The telecommunications industry in California encompasses a diverse range of companies that offer cutting-edge technology solutions. These firms specialize in various aspects of telecommunications, from mobile and internet connectivity to optical networking solutions. Among them, you will find giants of wireless technology such as Qualcomm, as well as providers of innovative cloud services like Infinera. These companies are not only instrumental in enhancing the communication experience but are also paving the way for future advancements in the industry with their innovative offerings.


Top 21 telecommunications companies in California

1. Qualcomm

  • Website: qualcomm.com
  • Headquarters: San Diego, California, United States
  • Founded: 1985
  • Headcount: 10001+
  • Latest funding type: Ipo
  • LinkedIn

Qualcomm is a leading wireless technology company that specializes in mobile technology and innovation. They offer a wide range of products and services to enable seamless connectivity and enhance user experiences.


2. Infinera

  • Website: infinera.com
  • Headquarters: San Jose, California, United States
  • Founded: 2000
  • Headcount: 1001-5000
  • Latest funding type: Post Ipo Equity
  • LinkedIn

Infinera is a company that provides innovative optical networking solutions to carriers, cloud operators, governments, and enterprises. They specialize in scalable bandwidth, service innovation acceleration, and automated operations.


3. Sensity Systems

Verizon Enterprise is a leading telecommunications company that offers a wide range of internet and wired communication services. They provide reliable connectivity solutions to businesses of all sizes, ensuring efficient communication and seamless connectivity.


4. Source Photonics

  • Website: sourcephotonics.com
  • Headquarters: West Hills, California, United States
  • Founded: 1988
  • Headcount: 1001-5000
  • Latest funding type: Series Unknown
  • LinkedIn

Source Photonics is a leading global manufacturer of optical transceivers. They specialize in optoelectronic devices, optical subassembly, and module design. With technical expertise in R&D and a highly specialized engineering team, they offer advanced technology solutions for communications and data connectivity.


5. MegaPath

  • Website: megapath.com
  • Headquarters: Pleasanton, California, United States
  • Founded: 1996
  • Headcount: 201-500
  • LinkedIn

Megapath.com is a company that offers a wide range of innovative communication and networking solutions. They provide businesses with reliable and secure voice, data, and internet services to help them streamline their operations and enhance productivity.


6. Speakeasy

  • Website: speakeasy.net
  • Headquarters: Costa Mesa, California, United States
  • Founded: 1994
  • Headcount: 501-1000
  • Latest funding type: Acquired
  • LinkedIn

Speakeasy.net is a company that offers communication services and solutions.


7. JDSU (now Viavi Solutions)

  • Website: jdsu.com
  • Headquarters: Milpitas, California, United States
  • Founded: 1979
  • Headcount: 1001-5000
  • LinkedIn

JDSU is a leading provider of communications test and measurement solutions and optical products for telecommunications service providers, cable operators, and network equipment manufacturers.


8. Superior Communications

Superior Communications is a company that offers innovative solutions for communication needs. With a range of services including telecommunication systems, networking solutions, and audiovisual products, they provide effective and efficient communication solutions to businesses.


9. IP Infusion

  • Website: ipinfusion.com
  • Headquarters: Santa Clara, California, United States
  • Founded: 1999
  • Headcount: 201-500
  • Latest funding type: Acquired
  • LinkedIn

IP Infusion is a company that offers open networking solutions. They provide network operating systems for aggregation routers, cell site routers, and data centers. Their products are designed for carrier-grade deployments and offer flexibility and scalability.


10. Astranis Space Technologies

  • Website: astranis.com
  • Headquarters: San Francisco, California, United States
  • Founded: 2015
  • Headcount: 201-500
  • Latest funding type: Series Unknown
  • LinkedIn

Astranis is a company that specializes in building small, low-cost telecommunications satellites to provide internet access to the four billion people on Earth without connectivity. Their turnkey satellite solutions offer bandwidth-as-a-service at a fraction of the cost of traditional providers, unlocking previously unreachable markets.


11. Siklu

  • Website: siklu.com
  • Headquarters: Irvine, California, United States
  • Founded: 2008
  • Headcount: 51-200
  • Latest funding type: Series D
  • LinkedIn

Siklu is a company that specializes in providing wireless communication solutions. With a focus on high-capacity connectivity, they offer a range of products and services for various industries. Their offerings include wireless backhaul solutions, millimeter wave radios, and networking equipment.


12. EnGenius Technologies

Engenius Tech is a company that specializes in providing innovative solutions for wireless communications. They offer a wide range of products and services, including wireless routers, access points, and network management software. With a focus on reliability and performance, Engenius Tech aims to empower businesses and individuals with seamless connectivity.


13. Actelis Networks

  • Website: actelis.com
  • Headquarters: Fremont, California, United States
  • Founded: 1998
  • Headcount: 51-200
  • Latest funding type: Ipo
  • LinkedIn

Actelis is a company that offers reliable and resilient communications solutions for Ethernet access devices. They specialize in smart utilities and controlling all connected legacy/new IoT devices anywhere. Actelis provides hardened switches for IoT over fiber and copper, with cutting-edge encryption and built-in failover. Their solutions are backed by experience and expertise gained from supporting hundreds of installations and millions of connected lines worldwide.


14. FreeConferenceCall.com

FreeConferenceCall.com is an award-winning conferencing solution that offers phone conferencing service with international teleconferences, free video conferencing, free screen sharing, and a free virtual phone. It provides HD audio and video quality, the ability to save recordings, access to conferencing tools on any device, and customizable features such as custom hold music and custom greetings.


15. Pure IP

  • Website: pure-ip.com
  • Headquarters: San Francisco, California, United States
  • Founded: 2004
  • Headcount: 51-200
  • LinkedIn

Pure IP is a company that connects the old with the new, integrating voice across different platforms and applications to provide a single connected communications service. They enable businesses to collaborate effectively in multiple locations and offer secure, reliable enterprise voice solutions.


16. BridgeWave Communications

  • Website: bridgewave.com
  • Headquarters: Santa Clara, California, United States
  • Founded: 1999
  • Headcount: 51-200
  • Latest funding type: Series Unknown
  • LinkedIn

BridgeWave Communications is a company specializing in microwave and millimeter wave backhaul solutions. They offer high-capacity wireless solutions for backhauling data traffic between networks, enabling fast and reliable connectivity.


17. First Class Connection Corp

First Class Connection provides impactful technology solutions based on the business goals and pain points of its clients. Their services include business phone solutions, managed mobility services, and office relocation assistance.


18. AireSpring

  • Website: airespring.com
  • Headquarters: Los Angeles, California, United States
  • Founded: 2001
  • Headcount: 201-500
  • LinkedIn

AireSpring is a company that offers fully managed cloud business phone systems and network solutions. They provide reliable and high-quality communication services to businesses, with a strong focus on customer satisfaction.


19. Solaborate

  • Website: solaborate.com
  • Headquarters: Los Angeles, California, United States
  • Founded: 2011
  • Headcount: 201-500
  • Latest funding type: Series A
  • LinkedIn

Solaborate is a secure communication and collaboration platform that offers innovative solutions for individuals and businesses. With a focus on privacy and reliability, Solaborate provides users with seamless connectivity and advanced features to effectively communicate, collaborate, and share information.


20. King Technologies, Inc.

  • Website: kingtech.com
  • Headquarters: San Diego, California, United States
  • Founded: 1987
  • Headcount: 51-200
  • LinkedIn

King Technologies, Inc. is a leading provider of world-class network services to the government and commercial enterprises. With expertise in designing, testing, implementing, maintaining, and servicing Wide and Local Area Networks, we offer cost-effective solutions for integrating operational technology on networks globally. Our knowledgeable staff specializes in project management, system administration, and exceptional networking services. We enable clients to communicate, control data, and operate essential systems through our wide and local area network solutions. Contact us for installation, maintenance, and training services.


21. PSSI Global Services, LLC

  • Website: pssiglobal.com
  • Headquarters: Los Angeles, California, United States
  • Founded: 1979
  • Headcount: 51-200
  • LinkedIn

PSSI Global Services is a leading provider of satellite, fiber, and IP transport solutions. Our skilled engineers ensure seamless end-to-end service for all types of events, from 4K/UHD pay-per-view to multichannel at-home productions. We offer transmission vehicles, teleport services, and encoders to deliver your signal to your specifications. With a strong focus on customer satisfaction, we provide expertise and support for the broadcast industry worldwide.


Want to find more telecommunications companies?


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