Security software related companies

List of security companies (in general) known readily

• Check Point Software Technologies Ltd

• Palo Alto Networks

• Symantec Corp.

• Fortinet, Inc.

• FireEye, Inc.

• Proofpoint

• Imperva, Inc.

• AVG Technologies

• Synamtac

• CISCO

• Juniper

• Google

NAC security companies

• • Pulse secure

  • Forscout

  • Extreme networks

  • Aruba

• Bradford networks

• InfoExpress

• Impulse

• Auconet

SSLVPN/Remote access related companies

• Pulse secure

• Dell Sonicwall

• CISCO

• Citrix VPN

Wireless security companies

• • Aruba (Wireless Access Point)

  • Nokia (mobile network security)

  • Samsung (mobile network security)

Firewall security companies

• • Palo-alto

  • Cisco

  • Fortinet

  • Checkpoint

Finance domain security companies

• Paypal

• Visa

• Amazon (amazon pay)

• Samsung (Samsung pay)

Container security companies

• • Aquasec

  • Sysdig

Refer here for more listings

Cyber security companies

Please refer https://www.thesoftwarereport.com/top-25-cybersecurity-companies-of-2018/

Wanna more?

Many more are listed here

Reference

https://www.esecurityplanet.com/products/top-network-access-control-solutions.html

https://www.eletimes.com/10-biggest-cyber-security-companies-to-watch-out-for