Best OSS & BSS Companies in California, United States
The 96 best OSS & BSS companies in California, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Plume.
Ranked: Best OSS & BSS companies in California
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Plume 🦄 Self-optimizing adaptive Wi-Fi system provider | $697M | 56 mo ago | 245 245 → 481 (+96%) | Sri Nathan Co-Founder | Apple iCloud MailGoogle WorkspaceTypeScript+21 | — | 1 award |
| 2 | Aria Cloud-based subscription billing and management solutions for businesses | $175M | 90 mo ago | 127 127 → 251 (+98%) | Brendan OBrien Co-Founder & CIO | WordPress Block EditorWordPressMySQL+27 | 59 patents Implantable vascular pressure‑reduction devices for pulmonary hypertension therapy | 1 launch |
| 3 | Guavus Cloud and AI based prescriptive network analytics solution | $158M | 129 mo ago | 29 | Alexander Shevchenko CEO | WordPressMySQLPHP+16 | 47 patents Real-time QoE measurement and optimization for 5G and hybrid networks | — |
| 4 | Matrixx Billing & Charging solutions for telecommunications | $119M | 56 mo ago | 122 | Jennifer Kyriakakis Co-Founder & CMO | WordPressMySQLPHP+32 | — | — |
| 5 | Forward Networks Developer of network modeling software delivering digital twin of the network | $116M | 40 mo ago | 72 | — | WordPressSentryApple iCloud Mail+40 | — | 1 job opening · 1 award |
| 6 | ASSIA AI-driven solutions optimizing internet performance and quality of experience | $106M | 115 mo ago | 35 | Assia Cioffi Co-Founder | — | 12 patents Patents concentrated in electrical & electronics | — |
| 7 | Stoke Security gateway solutions to the broadband network industry | $104M | 167 mo ago | 49 | — | TurbopackApple iCloud MailNode.js+11 | 22 patents Secure traffic routing and core network bypass for 3GPP LTE/5G mobile communications | — |
| 8 | Telespree Cloud-based service management platform for carriers, retailers, MVNOs, and wholesale providers | $103M | 179 mo ago | 17 | — | — | — | — |
| 9 | eero Developer of home and business mesh wifi network systems | $90M | 108 mo ago | 132 | Nate Hardison Chief Product Officer and Co-Founder | WordPressMySQLPHP+34 | 24 patents Consumer Wi‑Fi mesh networking hardware and dynamic router configuration systems | 1 partnership |
| 10 | Infoblox Provider of core network services and security for hybrid enterprises | $71M | 69 mo ago | 603 | — | WordPressApple iCloud MailMySQL+35 | 222 patents Network DNS/DHCP/IPAM security analytics and device classification for enterprise infrastructure | 1 launch · 1 award |
| 11 | Gluware Multi domain network automation and orchestration solution | $70M | 55 mo ago | 56 56 → 49 (-12%) | Jeff Gray Co-Founder & CEO | — | 10 patents Optimizing and scoring distributed network performance, configuration, and DNS firewall security | 1 launch · 1 award |
| 12 | Mobileum Telecom analytics solutions provider, securing networks and unlocking data intelligence | $59M | 216 mo ago | 63 | — | JoomlaApple iCloud MailPHP+24 | 43 patents eSIM provisioning, roaming control, fraud detection, and smart dialing for mobile networks | 2 launchs |
| 13 | Carrier iQ Mobile intelligence solutions | $55M | 192 mo ago | 60 | — | — | 15,319 patents Thermal management and HVAC systems for refrigeration, fan control, and power electronics cooling | — |
| 14 | Ceon Product management software and services | $55M | 311 mo ago | — | Ceon Ceon Managing Director | — | — | — |
| 15 | ItsOn Online casino gaming with slots, blackjack, roulette, and e-wallet integration | $53M | 126 mo ago | 140 | — | — | — | — |
| 16 | Procera Networks Network observability solutions for enhanced application experience and responsible digital rights | $46M | 205 mo ago | 69 | — | — | — | — |
| 17 | Telescent Provider of automated solutions for physical network configurations in data centers, extending… | $28M | 73 mo ago | 11 11 → 25 (+127%) | Anthony Kewitsch CEO and Chairman | Squarespace CommerceSquarespaceTypeScript+15 | 115 patents Automated high‑speed optical fiber switching and robotic cross‑connect infrastructure | 1 job opening · 1 launch |
| 18 | The Fanfare Group Network Equipment Testing Solutions | $26M | 198 mo ago | — | Kingston Duffie Founder & CTO | — | 9 patents Automated system verification via virtual testbeds and behavior‑model based test generation | — |
| 19 | Volta Networks Provider of SDN based network management solutions provider | $22M | 74 mo ago | 57 | — | — | — | — |
| 20 | Pie Digital Home network monitoring, management, and maintenance software solutions provider | $22M | 150 mo ago | — | Jeff Hansen Co-Founder | — | — | — |
| 21 | Gigs Provider of platform for telecom services | $20M | 18 mo ago | 50 | Victor De Maizière Founder's Associate | StoryblokApple iCloud MailGoogle Workspace+21 | — | — |
| 22 | Argyle Data Revenue threat analytics for mobile providers | $20M | 140 mo ago | 26 | — | — | — | — |
| 23 | Sedona Systems Real time network layer monitoring | $20M | 118 mo ago | 43 | — | — | — | — |
| 24 | Pronto Networks WLAN B/OSS solutions provider | $16M | 268 mo ago | 146 | Jasbir Singh Founder and Chairman | WordPressMySQLPHP+30 | — | 1 launch |
| 25 | RF CHECK RF safety and compliance solution | $16M | 66 mo ago | — | Drew Fountain Co-Founder | — | 32 patents RF safety monitoring/compliance systems for distributed antenna/5G sites and temperature-controlled portable containers | — |
| 26 | Communicado Network management and analysis solutions provider | $16M | 226 mo ago | 40 | Kerry Shih Founder | — | — | — |
| 27 | OpenSignal Develops apps related to network connection and wireless signal coverage | $14M | 92 mo ago | 6 | Charles Rutstein Chairman and CEO | HubSpot CMS HubApple iCloud MailGoogle Workspace+27 | — | — |
| 28 | Saisei Network Performance Enforcement Solutions | $12M | 127 mo ago | 15 | Bill Beckett CSO & Founder | — | — | — |
| 29 | Aervivo Provider of platform as a service for fiber-grade connectivity 19Moat top 38%Patents top 46%Funding top 48%Innovation bottom 49% All 7 signals ▾Moattop 38% Patentstop 46% Fundingtop 48% Innovationbottom 49% Talentbottom 49% Globalbottom 37% Marketbottom 21% Moat: Editorial + unicorn rating 7/10 · IP moat: 5 patents Patents: 5 patents matched (strict assignee match) · 4 filings since 2022 vs 1 in 2017-21 rank vs industry peers · Fliar Intelligence Index 19/100 | $10M | 10 mo ago | 13 13 → 24 (+85%) | Mike Hart CEO & Founder | — | 5 patents Modular millimeter‑wave mesh radio hardware and distributed data‑center infrastructure. | 1 expansion |
| 30 | LotusFlare End-to-end OSS BSS solutions for MNOs MVNOs 40News top 24%Tech top 30%Moat top 37%Talent top 38% All 13 signals ▾Newstop 24% Techtop 30% Moattop 37% Talenttop 38% Customerstop 40% Growthtop 45% Fundingtop 47% Productbottom 48% Globalbottom 44% Partnersbottom 43% Innovationbottom 37% Patentsbottom 34% Marketbottom 29% News: 6 BI events in 12 mo (of 8 tracked, 4 types) · 5 high-value events (IPO/M&A/funding/contracts) in 12 mo Tech: 48 technologies across 5/8 capability areas · Cloud: Amazon Ses, Amazon Web Services rank vs industry peers · Fliar Intelligence Index 40/100 | $10M | 6 mo ago | 17 | Terry Guo President & Co-founder & Product | WordPressMySQLPHP+27 | 7 patents Mobile data traffic shaping and multi‑network orchestration for cellular applications | 2 job openings · 1 launch · 1 partnership |
| 31 | Kabira Technologies Convergent transaction processing and OSS/BSS solutions provider | $6M | 198 mo ago | 90 | Paul Sutton CEO | — | 12 patents Integrated transaction management within Java virtual machines for enterprise application processing | — |
| 32 | Emida Technologies Provider of deployment of products & services through our electronic sales network & channel management… | $5M | 265 mo ago | 37 | Bob Pevenstein Co-Founder | WordPressMySQLPHP+17 | — | — |
| 33 | nuPSYS Visualizing and automating infrastructure management for IoT, data centers, and networks | $5M | — | 23 | Reza Ahy CEO & President | — | — | — |
| 34 | Inflect Internet infrastructure marketplace | $3M | 102 mo ago | 33 | — | SentryZendeskNode.js+25 | 4 patents Optimizing routing and pathfinding algorithms for communication network infrastructures. | — |
| 35 | Ignition Design Labs WiFi network management solutions provider | $3M | 101 mo ago | — | — | — | — | — |
| 36 | Vysr Developer of browser plug-in for web browsers | $2M | 218 mo ago | — | Guda Venkatesh Founder & CEO | — | — | — |
| 37 | Packet Island Cloud-based VoIP network monitoring solutions provider | $2M | 240 mo ago | 5 | Michael Tessler CEO | — | — | — |
| 38 | EveryLayer Provides cost effective broadband deployment solutions in emerging countries | $650K | 142 mo ago | 6 | — | — | — | — |
| 39 | Shoelace Mobile app for aggregating multiple wireless network available to single or multiple devices | $450K | 70 mo ago | 17 | Jim Mains CEO | — | — | — |
| 40 | inFocus Networks Developer of photonic technologies enabling networked systems to scale unimpeded | $225K | 88 mo ago | — | Max Mellette ex-Co-Founder & CEO | — | — | — |
| 41 | Ready Cloud-based operation support system for ISPs | $150K | 69 mo ago | 46 | Mike Faloon Founder & COO | — | 8 patents Rotary metal bending/forming machinery for construction and structural component manufacturing | 2 launchs |
| 42 | Cape Networks Edge-to-cloud solutions provider, empowering businesses with technology and services | $50K | 122 mo ago | 11 | — | BootstrapReactReact Router+10 | — | — |
| 43 | Viavi Provider of network test, monitoring, assurance, and optical technology solutions | — | 29 mo ago | — | Oleg Khaykin President & CEO | Cart FunctionalityWooCommerceWordPress+43 | — | — |
Top 12 OSS & BSS companies in California
#1
Series A · Palo Alto, California · founded 2013 · 17 employees$10Mraised▾
End-to-end OSS BSS solutions for MNOs MVNOs. Its offerings include Dynamic Rating Platform - a cloud-based platform integrated with carriers or operators or OTT or app providers to allow users to share data and enable operators to offer app-based data plans, Digital Services Platform - to design, develop and launch digital services, Growth Platform to drive user acquisition, engagement, and monetization, and DataEye - a mobile application which allows mobile phone users to measure which app is using how much data so as to control the data usage on app basis. It is also planning to develop a platform to improve internet access in emerging markets, which will function as a middle layer between technology and mobile network.
- Dec 2025Series A—
- Oct 2018Series A—
- Sep 2015Series A$6M
- 2014Seed$4M
#2
Seed · San Jose, California · founded 2020 · 13 employees$10.3Mraised▾
Provider of platform as a service for fiber-grade connectivity. They offer cloud solutions that enable customers to scale and manage hybrid networks.
- Aug 2025Seed$2.2M
- Aug 2023Seed$1.5M
- Jun 2022Seed$3M
- Mar 2021Seed$5.8M
#3
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
#4
Plume 🦄Series F · Palo Alto, California · founded 2015 · 245 employees$697Mraised▾
Self-optimizing adaptive Wi-Fi system provider. It uses a patented allocation system and adapts in real time to the devices and applications. The Pods connect wirelessly without using ethernet over the power line for communication.
- Oct 2021Series F$300M
- Feb 2021Series E$270M
- Feb 2020Conventional Debt$25M
- Feb 2020Series D$77.9M
#5
Series D · Los Altos, California · founded 2013 · 72 employees$116Mraised▾
Developer of network modeling software delivering digital twin of the network. The software provides vulnerability management, attack surface management, and security posture through a digital twin model. It also delivers end-to-end visibility, service assurance and continuous auditing across cloud estates. The platform collects and organizes network data to make it useful and actionable.
- Jan 2023Series D$50M
- Oct 2019Series C$35M
- Feb 2017Series B$16M
- Nov 2014Series A$11.1M
#6
Series D · Mountain View, California · founded 2008 · 122 employees$119.1Mraised▾
Billing & Charging solutions for telecommunications. Its platform includes features to provide convergent charging capabilities with tools to create flexible plans for customers for both MNOs and MVNOs. Other features include dynamic price sharing, app-based pricing, and virtual network enablement from host MNOs.
- Oct 2021Series D$50M
- Jun 2018Series C$40M
- Mar 2016Series C$5M
- May 2014Series C—
#7
Acquired · Sacramento, California · founded 2007 · 56 employees$70.5Mraised▾
Multi domain network automation and orchestration solution. It allows automation of the process of network lifecycle management. Their network orchestration engine enables software defined networking from a data center to LAN and WAN. Currently powers mission-critical networks of blue chip enterprises and managed service providers.
- Oct 2021Series B$43M
- Dec 2013Series A$12.4M
- Oct 2012Series A$1.6M
- Mar 2011Series A$9M
#8
Series F · San Francisco, California · founded 2003 · 127 employees$175Mraised▾
Cloud-based subscription billing and management solutions for businesses. It provides software for automating account management, recurring revenue stream, billing, invoicing, dunning, collections, product management, billables of pending accounts, and among others. It operates in the media, communication, industrial, technology, automotive, and other sectors.
- Dec 2018Series F$30M
- Sep 2017Series E$18M
- Feb 2016Series E$50M
- Nov 2013Series D$40M
#9
Acquired · San Jose, California · founded 2006 · 29 employees$157.9Mraised▾
Guavus is a cloud and AI based prescriptive network analytics solution. It provides a platform that enables decision-making for network operations, marketing, customer care. The features of the software include real time record analysis, network fault analytics, optimization of alarm suppression rates, etc. The companies data analysis offering is used by telecommunications providers to give insights on network performance, device and application usage, content, and subscriber behavior to optimize network capacity and increase revenues.
- Sep 2015Series E—
- Jun 2015Series E$50.9M
- Aug 2014Series D$20M
- Jul 2013Series C$1.5M
#10
Series C · Redwood City, California · founded 2003 · 35 employees$106Mraised▾
AI-driven solutions optimizing internet performance and quality of experience. The company develops and licenses innovative technologies for telecommunications providers globally. Their AI solutions enhance internet connections by optimizing infrastructure performance, whether it's copper, fiber, Wi-Fi, or 5G. The technology improves operational efficiencies and enables delivery of multimedia content. Internet users benefit from enhanced Quality of Experience at an affordable cost. Developing countries gain access to the connected world, regardless of infrastructure limitations. The company focuses on big data analytics, adaptive optimization, and reinforcement learning. It is a B2B tech company offering software solutions to improve internet access and customer retention.
- Nov 2016Series C$30M
- Mar 2013Series C$25M
- Oct 2012Series B$7M
- Nov 2011Series B$13.2M
#11
Acquired · Santa Clara, California · founded 1999 · 603 employees$71Mraised▾
Provider of core network services and security for hybrid enterprises. The company delivers solutions for DNS, DHCP, and IP address management across cloud and on-premises environments. It offers threat defense, advanced automation, and certified integrations for operational efficiency. The company helps modernize network infrastructure to be more agile and scalable.
- Sep 2020Post IPO—
- Nov 2006Series F—
- Apr 2005Series E$30M
- Feb 2004Series D$21M
#12
Acquired · Santa Clara, California · founded 2004 · 49 employees$104Mraised▾
Stoke is a provider of LTE security gateway solutions. It provides an overview of the entire LTE infrastructure threat surface, with a reference point for LTE security design with a focus on key points of vulnerability in LTE networks. The areas of security focus are core to Internet security, radio access network (RAN) to core security, device and application security, IMS security, and Policy and Charging Control protection.
- Jul 2012Series E$5M
- Jan 2011Series E$17M
- Nov 2010Series D$16M
- Apr 2009Series D$15M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of OSS & BSS coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.