Best Internet of Things Infrastructure Companies in San Jose, United States
The 43 best Internet of Things Infrastructure companies in San Jose, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Silver Spring Networks.
Our analysis of 50 Internet of Things Infrastructure companies
$10.3b in tracked funding; 83% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Internet of Things Infrastructure companies in San Jose
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Silver Spring Networks Provider of mesh standards-based networking platform | $436M | 161 mo ago | 5,859 | 2002 | — | — | 689 patents Smart grid communication, mesh networking, and energy‑aware routing for distributed IoT devices | — |
| 2 | GCT Semiconductor Developer of chips and modules for 4G LTE and 5G | $351M | 98 mo ago | 12 | 1998 | — | Cart FunctionalitySquarespace CommerceSquarespace+13 | 239 patents RF front‑end and baseband signal processing for OFDM wireless communication systems | 1 partnership |
| 3 | Forescout 🦄 Provider of cybersecurity solutions for continuous threat exposure management and mitigation | $120M | 49 mo ago | 1,000 | 2000 | Oded Comay Co-Founder & Chief Innovation Officer | WordPressSentryApple iCloud Mail+20 | 35 patents Network device visibility, classification, and policy-based segmentation for enterprise security | 1 launch · 1 partnership |
| 4 | Gainspan Low Energy embedded WiFi modules and chips | $87M | 139 mo ago | 3 | 2006 | — | — | 120 patents Low-power wireless mesh networking and energy-efficient video transmission protocols. | — |
| 5 | Cavendish Kinetics Manufacturer of MEMS-based RFICs | $75M | 132 mo ago | 35 | 1994 | — | — | 277 patents RF MEMS antenna tuning, impedance matching, and ESD protection solutions. | — |
| 6 | InvenSense MEMS and magnetic sensor solutions for consumer, industrial, and automotive applications | $38M | 220 mo ago | 288 288 → 682 (+137%) | 2003 | — | — | 2,221 patents Patents concentrated in transport & manufacturing processes | 1 award |
| 7 | mCube Provider of MEMS motion sensors for smart and wearable devices | $37M | 146 mo ago | 20 | 2009 | Charles Yang Founder | DartFlutterMicrosoft 365+4 | 224 patents Low‑power MEMS inertial sensors and fabrication methods for motion/vibration detection | — |
| 8 | Cassia Networks Provider of a Bluetooth router technology | $20M | 52 mo ago | 20 | 2014 | Felix Zhao Founder & CEO & President | WordPressMySQLPHP+27 | 51 patents Optimizing multi‑AP Wi‑Fi roaming and connection management for enterprise wireless networks. | — |
| 9 | InSync Software Platform to develop and deploy IoT applications | $12M | 196 mo ago | 9 | 1997 | — | — | — | — |
| 10 | Atsign Provider of data encryption solutions | $11M | 42 mo ago | 33 | 2019 | Colin Constable Co-Founder & CTO | WordPressMySQLPHP+26 | 9 patents Secure decentralized identity and authentication protocols for user data access control | 1 launch · 1 award |
| 11 | Cavli Provider of cellular IoT modules, connectivity, and modem management cloud | $10M | 40 mo ago | 86 | 2016 | Akhil Zeeb Co-Founder & Chief Product Officer | SalesforceSalesforce Service CloudNode.js+28 | — | — |
| 12 | Qulsar Precision timing and synchronization solutions for diverse industries and applications | $5M | 105 mo ago | 12 | 2010 | — | — | 13 patents Precise network timing and synchronization using hybrid and distributed boundary clocks | — |
| 13 | IoTEdge Decentralized platform for internet of things | $2M | 88 mo ago | — | 2018 | Cynthia Liu CEO | — | — | — |
| 14 | Econais Turnkey solutions provider specializing in end-to-end hardware and software development | $2M | 157 mo ago | — | 2008 | Nick Kanopoulos CEO | — | — | — |
| 15 | IPG Provider of IoT enabled industrial solutions | $550K | 72 mo ago | 4 | 2017 | Steve Kiss Founder | — | 8 patents Medical oxygen delivery devices and adhesive/film manufacturing technologies. | — |
| 16 | i Linear Inc Developer of ultra-low-power analog and mixed-signal solutions for machine learning | $253K | 47 mo ago | 2 | 2020 | — | — | 216 patents Advanced segmented rotor/stator electric motor designs and high‑performance control systems | — |
| 17 | Legato Logic Provider of AI-based low-power sensors | $105K | 59 mo ago | 2 | 2020 | Ankush Goel Co-Founder & CTO | — | — | — |
Top 12 Internet of Things Infrastructure companies in San Jose
#1
Acquired · San Jose, California · founded 2000 · 1000 employees$120.3Mraised▾
Provider of cybersecurity solutions for continuous threat exposure management and mitigation. The company offers a platform designed for asset visibility, risk prioritization, and threat detection. It delivers capabilities for network security, operational technology security, and zero trust implementation. The platform supports various use cases, including asset inventory, network access control, and security automation. Solutions cater to industries such as financial services, healthcare, and manufacturing.
- Jul 2022Post IPO$88.8M
- Dec 2019Grant (prize money)$500.5K
- Sep 2018Grant (prize money)$329.7K
- Dec 2015Series E$76M
#2
Series A · San Jose, California · founded 2016 · 86 employees$10Mraised▾
Provider of cellular IoT modules, connectivity, and modem management cloud. The company engineers modules for various network types, including 5G RedCap, LTE Cat 1, and LPWA. It offers a connectivity management platform and facilitates network access. The company focuses on enabling intelligent connectivity for IoT applications.
- Apr 2023Series A$10M
#3
Seed · San Jose, California · founded 2019 · 33 employees$11.1Mraised▾
Provider of data encryption solutions. It designs and develops edge-to-edge encryption technology for industrial applications.
- Feb 2023Seed$100K
- Jul 2021Seed$8M
#4
Series C · San Jose, California · founded 2014 · 20 employees$20.3Mraised▾
Cassia Networks provides a Bluetooth router technology. Offers a Bluetooth-based network platform that is used for home entertainment and security. The Cassia Hub is able to connect and control multiple Bluetooth enabled devices in the house, be it a light, music system, or sensors. Also offers Bluetooth routers, IoT access controller and SDK or API solutions.
- Apr 2022Series C—
- Mar 2019Series B$10M
- Oct 2016Series B$10.3M
#5
Public · San Jose, California · founded 1998 · 12 employees$350.6Mraised▾
Developer of chips and modules for 4G LTE and 5G. The company's solutions enable high-speed connectivity to commercial devices across various applications. These applications include smartphones, tablets, hotspots, routers, and IoT devices. The company's products are operator-certified.
- 2018Series H—
- Apr 2013Series F$98.9M
- Mar 2011Series F$80.3M
- Dec 2007Series F$28M
#6
Acqui-Hired · San Jose, California · founded 2006 · 3 employees$86.8Mraised▾
GainSpan is a leading low power embedded Wi-Fi solutions company focused on connecting things wirelessly to the Internet. Their embedded Wi-Fi chips and modules make it possible to quickly and easily add Wi-Fi to devices, through a serial interface to a device microcontroller. GainSpan's chip handles all Wi-Fi functionalities, networking and security stacks, accelerating wireless device development cycles. Unlike traditional Wi-Fi, GainSpan Wi-Fi is ultra low in power – so low that the SoC consumes just a few µA of standby current and has a few ms of wake-up latency -- making the products ideal for battery operated devices requiring years of battery life. The company was acquired by Telit in 2017.
- Dec 2014Conventional Debt$5M
- Jun 2013Series D$19M
- Dec 2011Series C$18M
- Oct 2011Series B$16.5M
#7
Funding Raised · San Jose, California · founded 2020 · 2 employees$252.8Kraised▾
Developer of ultra-low-power analog and mixed-signal solutions for machine learning. The company provides end-to-end solutions designed to enable distributed intelligence near sensors and devices. Offerings integrate software, algorithms, digital, and analog technologies to facilitate machine learning inference. These solutions are optimized for tiny, battery-operated devices. The technology enables applications where traditional computing infrastructure is not feasible.
- Sep 2022Grant (prize money)$252.8K
#8
Acquired · San Jose, California · founded 1994 · 35 employees$75Mraised▾
Manufacturer of MEMS-based RFICs. It designs and develops a MEMS platform that reduces the cost of incorporating MEMS components into semiconductors by eliminating expensive MEMS packaging. The company make tunable RF circuits for mobile phones, laptops, tablets. It can resolve the problem of adding more features to wireless devices, without increasing the number of radio devices or the size of the device.
- Aug 2015Series E$36M
- 2015Series D—
- Nov 2014Series D$7M
- Jun 2011Series C$10M
#9
Acquired · San Jose, California · founded 2002 · 5859 employees$436.3Mraised▾
Developer of IP-based networking products intended to modernize the city's network system. The company's products allow utilities to implement metering solutions; credit and collection programs, which reduces accounts receivable and bad debt write-offs; and demand response/dynamic pricing, enabling users to have real-time communication of current and future prices, alert levels, load control commands, and usage information.
#10
Acquired · San Jose, California · founded 2003 · 288 employees$38Mraised▾
MEMS and magnetic sensor solutions for consumer, industrial, and automotive applications. They provide sensing solutions, including MEMS motion sensors, ultrasonic Time-of-Flight sensors, MEMS microphones, and MEMS pressure sensors. These sensors cater to diverse applications like gaming, smart homes, automotive systems, industrial IoT, mobile devices, and robotics. Their offerings include development kits, software, and services to support developers. They focus on humanizing sensor technology, offering products like SmartMotion, SmartSonic, SmartSound, SmartPressure, SmartAutomotive, SmartIndustrial, and SmartRobotics. They also provide location software and services, and emphasize product longevity with extended support for select products.
- Apr 2008Series C$19M
- Jan 2007Series B$11M
- 2004Series A$8M
#11
Acquired · San Jose, California · founded 2009 · 20 employees$37Mraised▾
Provider of MEMS motion sensors for smart and wearable devices
#12
Acqui-Hired · San Jose, California · founded 1997 · 9 employees$12.4Mraised▾
InSync provides softwares applications for IoT driven applications using RFID technology. This helps in catering asset management and tracking needs of various industries. It offers the product is offered in both on-premise and cloud-hosted versions. It caters to Industrial Manufacturing, Hi-Tech, Healthcare, Energy amd Aerospace & Defense industries. It was named one of the Top 20 Innovators in the RFID industry by RFID Switchboard.
- Apr 2010Series B$200K
- Jun 2009Series B$4.7M
- Jan 2006Series A$7.5M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Internet of Things Infrastructure coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Internet of Things is moving in the United States
A read on the academic research around Internet of Things — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 5,209 United States-affiliated papers.
- Northeastern University115
- ASA College91
- Saint Joseph's College77
- Purdue University West Lafayette72
- Film Independent72
- Scalability22→265
- Wireless45→271
- Computer security23→248
- Embedded system9→159
- Wireless sensor network171→318
- Computer security9→144
- Key (lock)5→135
- Wireless37→141
- Cloud computing12→106
- Embedded system5→99
- Key (lock)16→68
- Computer security47→96
- Cloud computing14→59
- Big data9→41
- Software deployment14→39
Where iot is researched across United States
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing iot patents in the United States
United States iot patent filing is cooling — 369,375 filings from 8,000 assignees (2016–2025), led by Qualcomm, IBM, Microsoft; annual filings 39513→23806.
- Qualcomm51986
- IBM27040
- Microsoft24209
- Intel18299
- Apple15099
- Google14743
- Cisco10414
- AT & T IP I8075
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.