--- title: "15 Semiconductor Investors in California (Nov 2026)" last_updated: "2026-11-10" rows: "15" free_rows: "10" source: "SEC filings" canonical: "https://theinvestordatabase.com/lists/semiconductor-investors-in-california/" --- # 15 semiconductor investors in California We list 15 semiconductor investors in California as of November 2026: each has an SEC filing on file, and its rows were last checked between 4 Nov 2026 and 10 Nov 2026. The cities with the most head offices on this list are San Francisco (4), Palo Alto (3) and Los Altos (2). - 15 investors - 11 with dated activity in the last 12 months (fund, deal or portfolio news) - $51M median fund size on file (SEC Form D, 11 firms) - 46 named decision-makers on file ## First 10 of 15 semiconductor investors in California | Investor | Type | HQ | Stages (our research) | Focus (our research) | Latest dated activity | Fund size | Checked | Profile | |---|---|---|---|---|---|---|---|---| | Bison Ventures | VC firm | San Francisco, CA | Pre-seed, Seed, Series A, Series B | Semiconductor, AI, Healthtech, Energy | Form D filing, Oct 2026 | $160M (largest main fund, SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/bison-ventures/ | | Matter Venture Partners | VC firm | Los Altos, CA | | Semiconductor, AI, Robotics, Space | Form D filing, Sep 2026 | $450M (largest main fund, SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/matter-venture-partners/ | | Julian Capital: Deeptech Seed Fund | VC firm | San Francisco, CA | Pre-seed, Seed | Semiconductor, Energy, Deep Tech, Healthtech | Form D filing, Aug 2026 | $51M (largest main fund, SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/julian-capital-deeptech-seed-fund/ | | Mayfield | VC firm | Menlo Park, CA | Pre-seed | Semiconductor, AI, Consumer, Healthtech | Form D filing, Sep 2026 | | 2026-11-04 | https://theinvestordatabase.com/investors/mfo-fund/ | | FoundersX Ventures | VC firm | Menlo Park, CA | | Semiconductor, AI, Space, Robotics | Form D filing, Aug 2026 | $50M (largest main fund, SEC Form D, 2024) | 2026-11-10 | https://theinvestordatabase.com/investors/foundersx-ventures/ | | Raisewell Ventures | VC firm | Berkeley, CA | Seed | Semiconductor, AI, Healthtech, Robotics | Form D filing, Jul 2025 | $33M (largest main fund, SEC Form D, 2024) | 2026-11-04 | https://theinvestordatabase.com/investors/raisewell-ventures/ | | WI Harper Group | VC firm | San Francisco, CA | Seed, Series A | Semiconductor, AI, Healthtech, Biotech | Portfolio news, Mar 2026 | $150M (largest main fund, SEC Form D, 2020) | 2026-11-05 | https://theinvestordatabase.com/investors/wi-harper-group/ | | Clear Ventures | VC firm | Palo Alto, CA | Pre-seed, Seed | Semiconductor, AI, SaaS, Cybersecurity | Portfolio news, May 2026 | $30M (largest main fund, SEC Form D, 2021) | 2026-11-05 | https://theinvestordatabase.com/investors/clear-ventures/ | | Rock Yard Ventures | VC firm | Buena Park, CA | Pre-seed, Seed | Semiconductor, Industrial Tech, Robotics, Energy | Form D filing, Dec 2023 | $10M (largest main fund, SEC Form D, 2023) | 2026-11-05 | https://theinvestordatabase.com/investors/rock-yard-ventures/ | | G Vision Capital | VC firm | Palo Alto, CA | Seed | Semiconductor, AI, Industrial Tech, Healthtech | Form D filing, Jan 2026 | | 2026-11-04 | https://theinvestordatabase.com/investors/g-vision-capital/ | You are seeing 10 of 15. The full list adds 5 more investors and 46 named decision-makers. Get all 15 investors and 46 named contacts, $49, one-time: https://theinvestordatabase.com/buy/list/semiconductor-investors-in-california This page: https://theinvestordatabase.com/lists/semiconductor-investors-in-california/ ## Method and limits - Source: All 15 rows carry an SEC filing (Form D or Form ADV). All 15 have a website we checked. Filing date and fund size are SEC data where a filing exists. Stage, sector and check size are our research. - Inclusion rule: Organizations that back startups. Individuals, buyout funds and firms we found to be inactive are left out. Sector: the firm states semiconductors as a focus on its own site, or we observed it in the firm's portfolio. Place: head office in California. - Order: Activity score out of 100: recency of the latest dated activity, which is a fund filing or announcement, a deal or portfolio news (35: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (25; half of that when the sector is stated only), stated focus on the US (15: full marks when the firm names the US as where it invests, half when it says global), size of the fund on file on a log scale (15) and completeness of the public record (10). Regional focus is our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns. - Fill rates: Of 15 rows: stage 11, sector 15, fund size 13, website 15. In the paid file: named decision-makers on 14 rows, firm email on 2, LinkedIn page on 4, check size on 3. ## Questions ### How many semiconductor investors in California are there? We list 15 as of November 2026. 11 of the 15 have dated activity in the last 12 months. The newest item on the row is a fund filing for 8, a new deal for 1 and portfolio news for 2. The cities with the most are San Francisco (4), Palo Alto (3) and Los Altos (2). ### Which semiconductor investors in California have a fund filing dated in the last 12 months? 8 of the 15 have a fund filing dated in the last 12 months, a first Form D notice or the yearly amendment of an older fund. The most recent on this list are Tyche Partners VEIR (Oct 2026), Bison Ventures (Oct 2026) and Mayfield (Sep 2026). ### What is the typical fund size of semiconductor investors in California? The median fund size on file for this list is $51M, across the 11 firms with a size on an SEC Form D. The fund on file is the firm's largest main fund on our record or, where no main fund states a size, its largest side vehicle such as a feeder or an opportunity fund. It is not always the firm's newest. The other 4 have no size on a Form D. ### How do I contact semiconductor investors in California? The paid file holds 46 named decision-makers across 14 of these 15 and a firm email for 2. We publish the address a firm lists itself, never a personal email. Each free row links to a profile with the firm's website. ### Where does the data on semiconductor investors in California come from? All 15 rows have an SEC filing on file (Form D or Form ADV). Filing date and fund size come from the filing. Stage, sector and check size are our research. Rows on this list were checked between 4 Nov 2026 and 10 Nov 2026. The whole file is due a recheck twice a year, and every row shows the date it was last checked.