Best Telecom Infrastructure Tech Companies in California, United States
The 304 best Telecom Infrastructure Tech companies in California, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Lumentum.
Ranked: Best Telecom Infrastructure Tech companies in California
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Lumentum Manufacturer of lasers and optical communication products 82Market top 22%Fin. health top 24%Funding top 26%Partners top 31% All 9 signals ▾Markettop 22% Fin. healthtop 24% Fundingtop 26% Partnerstop 31% Newstop 33% Techtop 35% Globaltop 44% Growthtop 50% Moatbottom 38% Market: 7,500 employees (top 5% of Telecom) · Revenue ~$1.6B Fin. health: Revenue ~$1.6B (FY2012) · Net margin 7.8% rank vs industry peers · Fliar Intelligence Index 82/100 | $2.9B | 3 mo ago | 7,500 | — | TurbopackApple iCloud MailNode.js+20 | — | 1 expansion |
| 2 | Netskope 🦄 Cloud security platform for enterprises 84Patents top 15%Tech top 22%News top 22%Global top 27% All 14 signals ▾Patentstop 15% Techtop 22% Newstop 22% Globaltop 27% Fundingtop 28% Markettop 31% Talenttop 33% Innovationtop 35% Producttop 35% Moattop 36% Growthtop 39% Fin. healthtop 39% AItop 45% Customerstop 48% Patents: 506 patents matched (strict assignee match) · 361 filings since 2022 vs 134 in 2017-21 Tech: 67 technologies across 7/8 capability areas · Cloud: Amazon Cloudfront, Amazon S3 rank vs industry peers · Fliar Intelligence Index 84/100 | $1.4B | 41 mo ago | 1,542 1,542 → 3,395 (+120%) | Krishna Narayanaswamy Founder & CTO | WordPressSentryAlgolia+39 | 506 patents Patents concentrated in electrical & electronics | — |
| 3 | BayPackets IP multimedia platform provider | $694M | 118 mo ago | 1,600 | Sanjeev Chawla ex - CTO and Founder | — | 569 patents Virtualized telecom network functions, signaling, and codec optimization for high‑availability communications | — |
| 4 | Calient Innovating photonic optical circuit switching solutions for high-bandwidth, flexible networks | $464M | 82 mo ago | 10 | Arjun Gupta Chief Executive Officer | WordPress Block EditorWordPressMySQL+19 | 51 patents MEMS optical switching and micro‑mirror arrays with precision motion control | — |
| 5 | Tarana 🦄 Non-line-of-sight wireless transport solutions | $426M | 33 mo ago | 185 | Omar Bakr Co-Founder | WordPressMySQLPHP+29 | — | — |
| 6 | Versa Networks Provider of secure access service edge (SASE) and SD-WAN solutions | $316M | 43 mo ago | — | Apurva Mehta Co-Founder & CTO | Cart FunctionalityWooCommerceWordPress+37 | 85 patents Secure networking: SASE connectivity, tunnel‑less SD‑WAN flow handling, cloud security, and remote browser isolation. | — |
| 7 | Silver Peak Cloud-based SD-WAN solutions provider | $251M | 85 mo ago | 26 | — | — | 120 patents SD-WAN overlay, policy‑based packet processing, traffic steering, and network optimization | — |
| 8 | Infinera 🦄 Provider of networking, infrastructure, and communications solutions across various industries | $235M | 30 mo ago | 1,314 | David Welch Founder | — | 1,459 patents Coherent optical transport, DWDM, Raman amplification, and advanced signal processing for fiber networks | — |
| 9 | Source Photonics Manufacturer of optical transceivers, components, and subsystems for data and telecommunications | $230M | 30 mo ago | 4,000 | — | WordPressMySQLPHP+18 | 56 patents Integrated photonic components for optical communication: modulators, transmitters, phase shifters, WDM systems | — |
| 10 | Iboss Cloud-based converged network security provider | $230M | 65 mo ago | 235 | Peter Martini Co-Founder & President | WordPressSentryMySQL+29 | 330 patents Secure remote browser isolation and cloud network security via proxy-based threat detection | — |
| 11 | Barefoot Networks High-speed programmable switches | $225M | 93 mo ago | 164 | — | — | 262 patents Programmable data‑plane switching with stateful packet processing and key‑value lookups | — |
| 12 | Nova Labs Network providing decentralized wireless connectivity solutions powered by blockchain technology | $200M | 50 mo ago | 100 | — | Node.jsSalesforceEmotion+8 | — | — |
| 13 | 2Wire Network equipment provider | $200M | 282 mo ago | 1,600 | Brian Hinman Co-Founder & ex - CEO | — | 162 patents Broadband access hardware: multi‑band line interfaces, DSL modems, network control and power management | — |
| 14 | Aryaka Provider of unified secure access service edge and software-defined wide area network | $192M | 85 mo ago | 201 | — | WordPressSentryApple iCloud Mail+32 | — | 1 award |
| 15 | Alkira Provider of cloud networking solution and network wide unification | $192M | 25 mo ago | 75 75 → 187 (+149%) | Amir K President & CEO / Founder | WordPressMySQLPHP+30 | 38 patents Enables multi-tenant cloud networking with programmable VPN routing, segmentation, and resource allocation | — |
| 16 | Movaz Networks Domain marketplace facilitating secure transactions with buyer protection and flexible payments | $171M | 244 mo ago | 250 | — | — | — | — |
| 17 | Actelis Provider of networking solutions for intelligent traffic, rail, and city systems 32Partners top 15%Funding top 29%News top 33%Tech top 34% All 10 signals ▾Partnerstop 15% Fundingtop 29% Newstop 33% Techtop 34% Talenttop 45% Moattop 48% Growthbottom 39% Globalbottom 39% Marketbottom 33% Fin. healthbottom 29% Partners: 12 contract events in 12 mo · Named contractor/client in 12 deals Funding: Raised $162M across 17 rounds · 17 rounds over 27 yrs (0.6/yr) rank vs industry peers · Fliar Intelligence Index 32/100 | $162M | 8 mo ago | 12 | Yoav Efron Deputy CEO | WordPressPleskMySQL+35 | — | 1 partnership |
| 18 | Aperto Networks WiMax Equipment Manufacturer | $154M | 196 mo ago | 70 | — | — | — | — |
| 19 | Meter 🦄 Provider of enterprise internet infrastructure, including hardware, software, and network management tools 62Funding top 28%News top 35%Innovation top 36%Tech top 36% All 11 signals ▾Fundingtop 28% Newstop 35% Innovationtop 36% Techtop 36% Growthtop 37% Patentstop 39% Moattop 43% Partnerstop 45% Talentbottom 49% Marketbottom 47% Globalbottom 36% Funding: Raised $145M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) News: 3 BI events in 12 mo (of 6 tracked, 3 types) · +200% YoY rank vs industry peers · Fliar Intelligence Index 62/100 | $145M | 12 mo ago | 65 | Anil Varanasi CEO | Apple iCloud MailGoogle WorkspaceNode.js+23 | 11 patents Patents concentrated in computing, sensing & instrumentation | 2 partnerships · 3 awards |
| 20 | Pluribus Networks Cloud & software-defined networks OS for data centers | $145M | 56 mo ago | 133 | C Yang Co-Founder | Apple iCloud MailGoogle WorkspaceSalesforce+5 | 43 patents Distributed network operating system and fabric switching for data center networking | — |
| 21 | Terawave Communications Provides GPON based products | $143M | 278 mo ago | — | Ray Lin CEO | — | — | — |
| 22 | SpiderCloud Scalable Multi-Access Small Cell Systems | $136M | 126 mo ago | 100 | — | — | — | — |
| 23 | Qwilt Developer of an open caching and video delivery platform at the mobile edge | $135M | 56 mo ago | 11 | Alon Maor Co-Founder & CEO | — | 27 patents Edge caching and multicast delivery for high‑availability video streaming | — |
| 24 | Celona Cloud-based wifi infrastructure connectivity management software provider 67Innovation top 18%Tech top 20%Patents top 21%Moat top 26% All 11 signals ▾Innovationtop 18% Techtop 20% Patentstop 21% Moattop 26% Fundingtop 28% Talenttop 28% Newstop 31% Producttop 45% Marketbottom 47% Globalbottom 42% Growthbottom 35% Innovation: 183 patents (top 12% of patent-holders) · 155 filings since 2022 vs 28 in 2017-21 Tech: 55 technologies across 6/8 capability areas · Cloud: Amazon Cloudfront, Amazon Ses rank vs industry peers · Fliar Intelligence Index 67/100 | $135M | 28 mo ago | 110 | Ravi Mulam Co-Founder | WebflowApple iCloud MailSalesforce+37 | 183 patents Enterprise private cellular network slicing, credential management, and dynamic network optimization. | 1 launch |
| 25 | Cohere Provider of wireless telecommunication infrastructures | $130M | 40 mo ago | 28 | Ronny Hadani Co-Founder | WordPressApple iCloud MailMicrosoft 365+27 | — | — |
| 26 | Cumulus Networks AI and accelerated computing solutions, from cloud services to networking | $129M | 100 mo ago | 134 | — | — | — | — |
| 27 | EdgeQ Provider of software-customizable and programmable solution for IoT applications | $126M | 38 mo ago | 20 | Vinay Ravuri Founder & CEO | Animate.cssAmazon Web ServicesGSAP+21 | 77 patents Integrated baseband processing, AI acceleration, and multi‑RAT multiplexing using compute‑in‑memory | — |
| 28 | Big Switch Networks Cloud-based software defined network control fabric solutions provider | $126M | 107 mo ago | 130 | — | — | 100 patents Software-defined data center networking, virtual switching, and traffic monitoring solutions. | — |
| 29 | Loon Developer of stratospheric balloons designed to provide internet connectivity services | $125M | 85 mo ago | — | Alastair Westgarth CEO | — | 352 patents High‑altitude balloon broadband communications, networking, and related sensor/launch technologies. | — |
| 30 | CloudGenix Provider of Software-defined WAN solution | $99M | 86 mo ago | 135 | — | — | 33 patents Policy-driven SD-WAN traffic isolation, monitoring, and bandwidth prediction for enterprise networks | — |
| 31 | Graphiant Provider of software-based connectivity solutions for data management and network infrastructure 37Moat top 37%Talent top 38%Funding top 41%Patents top 45% All 9 signals ▾Moattop 37% Talenttop 38% Fundingtop 41% Patentstop 45% Innovationtop 47% Techbottom 46% Globalbottom 39% Marketbottom 36% Newsbottom 18% Moat: Editorial + unicorn rating 7/10 · IP moat: 8 patents Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 37/100 | $96M | 13 mo ago | 99 | Stefan Olofsson Founder & CTO | WebflowApple iCloud MailMicrosoft 365+24 | 8 patents Patents concentrated in electrical & electronics | — |
| 32 | Zenlayer Provider of distributed cloud infrastructure, networking, and connectivity solutions | $90M | 53 mo ago | 67 | Joe Zhu Founder / CEO | WordPressApple iCloud MailMicrosoft 365+32 | — | 1 launch · 1 award |
| 33 | Movandi 5G antenna solutions with beamforming technology 42Product top 21%Moat top 26%Funding top 32%Innovation top 33% All 10 signals ▾Producttop 21% Moattop 26% Fundingtop 32% Innovationtop 33% Patentstop 33% Talenttop 38% Newsbottom 45% Globalbottom 42% Marketbottom 34% Techbottom 31% Product: 7 distinct product lines · Company stage: Series D Moat: Editorial + unicorn rating 8/10 · IP moat: 229 patents rank vs industry peers · Fliar Intelligence Index 42/100 | $69M | 9 mo ago | 56 | Maryam Rofougaran CEO | ContentstackWordPressMySQL+23 | 229 patents 5G mmWave phased‑array antenna systems, beamforming and repeater technologies for RF communication | 1 partnership · 1 award |
| 34 | Isovalent Provider of open source networking systems | $69M | 45 mo ago | 137 | Thomas Graf CTO & Co-Founder Isovalent | SanitySentryZendesk+31 | — | — |
| 35 | TiBit Communications Global leader in high-speed connectivity, networking systems, software, and services | $69M | 47 mo ago | 47 | — | — | — | — |
| 36 | Dali Wireless SDN-based router and virtual RAN fronthaul solutions provider | $68M | 74 mo ago | 32 | Shawn Stapleton Co-Founder | — | 125 patents Patents concentrated in electrical & electronics | — |
| 37 | Inseego Provider of an IoT networking hardware and device management platform | $64M | 75 mo ago | 345 345 → 420 (+22%) | Dan Mondor CEO | DrupalApple iCloud MailPHP+28 | 27 patents 5G fixed wireless access hardware, hotspot devices, and dual‑SIM provisioning solutions | 2 launchs |
| 38 | PacketFabric Software controlled interconnection network services | $62M | 64 mo ago | 147 | — | WordPress Block EditorWordPressMySQL+27 | 14 patents Patents concentrated in electrical & electronics | 1 job opening |
| 39 | Kumu Networks Spectrum efficiency using full-duplex technology | $46M | 62 mo ago | 27 | David Cutrer Chief Executive Officer | — | 189 patents Self-interference cancellation and filter enhancement for full‑duplex wireless communication systems | — |
| 40 | Metawave Wireless antennas provider | $43M | 48 mo ago | 28 | Maha Achour Co-Founder & CEO | — | 345 patents Patents concentrated in computing, sensing & instrumentation | — |
| 41 | Expeto Cloud based platform offering NFV enabled EPC network | $26M | 42 mo ago | 38 | Ryley MacKenzie Co-Founder & CEO | WordPressMySQLPHP+28 | — | — |
| 42 | Highway 9 Provider of a cloud native platform for enterprise mobile users and AI | $25M | 27 mo ago | — | Debashis Basak Chief Technology Officer & Co-Founder | WordPressMySQLPHP+32 | — | — |
| 43 | Cloudbrink Provider of home internet and cellular connection services | $25M | 43 mo ago | 22 22 → 42 (+91%) | — | WordPressMySQLPHP+31 | 10 patents Optimizing overlay networks and TCP transport for cloud storage and data mesh caching | — |
| 44 | Farcast Developer of flat panel antennas for satellite communication user terminals 11Funding top 41%Talent bottom 49%Patents bottom 44%Global bottom 42% All 7 signals ▾Fundingtop 41% Talentbottom 49% Patentsbottom 44% Globalbottom 42% Innovationbottom 30% Marketbottom 25% Techbottom 24% Funding: Raised $22.6M across 3 rounds · 3 rounds over 4 yrs (0.8/yr) Talent: 1 named leader on record · 1 C-suite/founder profile curated rank vs industry peers · Fliar Intelligence Index 11/100 | $23M | 7 mo ago | — | Siamak Ebadi Founder & CEO | Cart FunctionalitySquarespace CommerceSquarespace+10 | 2 patents Patents concentrated in electrical & electronics | — |
| 45 | Mixed-Signal Devices Provider of digitally assisted mixed signal RF components | $21M | 24 mo ago | 10 | Avi Madisetti Co-Founder & CEO | — | 39 patents Mixed-signal ICs for precise clock/phase generation, RF synthesis, and DAC/ADC linearization | — |
| 46 | Gigs Provider of platform for telecom services | $20M | 18 mo ago | 50 | Victor De Maizière Founder's Associate | StoryblokApple iCloud MailGoogle Workspace+21 | — | — |
| 47 | ZeroTier Creation of flat Virtual Networks | $16M | 22 mo ago | 16 16 → 32 (+100%) | Andrew Gault CEO | WordPressMySQLPHP+31 | — | 1 job opening · 2 launchs · 1 award |
| 48 | Dawn Internet Network enabling users to share Internet capacity and earn rewards 64Growth top 20%Talent top 38%Funding top 45%Tech top 46% All 6 signals ▾Growthtop 20% Talenttop 38% Fundingtop 45% Techtop 46% Markettop 47% Globalbottom 33% Growth: Web rank 5,000,000 → 500,000 YoY · Fresh capital in last 24 mo Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 64/100 | $13M | 5 mo ago | — | Neil Chatterjee Co-Founder & CEO | ShopifyRemixReact Router+10 | — | — |
| 49 | Roamless Mobile application offering mobile connectivity solutions for travelers 55Talent top 28%Growth top 30%Tech top 41%News top 44% All 9 signals ▾Talenttop 28% Growthtop 30% Techtop 41% Newstop 44% Fundingbottom 49% Productbottom 48% Customersbottom 48% Marketbottom 43% Globalbottom 39% Talent: 3 named leaders on record · 3 C-suite/founder profiles curated Growth: Web rank 500,000 → 1,000,000 YoY · App-install growth +139% YoY rank vs industry peers · Fliar Intelligence Index 55/100 | $8M | 6 mo ago | — | Asim Alp Co-Founder & CTO | Node.jsFacebook LoginGoogle Sign-in+18 | — | 2 launchs |
| 50 | Zenith Aerospace Manufacturer of solar-powered aircraft | $3M | 26 mo ago | 10 | Yitao Zhuang Co-Founder | WixSentryEnvoy+11 | — | — |
Top 12 Telecom Infrastructure Tech companies in California
#1
Public · Milpitas, California · founded 2015 · 7500 employees$2.9Braised▾
Manufacturer of lasers and optical communication products. Its product portfolio includes components for optical communication, commercial lasers, and diode lasers. The component of optical communication includes DWDM, transceivers, SDN element, ROADMs, amplifiers, passive components, pump lasers, and submarine components. Its portfolio of commercial lasers includes Q-Switched lasers and low-power CW lasers. It also offers edge-emitting diode lasers, fiber-coupled diode lasers, and VCSELs.
- Mar 2026Post IPO$2B
- Dec 2019Post IPO$900M
#2
Public · Fremont, California · founded 1998 · 12 employees$162.5Mraised▾
Provider of networking solutions for intelligent traffic, rail, and city systems. The company delivers connectivity for apartments, businesses, and residential broadband. It offers backhaul services integrating industry, IoT, city, and campus Wi-Fi. Product offerings include Ethernet switches, fiber optic switches, and power over Ethernet switches. The company provides cybersecurity, broadband amplifiers, repeaters, and enclosures. Its technology includes fiber optics, G.fast, G.hn, G.SHDSL, and VDSL2. The company offers Ethernet networking, carrier Ethernet, and cybersecurity solutions.
- Sep 2025Post IPO$850K
- Sep 2025Post IPO$2.5M
- Jun 2025Post IPO$1M
- May 2023Post IPO—
#3
Series D · Irvine, California · founded 2016 · 56 employees$69.1Mraised▾
5G antenna solutions with beamforming technology. The company has developed BeamX technology, an RF front-end system solution to improve the performance of the 5G networks and other multi-gigabit networks. It provides a 5G millimeter wave solution that integrates RF, antenna, beamforming, and control algorithms for Customer Premises Equipment, small cell, and base station applications. Its use cases include content delivery across mobile platforms, virtual and augmented reality services, massive Internet of Things, mission-critical vehicle-to-vehicle, and other industrial applications.
- Sep 2025Series D$41.2M
- Apr 2020Series C$29.6M
- Jan 2019Series B$11M
- Mar 2018Series B$19.5M
#4
Meter 🦄Series C · San Francisco, California · founded 2015 · 65 employees$145.1Mraised▾
Provider of enterprise internet infrastructure, including hardware, software, and network management tools. It designs, manufactures, and installs network hardware, including security appliances, switches, access points, and power distribution units. The company offers software for network management, security, visibility, and control. It provides installation, support, and lifecycle management services through its team and partner network. The company's solutions cater to companies of various sizes, offering scalability for multi-site management and numerous devices.
- Jun 2025Series C$170M
- Feb 2024Series B$35M
- May 2022Series B$38M
- Sep 2021Series B$72.1M
#5
Series A · San Francisco, California · founded 2019$22.6Mraised▾
Developer of flat panel antennas for satellite communication user terminals. The company builds active electronically scanned antennas designed to reduce size, weight, power, and cost. The technology supports fixed satellite and moving satellite applications. The antennas compensate for movement of satellites and users through electronic beamscanning.
- Nov 2025Series A$5M
- Apr 2025Series A$2M
- Dec 2022Series A$15.6M
#6
Series B · San Francisco, California · founded 2020$13Mraised▾
Network enabling users to share Internet capacity and earn rewards. It combines protocol and hardware to build a system for user-owned connectivity. The network provides a validator extension and deployer network. It also offers a device that powers decentralized projects.
- Dec 2025Series B$13M
#7
Series B · San Jose, California · founded 2020 · 99 employees$96Mraised▾
Provider of software-based connectivity solutions for data management and network infrastructure. The company delivers network solutions for cloud, SaaS, B2B, branch networking, and AI. It offers tools for data assurance, security, and compliance management. The company’s solutions aim to simplify network infrastructure, ensuring speed and agility for data capitalization.
- May 2025Series B$19M
- Mar 2023Series B$62M
- Dec 2020Series A$33.5M
#8
Series A · San Francisco, California · founded 2023$7.6Mraised▾
Mobile application offering mobile connectivity solutions for travelers. It provides local SIM cards and offers prices mobile internet data for global travelers & digital nomads. Available on both Android and iOS devices.
#9
Series B · San Francisco, California · founded 2020 · 50 employees$20.1Mraised▾
Provider of platform for telecom services. It has an API and white-label product that allows businesses and brands to offer fully-fledged phone plans on any network globally. It offers a suite of products such as payments and analytics.
- Dec 2024Series B$73M
- Sep 2022Series A$20M
- Sep 2022Conventional Debt$4M
- 2021Seed$125K
#10
Netskope 🦄Public · Santa Clara, California · founded 2012 · 1542 employees$1.4Braised▾
Cloud security platform for enterprises. It is a security platform that provides cloud, data, and network security solutions. The platform assists organizations to provide visibility into activities over cloud, web, and private applications. The solutions includes data loss prevention, remote browser isolation, an cloud firewall, and many more.
- Jan 2023Series I$401M
- Jul 2021Series H$300M
- Feb 2020Series G$340M
- Nov 2018Series F$168.7M
#11
Acquired · San Jose, California · founded 2018 · 75 employees$192Mraised▾
Provider of cloud networking solution and network wide unification. The platform allows users to connect various networks, sites, and clouds, while also providing network solutions and resiliency. The businesses can streamline the multi cloud network provisioning process and gain visibility across the network infrastructure.
- May 2024Series C$100M
- Aug 2022Series B—
- Oct 2020Series B$54M
- Apr 2020Series A$30M
#12
Infinera 🦄Acquired · Sunnyvale, California · founded 2000 · 1314 employees$234.9Mraised▾
Provider of networking, infrastructure, and communications solutions across various industries. The company delivers network solutions, including optical, data center, and security options. It offers services, such as network design, deployment, and operation, across mobile, fixed, and transport networks. The company provides resources like documentation, training, and support for its offerings.
- Nov 2023Grant (prize money)$14M
- Aug 2022Post IPO$325M
- Nov 2021Grant (prize money)$695.7K
- Jan 2021Grant (prize money)$392.7K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Telecom Infrastructure Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on 5G 6G in California is moving
A read on the academic research around 5G 6G in California — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 874 papers.
UC Irvine, UC San Diego, and USC lead California's optimistic 5G/6G research, dominated by Advanced MIMO Systems and Millimeter-Wave Propagation, with breakthroughs outpacing concerns 12-to-1.
- University of California, Irvine154
- University of California, San Diego124
- University of Southern California104
- University of California San Diego96
- University of California, Los Angeles87
- Beamforming65→151
- Telecommunications2→32
- Phased array9→35
- Electronic engineering13→37
- MIMO43→60
- Beamforming90→115
- Telecommunications3→23
- Electronic engineering14→32
- Antenna (radio)5→13
- Base station6→12
- Beamforming23
- MIMO8
- Electronic engineering7
- Acoustics4
- Bandwidth (computing)4