# Top 27 Semiconductors Startups in San Jose by Funding (2026)

> The 27 best-funded semiconductors startups in San Jose, ranked by total funding raised: $5.2B combined.

Source: https://millionrounds.com/top-lists/semiconductors-startups-san-jose (Millionrounds; every figure on the page links to its filing or article)

- 1 [**Etched** Etched is a technology company that has developed Sohu, the world’s first specialized chip (ASIC) designed specifically for transformer inference.](https://millionrounds.com/company/etched) Etched is a technology company that has developed Sohu, the world’s first specialized chip (ASIC) designed specifically for transformer inference. *Founded* 2022 San Jose, United States **$1.0B** last round Aug 2026
- 2 [**Ayar Labs** Ayar Labs is a semiconductor company focused on transforming AI infrastructure through high-speed, light-based optical I/O solutions.](https://millionrounds.com/company/ayar-labs) Ayar Labs is a semiconductor company focused on transforming AI infrastructure through high-speed, light-based optical I/O solutions. *Founded* 2015 San Jose, United States **$904M** last round Oct 2026
- 3 [**Lumilens** Lumilens addresses the red hot market for AI data center infrastructure by designing, manufacturing and selling photonic interconnect solutions.](https://millionrounds.com/company/lumilens) Lumilens addresses the red hot market for AI data center infrastructure by designing, manufacturing and selling photonic interconnect solutions. *Founded* 2024 San Jose, United States **$709M** last round Aug 2026
- 4 [**Etched AI** Etch believes in improving people's lives through the power of mobile technology.](https://millionrounds.com/company/etched-ai) Etch believes in improving people's lives through the power of mobile technology. *Founded* 2011 San Jose, United States **$500M** last round Jan 2026
- 5 [**Silicor Materials** Silicor Materials engages in manufacturing and supplying polysilicon for solar cell production.](https://millionrounds.com/company/silicor-materials) Silicor Materials engages in manufacturing and supplying polysilicon for solar cell production. *Founded* 2006 San Jose, United States **$345M** last round Sept 2015
- 6 [**Quantenna Communications** Quantenna specializes in providing Wi-Fi solutions.](https://millionrounds.com/company/quantenna-communications) Quantenna specializes in providing Wi-Fi solutions. *Founded* 2006 San Jose, United States **$270M** last round Dec 2014
- 7 [**SiMa.ai** SiMa.ai is a leader in Physical AI, offering a software-centric, purpose-built Machine Learning System-on-Chip (MLSoC) platform.](https://millionrounds.com/company/sima-ai) SiMa.ai is a leader in Physical AI, offering a software-centric, purpose-built Machine Learning System-on-Chip (MLSoC) platform. *Founded* 2018 San Jose, United States **$235M** last round Sept 2026
- 8 [**Frore Systems** Frore Systems is a semiconductor and thermal technology startup based in San Jose, California, with manufacturing operations in Taiwan and offices in South Korea.](https://millionrounds.com/company/frore-systems) Frore Systems is a semiconductor and thermal technology startup based in San Jose, California, with manufacturing operations in Taiwan and offices in South Korea. *Founded* 2018 San Jose, United States **$223M** last round Mar 2026
- 9 [**SolFocus** SolFocus, Inc.](https://millionrounds.com/company/solfocus) SolFocus, Inc. *Founded* 2005 San Jose, United States **$211M** last round Apr 2012
- 10 [**DisplayLink** DisplayLink is a hardware and software company specializing in multi-monitor and zero client computing.](https://millionrounds.com/company/displaylink) DisplayLink is a hardware and software company specializing in multi-monitor and zero client computing. *Founded* 2003 San Jose, United States **$114M** last round Sept 2012
- 11 [**SiBEAM** SiBEAM is a fabless semiconductor company, develops intelligent millimeter wave technologies for high-bandwidth services.](https://millionrounds.com/company/sibeam) SiBEAM is a fabless semiconductor company, develops intelligent millimeter wave technologies for high-bandwidth services. *Founded* 2004 San Jose, United States **$114M** last round Mar 2010
- 12 [**Ethernovia** Ethernovia is a semiconductor and automotive networking company based in San Jose, California, founded in 2018.](https://millionrounds.com/company/ethernovia) Ethernovia is a semiconductor and automotive networking company based in San Jose, California, founded in 2018. *Founded* 2018 San Jose, United States **$90M** last round Jan 2026
- 13 [**CNEX LABS** CNEX Labs is a semiconductor manufacturing company founded in 2013 and based in San Jose, California, with additional offices in Hangzhou, Shanghai, and Copenhagen.](https://millionrounds.com/company/cnex-labs) CNEX Labs is a semiconductor manufacturing company founded in 2013 and based in San Jose, California, with additional offices in Hangzhou, Shanghai, and Copenhagen. *Founded* 2013 San Jose, United States **$78M** last round May 2022
- 14 [**Kovio** Kovio is a semiconductor company that designs and manufactures printed silicon products.](https://millionrounds.com/company/kovio) Kovio is a semiconductor company that designs and manufactures printed silicon products. *Founded* 2001 San Jose, United States **$77M** last round Jan 2013
- 15 [**Cavendish Kinetics** Cavendish Kinetics is a MEMS platform that reduces the cost of incorporating MEMS components into semiconductors.](https://millionrounds.com/company/cavendish-kinetics) Cavendish Kinetics is a MEMS platform that reduces the cost of incorporating MEMS components into semiconductors. *Founded* 1994 San Jose, United States **$69M** last round Aug 2015
- 16 [**INPHI** INPHI provides high-speed analog semiconductor solutions for the communications and computing markets in the United States.](https://millionrounds.com/company/inphi) INPHI provides high-speed analog semiconductor solutions for the communications and computing markets in the United States. *Founded* 2000 San Jose, United States **$46M** last round Jun 2010
- 17 [**TYLsemi** AI infrastructure silicon requires solutions on 3 fundamentals: Power, IO and Memory apart from compute architecture.](https://millionrounds.com/company/tylsemi) AI infrastructure silicon requires solutions on 3 fundamentals: Power, IO and Memory apart from compute architecture. *Founded* - San Jose, United States **$43M** last round Jul 2026
- 18 [**InvenSense** InvenSense provides motion-tracking devices for consumer electronic products such as smartphones, tablets, game controllers, and others.](https://millionrounds.com/company/invensense) InvenSense provides motion-tracking devices for consumer electronic products such as smartphones, tablets, game controllers, and others. *Founded* 2003 San Jose, United States **$38M** last round Apr 2008
- 19 [**Sentons** Sentons is a fabless semiconductor company based in Sunnyvale, California, established in 2011.](https://millionrounds.com/company/sentons) Sentons is a fabless semiconductor company based in Sunnyvale, California, established in 2011. *Founded* 2011 San Jose, United States **$38M** last round Apr 2014
- 20 [**Akros Silicon** Akros Silicon is a fabless semiconductor company based in San Jose, California, founded in 2006.](https://millionrounds.com/company/akros-silicon) Akros Silicon is a fabless semiconductor company based in San Jose, California, founded in 2006. *Founded* 2006 San Jose, United States **$28M** last round May 2014
- 21 [**Merlin Solar Technologies** Merlin Solar Technologies, Inc.](https://millionrounds.com/company/merlin-solar-technologies) Merlin Solar Technologies, Inc. *Founded* 2016 San Jose, United States **$16M** last round Dec 2025
- 22 [**Maskless Lithography** Maskless Lithography designs and manufactures direct-write, digital imaging lithography products for high-yield PCB manufacturing.](https://millionrounds.com/company/maskless-lithography) Maskless Lithography designs and manufactures direct-write, digital imaging lithography products for high-yield PCB manufacturing. *Founded* 2005 San Jose, United States **$15M** last round Jul 2012
- 23 [**Breker Verification Systems** Breker Verification Systems is a private company based in San Jose, California, specializing in Electronic Design Automation (EDA) software.](https://millionrounds.com/company/breker-verification-systems) Breker Verification Systems is a private company based in San Jose, California, specializing in Electronic Design Automation (EDA) software. *Founded* 2003 San Jose, United States **$5.0M** last round Jul 2012
- 24 [**Adaptive Digital Power** Adaptive Digital Power, a fabless semiconductor company, focuses on the digital power segment of the power management IC market.](https://millionrounds.com/company/adaptive-digital-power) Adaptive Digital Power, a fabless semiconductor company, focuses on the digital power segment of the power management IC market. *Founded* 2007 San Jose, United States **$4.0M** last round Aug 2010
- 25 [**Chip Estimate** Chip Estimate Corporation, an electronic design automation company, provides access to integrated chip project planning solutions.](https://millionrounds.com/company/chip-estimate) Chip Estimate Corporation, an electronic design automation company, provides access to integrated chip project planning solutions. *Founded* 2003 San Jose, United States **$3.5M** last round Oct 2006
- 26 [**DSG Technologies** DSG Technologies is a global leader in advanced thermal processing.](https://millionrounds.com/company/dsg-technologies) DSG Technologies is a global leader in advanced thermal processing. *Founded* 2004 San Jose, United States **$2.0M** last round Nov 2011
- 27 [**Cypress Envirosystems** Cypress Envirosystems, based in San Jose, California, specializes in non-invasive retrofit and digital overlay solutions for existing buildings and industrial facilities.](https://millionrounds.com/company/cypress-envirosystems) Cypress Envirosystems, based in San Jose, California, specializes in non-invasive retrofit and digital overlay solutions for existing buildings and industrial facilities. *Founded* 2007 San Jose, United States **$466K** last round May 2013

**Total funding** how the list is ranked

**15 November 2026** updated nightly

**Rounds we track** source: Millionrounds

Companies whose funding rounds we classed in this sector, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.

## Who backed them?

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## More semiconductors lists

[See all](https://millionrounds.com/top-lists?t=Semiconductors)

[*G* *T* *CS* **Semiconductor startups worldwide** 394 companies · $36B](https://millionrounds.com/top-lists/semiconductor-startups)[*G* *T* *CS* **Semiconductor startups in the United States** 212 companies · $27B](https://millionrounds.com/top-lists/semiconductor-startups-united-states)[*G* *T* *CS* **Semiconductors startups in the United States** 212 companies · $27B](https://millionrounds.com/top-lists/semiconductors-startups-united-states)[*F* *C* *G* **Semiconductor startups in Europe** 109 companies · $7.6B](https://millionrounds.com/top-lists/semiconductor-startups-europe)[*R* *CS* *G* **Semiconductors startups that raised in 2026** 103 companies · $25B in 2026](https://millionrounds.com/top-lists/semiconductors-startups-raised-2026)[*CS* *G* *A* **Semiconductors startups in the United States that raised in 2026** 47 companies · $16B in 2026](https://millionrounds.com/top-lists/semiconductors-startups-united-states-raised-2026)[*F* *C* *G* **Semiconductor startups in the United Kingdom** 37 companies · $4.7B](https://millionrounds.com/top-lists/semiconductor-startups-united-kingdom)[*F* *C* *G* **Semiconductors startups in the United Kingdom** 37 companies · $4.7B](https://millionrounds.com/top-lists/semiconductors-startups-united-kingdom)

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