Not Hiring
|
5
|
New York, New York, United States
|
|
| 27 |
Sucuri
Cyber Security
|
26
|
Website Security Specialist, bus, Sucuri Sales Consultant
|
+44
|
$500-1,000M
|
|
📊 Modest Growth: 4%
25 ↗ 26 Employees
|
⏸️ No Growth: 0%
Employees
|
Not Hiring
|
33
|
Menifee, California, United States
|
|
| 28 |
Commvault
Information Technology
|
2,979
|
SDE I, Territory Account Manager, Principal Engineer
|
>100
|
$500-1,000M
|
|
📊 Modest Growth: 0.13%
2,975 ↗ 2,979 Employees
|
⏸️ No Growth: 0%
48 Employees
|
Actively Hiring
|
31
|
Tinton Falls, New Jersey, United States
|
|
| 29 |
Venustech
Cyber Security
|
37
|
安全服务工程师, Senior Sales Consultant, 品牌营销经理
|
+99
|
$500-1,000M
|
|
⏸️ No Growth: 0%
37 Employees
|
⏸️ No Growth: 0%
1 Employees
|
Actively Hiring
|
0
|
New York, New York, United States
|
|
| 30 |
Firefly
Information Technology
|
37
|
Operations Manager, Instructor, Business Development Specialist
|
>100
|
$500-1,000M
|
|
📊 Modest Growth: 2.78%
36 ↗ 37 Employees
|
⏸️ No Growth: 0%
3 Employees
|
Not Hiring
|
36
|
Chandler, Arizona, United States
|
|
| 31 |
Industrial Safety and Security Source
Security
|
|
Editor/Founder
|
+1
|
$500-1,000M
|
|
⏸️ No Growth: 0%
Employees
|
⏸️ No Growth: 0%
Employees
|
Not Hiring
|
33
|
Durham, North Carolina, United States
|
|
| 32 |
ManageEngine
Information Services
|
322
|
Marketing Analyst | Content Writer | Events, Senior Marketing Specialist, Product Marketing Associate
|
>100
|
$500-1,000M
|
|
📊 Modest Growth: 1.9%
316 ↗ 322 Employees
|
⏸️ No Growth: 0%
7 Employees
|
Not Hiring
|
8
|
Pharr, Texas, United States
|
|
| 33 |
Security Industry Specialists
Physical Security
|
1,082
|
National Director Of Operations, gurd, Security Guard
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -0.82%
1,091 ↘ 1,082 Employees
|
⏸️ No Growth: 0%
8 Employees
|
Actively Hiring
|
10
|
Culver City, United States
|
|
| 34 |
Ampcus Cyber
Cloud Security
|
86
|
Senior Business Development Manager, Jr Cybersecurity Analyst, Marketing Executive
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -2.27%
88 ↘ 86 Employees
|
⏸️ No Growth: 0%
9 Employees
|
Not Hiring
|
22
|
Chantilly, Virginia, United States
|
|
| 35 |
EPlus
Information Services
|
1,300
|
Senior Account Executive, Analyst III, IT Sales
|
>100
|
$>1,000M
|
|
📉 Negative Growth: -1.07%
1,314 ↘ 1,300 Employees
|
⏸️ No Growth: 0%
54 Employees
|
Actively Hiring
|
33
|
Herndon, Virginia, United States
|
|
| 36 |
Mandiant
Cyber Security
|
822
|
Katsina
|
+1
|
$500-1,000M
|
Private Equity Round,
07-22-2011
|
⏸️ No Growth: 0%
822 Employees
|
⏸️ No Growth: 0%
32 Employees
|
Not Hiring
|
20
|
Reston, Virginia, United States
|
|
| 37 |
Meshimer
Information Technology
|
2
|
Technician, meshimer
|
+2
|
$500-1,000M
|
|
⏸️ No Growth: 0%
2 Employees
|
⏸️ No Growth: 0%
Employees
|
Not Hiring
|
6
|
Brooklyn, United States
|
|
| 38 |
DigiCert
Cyber Security
|
|
Associate Contracts Manager, Accounting Manager, Housekeeping Specialist
|
>100
|
$500-1,000M
|
|
⏸️ No Growth: 0%
Employees
|
⏸️ No Growth: 0%
Employees
|
Not Hiring
|
25
|
Lehi, Utah, United States
|
|
| 39 |
CyberHoot
Cyber Security
|
3
|
Virtual Chief Information Security Officer - vCISO, Sales And Marketing Specialist, Co-Founder
|
+6
|
$500-1,000M
|
|
⏸️ No Growth: 0%
3 Employees
|
⏸️ No Growth: 0%
2 Employees
|
Not Hiring
|
43
|
Portsmouth, New Hampshire, United States
|
|
| 40 |
C5Mi
Information Technology
|
87
|
ISSM, SAP Developer II, Enterprise Architect
|
>100
|
$500-1,000M
|
|
📊 Modest Growth: 2.35%
85 ↗ 87 Employees
|
⏸️ No Growth: 0%
6 Employees
|
Actively Hiring
|
30
|
Jacksonville Beach, Florida, United States
|
|
| 41 |
MRX Technologies
Information Technology
|
1
|
Accounting Manager, Chief Executive Officer
|
+2
|
$500-1,000M
|
|
⏸️ No Growth: 0%
1 Employees
|
⏸️ No Growth: 0%
1 Employees
|
Not Hiring
|
4
|
Las Vegas, Nevada, United States
|
|
| 42 |
KnowBe4
Cyber Security
|
1,634
|
SMB Account Manager, Customer Success Manager, Senior Manager, Public Relations
|
>100
|
$500-1,000M
|
Post-IPO Equity,
06-12-2023
|
📊 Modest Growth: 0.62%
1,624 ↗ 1,634 Employees
|
⏸️ No Growth: 0%
15 Employees
|
Actively Hiring
|
32
|
Clearwater, Florida, United States
|
|
| 43 |
Netscout
Information Technology
|
1,374
|
Sr. Product Support Engineer, Security Officer, Senior Software Engineer
|
>100
|
$500-1,000M
|
Series B,
01-01-1999
|
📉 Negative Growth: -0.15%
1,376 ↘ 1,374 Employees
|
⏸️ No Growth: 0%
36 Employees
|
Actively Hiring
|
14
|
Westford, Massachusetts, United States
|
|
| 44 |
LetsDefend
Cyber Security
|
70
|
CTF Player, SOC Analyst Learning Path, Self Learner (SOC & Blue Team Practice)
|
+63
|
$500-1,000M
|
|
📉 Negative Growth: -4.11%
73 ↘ 70 Employees
|
⏸️ No Growth: 0%
4 Employees
|
Not Hiring
|
23
|
Short Pump, Virginia, United States
|
|
| 45 |
United States Secret Service
Security
|
1,140
|
Deputy Assistant Director, Task Force, Assistant Special Agent in Charge
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -0.87%
1,150 ↘ 1,140 Employees
|
⏸️ No Growth: 0%
20 Employees
|
Actively Hiring
|
1
|
Washington, District of Columbia, United States
|
|
| 46 |
Deeper Network
Internet
|
18
|
CEO, Director Of Business Operations, 物流主管
|
+16
|
$500-1,000M
|
|
⏸️ No Growth: 0%
18 Employees
|
⏸️ No Growth: 0%
2 Employees
|
Not Hiring
|
29
|
Santa Clara, United States
|
|
| 47 |
N-able
Cyber Security
|
1,310
|
perito, RAS, Senior Service Desk Analyst
|
>100
|
$500-1,000M
|
Debt Financing,
07-12-2021
|
📊 Modest Growth: 1.55%
1,290 ↗ 1,310 Employees
|
⏸️ No Growth: 0%
13 Employees
|
Actively Hiring
|
29
|
Morrisville, North Carolina, United States
|
|
| 48 | Freelance Web Development
Cyber Security
|
2,401
|
Admin, Web Developer, Full-stack Web Developer
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -0.25%
2,407 ↘ 2,401 Employees
|
⏸️ No Growth: 0%
26 Employees
|
Not Hiring
|
9
|
Colorado, United States
|
|
| 49 |
Consolidated Nuclear Security
Cyber Security
|
875
|
Engineering Advisor, Human Resources Director, Program Manager
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -0.57%
880 ↘ 875 Employees
|
⏸️ No Growth: 0%
17 Employees
|
Actively Hiring
|
13
|
Oak Ridge, Tennessee, United States
|
|
| 50 |
Moxfive
Cyber Security
|
32
|
Sr Director, Technical Advisory, Managing Director, Technical Advisory Services, Information Technology Service Desk support
|
+51
|
$500-1,000M
|
|
📊 Modest Growth: 6.67%
30 ↗ 32 Employees
|
⏸️ No Growth: 0%
6 Employees
|
Not Hiring
|
15
|
McLean, Virginia, United States
|
|
| 51 |
ITPro Today
Information Technology
|
3
|
Contributing Writer
|
+1
|
$500-1,000M
|
|
⏸️ No Growth: 0%
3 Employees
|
⏸️ No Growth: 0%
Employees
|
Not Hiring
|
50
|
San Francisco, California, United States
|
|
| 52 |
Gula Tech Adventures
Cyber Security
|
5
|
General Manager, Managing Director, Technical Specialist
|
+4
|
$500-1,000M
|
|
⏸️ No Growth: 0%
5 Employees
|
⏸️ No Growth: 0%
3 Employees
|
Not Hiring
|
16
|
Columbia, Maryland, United States
|
|
| 53 |
Cisco
Information Technology
|
70,006
|
Senior Financial Analyst, Finance Business OpEx, Technical Leader, Marketing Program Manager
|
>100
|
$>1,000M
|
|
📉 Negative Growth: -0.23%
70,165 ↘ 70,006 Employees
|
📉 Negative Growth: -0.16%
631 ↘ 630 Employees
|
Actively Hiring
|
15
|
San Jose, California, United States
|
|
| 54 |
Saic
Information Technology
|
16,503
|
VP, Director for Op Finance, Lead, Sub Contractor
|
>100
|
$>1,000M
|
Post-IPO Equity,
09-13-2010
|
📉 Negative Growth: -0.41%
16,571 ↘ 16,503 Employees
|
📉 Negative Growth: -0.36%
276 ↘ 275 Employees
|
Actively Hiring
|
19
|
Reston, Virginia, United States
|
|
| 55 |
Securitas Security Services USA
Security
|
12,562
|
Loss Prevention, Security Officer, Security Supervisor
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -0.35%
12,606 ↘ 12,562 Employees
|
📉 Negative Growth: -0.54%
184 ↘ 183 Employees
|
Actively Hiring
|
14
|
Parsippany-Troy Hills, New Jersey, United States
|
|
| 56 |
The Mitre Corporation
National Security
|
6,186
|
Lead Behavioral Health Scientist, Senior RF Systems Engineer, Network & Distributed Systems Engineer
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -0.02%
6,187 ↘ 6,186 Employees
|
📉 Negative Growth: -0.66%
151 ↘ 150 Employees
|
Actively Hiring
|
22
|
McLean, Virginia, United States
|
|
| 57 |
Allied Universal
Security
|
25,953
|
Security Guard, Security Officer, Field Investigator
|
>100
|
$500-1,000M
|
Private Equity Round,
09-01-2019
|
📉 Negative Growth: -0.77%
26,155 ↘ 25,953 Employees
|
📉 Negative Growth: -0.75%
267 ↘ 265 Employees
|
Actively Hiring
|
22
|
Irvine, California, United States
|
|
| 58 |
Amentum
Information Technology
|
12,802
|
Materials Control Specialist, Principal Safety Engineer, MV-22 Osprey Mechanic 2
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -0.51%
12,868 ↘ 12,802 Employees
|
📉 Negative Growth: -1.45%
138 ↘ 136 Employees
|
Actively Hiring
|
30
|
Germantown, Maryland, United States
|
|
| 59 |
F5
Information Technology
|
5,288
|
Senior Program Manager, Solutions Engineer, Senior Regional Services Manager
|
>100
|
$>1,000M
|
|
📊 Modest Growth: 0.06%
5,285 ↗ 5,288 Employees
|
📉 Negative Growth: -2.04%
49 ↘ 48 Employees
|
Actively Hiring
|
11
|
Seattle, Washington, United States
|
|
| 60 |
Trellix
Cyber Security
|
2,682
|
Staff Software Development Engineer, Staff Data Scientist, Program Manager | Musarubra Software India Pvt Ltd (Trellix)
|
>100
|
$500-1,000M
|
|
📉 Negative Growth: -0.52%
2,696 ↘ 2,682 Employees
|
📉 Negative Growth: -2.44%
41 ↘ 40 Employees
|
Actively Hiring
|
29
|
Springboro, Ohio, United States
|
|
| 61 |
Proofpoint
Cloud Security
|
3,514
|
Sustaining Engineer, Lead Software Engineer, Sr. Information Protection | Cloud Security Specialist
|
>100
|
$500-1,000M
|
Post-IPO Debt,
08-21-2019
|
📉 Negative Growth: -0.23%
3,522 ↘ 3,514 Employees
|
📉 Negative Growth: -2.5%
40 ↘ 39 Employees
|
Actively Hiring
|
26
|
Sunnyvale, California, United States
|
|
| 62 |
Exelis Inc.
Military
|
287
|
Software Engineer, GIS Specialist, Program Manager
|
+10
|
-
|
|
📉 Negative Growth: -0.35%
288 ↘ 287 Employees
|
📉 Negative Growth: -50%
2 ↘ 1 Employees
|
Not Hiring
|
0
|
Nashua, New Hampshire, United States
|