Andreessen Horowitz (a16z) is a privately-held American venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz. The firm invests in both early-stage startups and established growth companies across healthcare, consumer, cryptocurrency, gaming, fintech, education, and enterprise software sectors. As of July 2025, a16z ranks first among venture capital firms by assets under management with $46 billion. The firm's investment strategy spans cloud computing, security, and software-as-a-service alongside emerging technology domains. Signal Plug searches live against awsshebuildsmentorshipprogram.com's mail server to find and verify email addresses for any Andreessen Horowitz employee.
Signal Plug searches live against awsshebuildsmentorshipprogram.com's mail server — not a static database. Get a verified email for any Andreessen Horowitz employee with confidence score in under 2 seconds.
94% accuracy · No credit card required · 10 free searches/month
Andreessen Horowitz (a16z) is a privately-held American venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz. The firm invests in both early-stage startups and established growth companies across healthcare, consumer, cryptocurrency, gaming, fintech, education, and enterprise software sectors. As of July 2025, a16z ranks first among venture capital firms by assets under management with $46 billion. The firm's investment strategy spans cloud computing, security, and software-as-a-service alongside emerging technology domains.
Competitive Advantage
Andreessen Horowitz holds the #1 position globally among all venture capital firms by assets under management as of July 2025. The firm manages $46 billion in capital across its various funds. Founded by two legendary tech entrepreneurs (Marc Andreessen of Netscape and Ben Horowitz of Opsware/Loudcloud), the firm combines deep operational experience with financial resources. a16z's investment thesis spans both traditional software and emerging technologies including cryptocurrency and blockchain.
The most commonly verified format at Andreessen Horowitz:
Medium ConfidenceSignal Plug tests all common patterns against Andreessen Horowitz's live mail server and returns whichever passes the SMTP check.
Run a live search for Andreessen Horowitz →Data-driven signals to help you prospect Andreessen Horowitz effectively.
Startups and growth-stage companies seeking venture capital funding in technology, healthcare, fintech, and consumer sectors target a16z. Enterprise software companies, cryptocurrency projects, and gaming studios actively pitch to the firm due to its established reputation and sector expertise.
Primary Contact
Startup Founder
Tuesday–Thursday, 9am–11am
Signal Plug performs live SMTP verification against awsshebuildsmentorshipprogram.com's mail server — not a static scraped database — which means results reflect the real, current state of Andreessen Horowitz's email infrastructure. Here's how to run a lookup:
Create a free account
Sign up at Signal Plug in under 30 seconds. No credit card required. The Free plan includes 10 searches per month so you can test the tool with real Andreessen Horowitz contacts before upgrading.
Enter the contact's name
Type the first and last name of the Andreessen Horowitz employee you want to reach. Signal Plug handles all seniority levels, from C-suite to individual contributors.
Enter the domain
Use awsshebuildsmentorshipprogram.com. Signal Plug tests all common naming patterns automatically and returns only the format that passes the SMTP check.
Get a verified result
Signal Plug returns an email address with a confidence score (0–100) and deliverability status (Valid, Risky, or Catch-all) within 2 seconds. The confidence score tells you how reliable the result is before you use it.
Export and use
One-click CSV export lets you bring Andreessen Horowitz contacts into Salesforce, HubSpot, Outreach, Lemlist, or any other tool in your stack. Growth and Scale plan users can run bulk lookups across an entire list of Andreessen Horowitz names in a single batch.
Andreessen Horowitz competes directly with Sequoia Capital, Accel, Benchmark and others in the Financial Services space.
| Company | Size | Tier | Focus | Email Format |
|---|---|---|---|---|
| Andreessen Horowitz | Venture Capital | firstname.lastname | ||
| Sequoia Capital | — | — | — | firstname.lastname |
| Accel | — | — | — | firstname.lastname |
| Benchmark | — | — | — | firstname.lastname |
| Khosla Ventures | — | — | — | firstname.lastname |
| Index Ventures | — | — | — | firstname.lastname |
Whether you're running outbound sales, recruiting, or building a partnership list, these are the roles most frequently contacted at Financial Services like Andreessen Horowitz.
Based on Andreessen Horowitz's profile, the highest-value contacts for outbound are:
Signal Plug works for any role at any seniority level at awsshebuildsmentorshipprogram.com. If you have a name and the domain, you can find a verified email.
How well Andreessen Horowitz fits a typical B2B outbound pipeline, based on available signals.
Moderate Fit
Funnel Fit Score
Most email finder tools pull from static databases of scraped email addresses. These databases go stale as people change jobs and companies update their email infrastructure. Signal Plug takes a different approach: every search performs a live check against awsshebuildsmentorshipprogram.com's mail server using SMTP verification. This means results reflect the current state of Andreessen Horowitz's email system — not a cached result from months or years ago.
Signal Plug enriches every result with supporting data: a confidence score (0–100), deliverability status (Valid, Risky, or Catch-all), job title where available, and LinkedIn profile URL. This context helps you prioritize which Andreessen Horowitz contacts to email first and personalize your outreach before you hit send. Plans start at $29/month for 500 searches — no annual contracts or seat fees.
Signal Plug performs a live SMTP check against awsshebuildsmentorshipprogram.com's mail server for every query — not a static database lookup. Our platform-wide accuracy rate is 94%. Each result comes with a confidence score (0–100) so you can gauge reliability before using the address.
Free plan: 10 searches. Starter ($29/mo): 500. Growth ($149/mo): 2,000. Scale ($299/mo): 5,000. No company-specific caps.
No. Signal Plug generates and verifies emails in real time via SMTP checks — no static database of Andreessen Horowitz employee emails is maintained.
Yes. Growth and Scale plan users can upload a CSV of names and run bulk lookups against awsshebuildsmentorshipprogram.com in a single batch.
Andreessen Horowitz was founded in 2009 by Marc Andreessen and Ben Horowitz.
The firm is headquartered in Menlo Park, California, United States.
As of July 2025, Andreessen Horowitz manages $46 billion in assets under management.
a16z invests across healthcare, consumer, cryptocurrency, gaming, fintech, education, and enterprise software industries.
Signal Plug searches in real time against awsshebuildsmentorshipprogram.com's mail server to find and verify email addresses for Andreessen Horowitz employees. Enter a name, enter the domain, get a verified result with a confidence score in under 2 seconds.
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