29 Series B investors in Silicon Valley
We list 29 Series B investors in Silicon Valley as of November 2026: each has an SEC filing on file, and the list was last checked on 6 Nov 2026. The cities with the most head offices on this list are Menlo Park (10), Palo Alto (8) and San Mateo (3).
Top 5 Series B investors in Silicon Valley, ranked by recent fund activity
Among firms with a published profile and a dated fund or deal in the last 24 months. The rule: Activity score out of 100: recency of the latest fund filing or dated deal (40: full marks within 3 months, then stepping down at 6, 12 and 24 months), stage focus (15: all of it when Series B is the only stage the firm states, split evenly when it states more), 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 (20) and completeness of the public record (10). Stage and regional focus are our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns. The same rule orders the whole list; it is repeated in the method box.
Kleiner Perkins
Type: VC firm · HQ: Menlo Park, CA · Stages: Pre-seed, Seed, Series A, Series B, Growth · Focus: AI, Fintech, Proptech, Mobility · Latest activity: New fund, Aug 2026 · Fund size on file: $995M (SEC Form D, 2026)
Latest fund filing dated Aug 2026; $995M fund on file (SEC Form D, 2026); backs pre-seed, seed, Series A; names the US as where it invests; 2 named decision-makers on file.
Tribe Capital
Type: VC firm · HQ: San Mateo, CA · Stages: Seed, Series A, Series B, Growth · Focus: AI, Cybersecurity, Crypto and Web3, Generalist · Latest activity: New fund, Oct 2026 · Fund size on file: $500M (SEC Form D, 2021)
Latest fund filing dated Oct 2026; $500M fund on file (SEC Form D, 2021); backs seed, Series A, Series B; names the US as where it invests; 8 named decision-makers on file.
Translink Capital
Type: VC firm · HQ: Palo Alto, CA · Stages: Seed, Series A, Series B · Focus: AI, Developer Tools, Mobility, B2B · Latest activity: New fund, Sep 2026 · Fund size on file: $174M (SEC Form D, 2021)
Latest fund filing dated Sep 2026; $174M fund on file (SEC Form D, 2021); backs seed, Series A, Series B; names the US as where it invests; 8 named decision-makers on file.
Geodesic
Type: VC firm · HQ: Foster City, CA · Stages: Series B, Any stage · Focus: AI, Developer Tools, Fintech, B2B · Latest activity: New deal, Oct 2026 · Fund size on file: $500M (SEC Form D, 2021)
Dated new deal in Oct 2026; $500M fund on file (SEC Form D, 2021); backs Series B, any stage; 8 named decision-makers on file.
Autotech Ventures
Type: VC firm · HQ: Menlo Park, CA · Stages: Pre-seed, Seed, Series A, Series B · Focus: Mobility, AI, Logistics, Fintech · Latest activity: New fund, Aug 2026 · Fund size on file: $25M (SEC Form D, 2026)
Latest fund filing dated Aug 2026; $25M fund on file (SEC Form D, 2026); backs pre-seed, seed, Series A; names the US as where it invests; 8 named decision-makers on file.
First 14 of 29 Series B investors in Silicon Valley
| Investor | Type | HQ | Stagesour research | Focusour research | Latest fund or deal | Fund sizeas filed or stated | Checked | Contacts |
|---|---|---|---|---|---|---|---|---|
| Kleiner Perkins | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Series B, Growth | AI, Fintech, Proptech, Mobility | New fund, Aug 2026 | $995M (SEC Form D, 2026) | 4 Nov 2026 | 2 names · Unlock |
| Tribe Capital | VC firm | San Mateo, CA | Seed, Series A, Series B, Growth | AI, Cybersecurity, Crypto and Web3, Generalist | New fund, Oct 2026 | $500M (SEC Form D, 2021) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Translink Capital | VC firm | Palo Alto, CA | Seed, Series A, Series B | AI, Developer Tools, Mobility, B2B | New fund, Sep 2026 | $174M (SEC Form D, 2021) | 5 Nov 2026 | 8 names, firm email · Unlock |
| Geodesic | VC firm | Foster City, CA | Series B, Any stage | AI, Developer Tools, Fintech, B2B | New deal, Oct 2026 | $500M (SEC Form D, 2021) | 5 Nov 2026 | 8 names, firm email · Unlock |
| Autotech Ventures | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Series B | Mobility, AI, Logistics, Fintech | New fund, Aug 2026 | $25M (SEC Form D, 2026) | 4 Nov 2026 | 8 names · Unlock |
| Lightspeed Venture Partners | VC firm | Menlo Park, CA | Seed, Series A, Series B, Growth | AI, Healthtech, Gaming, SaaS | New fund, Jul 2026 | $1.2B (SEC Form D, 2024) | 4 Nov 2026 | 8 names · Unlock |
| G2 Venture Partners | VC firm | Portola Valley, CA | Series B, Growth | AI, Industrial Tech, Mobility, Energy | New deal, Aug 2026 | $53M (SEC Form D, 2026) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Menlo Ventures | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Series B, Growth | AI, Media, Robotics, Consumer | New fund, Sep 2026 | $800M (SEC Form D, 2025) | 4 Nov 2026 | 8 names · Unlock |
| IVP: Venture capital for the Exceptional | VC firm | Menlo Park, CA | Series B, Growth | AI, Healthtech, Developer Tools, SaaS | New fund, Oct 2026 | $60M (SEC Form D, 2026) | 4 Nov 2026 | 8 names · Unlock |
| Westly Capital Partners | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Series B, Growth | AI, Energy, Industrial Tech, Cybersecurity | New fund, May 2026 | $500M (SEC Form D, 2026) | 4 Nov 2026 | 8 names · Unlock |
| Theory Ventures | VC firm | Portola Valley, CA | Pre-seed, Seed, Series A, Series B | AI, Data, Developer Tools, Cybersecurity | New deal, Jul 2026 | $450M (SEC Form D, 2024) | 5 Nov 2026 | 8 names · Unlock |
| Calculus VC | VC firm | Foster City, CA | Series A, Series B | AI, Deep Tech, Healthtech, Industrial Tech | New deal, Aug 2026 | $1M (SEC Form D, 2025) | 4 Nov 2026 | 1 name, firm email · Unlock |
| Andreessen Horowitz (a16z) | VC firm | Menlo Park, CA | Seed, Series A, Series B, Growth | AI, Defense Tech, Healthtech, Consumer | New fund, Aug 2026 | 4 Nov 2026 | 2 names · Unlock | |
| Celesta Capital | VC firm | San Mateo, CA | Seed, Series A, Series B | AI, Healthtech, Deep Tech, Biotech | New fund, Sep 2025 | $102M (SEC Form D, 2024) | 4 Nov 2026 | 8 names, firm email · Unlock |
You are seeing 14 of 29. The full list adds 15 more investors and 162 named decision-makers.
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How these 29 break down
By city
| City | On this list | Share |
|---|---|---|
| Menlo Park | 10 | 34% |
| Palo Alto | 8 | 28% |
| San Mateo | 3 | 10% |
| Foster City | 2 | 7% |
| Portola Valley | 2 | 7% |
| Santa Clara | 2 | 7% |
By sector
| Sector | On this list | Share |
|---|---|---|
| SaaS | 24 | 83% |
| AI | 23 | 79% |
| Healthtech | 12 | 41% |
| Hardware | 11 | 38% |
| Deep Tech | 11 | 38% |
| Fintech | 9 | 31% |
| Mobility | 9 | 31% |
| Cybersecurity | 8 | 28% |
| Robotics | 8 | 28% |
| B2B | 7 | 24% |
| Biotech | 7 | 24% |
| Industrial Tech | 6 | 21% |
Sector is our research. A firm can carry more than one sector.
By type
| Type | On this list | Share |
|---|---|---|
| VC firm | 28 | 97% |
| Government or university fund | 1 | 3% |
Method and limits
- Source
- All 29 rows carry an SEC filing (Form D or Form ADV). All 29 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. Stage: the firm states that it invests at Series B. Place: head office in Silicon Valley, matched on city and state.
- Order
- Firms with a published profile come first. Activity score out of 100: recency of the latest fund filing or dated deal (40: full marks within 3 months, then stepping down at 6, 12 and 24 months), stage focus (15: all of it when Series B is the only stage the firm states, split evenly when it states more), 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 (20) and completeness of the public record (10). Stage and regional focus are our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns.
- Last refreshed
- November 2026. Rows on this list were checked between 4 Nov 2026 and 6 Nov 2026.
- Fill rates
- Of 29 rows: stage 29, sector 28, fund size 25, website 29. In the paid file: named decision-makers on 26 rows, firm email on 9, LinkedIn page on 19, check size on 2.
- Corrections
- Email [email protected] or use the update form. We act within 5 working days.
Questions
How many Series B investors in Silicon Valley are there?
We list 29 as of November 2026. 15 of the 29 have a fund filing or a dated deal in the last 12 months. The cities with the most are Menlo Park (10), Palo Alto (8) and San Mateo (3).
Which Series B investors in Silicon Valley raised a new fund in the last 12 months?
13 of the 29 have a fund filing dated in the last 12 months. The most recent on this list are IVP: Venture capital for the Exceptional (Oct 2026), Tribe Capital (Oct 2026) and Menlo Ventures (Sep 2026).
What is the typical fund size of Series B investors in Silicon Valley?
The median fund size on file for this list is $350M, across the 17 firms with a size on an SEC Form D. The fund on file is each firm's main fund, which is not always its newest. The other 12 do not disclose a size there.
How do I contact Series B investors in Silicon Valley?
The paid file holds 162 named decision-makers across 26 of these 29 and a firm email for 9. 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 Series B investors in Silicon Valley come from?
All 29 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 last checked on 6 Nov 2026 at the latest. The whole file is re-verified twice a year.
Broader lists
Series B investors in the US (165)Venture capital firms in Silicon Valley (341)Venture capital firms in California (1,038)
Related lists
Seed investors in the San Francisco Bay Area (324)Pre-seed investors in the San Francisco Bay Area (164)Seed investors in Silicon Valley (152)Series A investors in the San Francisco Bay Area (112)Pre-seed investors in Silicon Valley (75)Growth-stage investors in the San Francisco Bay Area (71)Series A investors in Silicon Valley (67)Seed investors in Los Angeles (58)Growth-stage investors in Silicon Valley (41)Pre-seed investors in Los Angeles (22)Series A investors in Los Angeles (17)Growth-stage investors in Los Angeles (15)
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