Backing early-stage tech companies for growth, not just capital.

A group of seasoned entrepreneurs and executives who invest, mentor & partner with seed-stage B2B and B2C companies.
At Walnut Ventures, we believe the best investments are built through collaboration. Our members bring decades of operating experience, board leadership, and angel investing—so we don’t just write a check, we help drive growth.
  • Deep operating expertise: Our members have founded and led hundreds of companies, served on more than 100 boards and invested widely.
  • Hands-on support: From go-to-market strategy, sales to fundraising, our team guides portfolio founders through critical early steps.
  • Collaborative syndication: While we make our own investments, we also co-syndicate with other angel groups and institutional funds to bring resources and relationships that help accelerate scale.
  • Founder-friendly process: We move quickly, ask the right questions, and bring value beyond capital.

​How we work
We review a curated number of startups monthly, conduct thoughtful due diligence, and invest selectively in companies where we believe we can add more than just money. Once invested, we act as mentors and connectors—helping entrepreneurs build teams, refine strategy, and find additional capital and customers.

For entrepreneurs
If you’re building a tech-enabled product (B2B or B2C) and committed to growth, you’ll find a partner in Walnut Ventures. We’re especially attentive to teams with vision, traction, and the ambition to scale.
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Why join our portfolio
Our portfolio companies gain access not only to capital, but to:
  • Strategic introductions to VC firms, corporate partners and key hires
  • Mentors who’ve built and exited companies
  • Benefits through our ecosystem partnerships (e.g., cloud credits, startup-support programs)
  • A community of fellow founders and operators who learn and grow together

Get in touch
Whether you’re raising your seed round or preparing for your next stage, we’d love to hear from you. Visit our “For Entrepreneurs” page to submit your pitch.

Additional Benefits
As an official  AWS Activate Provider, our portfolio companies have access to a host of free benefits, including AWS cloud credits, AWS business support credits, exclusive members-only offers, and access to the Activate Console to help build and grow their businesses.

​Our members speak out

A number of Walnut members actively publish information or opinions about start ups, angel investing, etc. Here's where to find them:

  • At Angel Invest Boston Sal Daher interviews members of the Boston start up community - entrepreneurs, investors, etc. - in an effort to learn more about the creation of world-changing startups.
   
  • If you are looking for anything related to Boards, Raza Shaikh is the cohost of the On Boards Podcast. It contains conversations with a range of guests about board and governance topics. 
 
  • Ben Littauer's Musings about investing, startups, revenue based financing (RBF), etc. come with his many years of experience as an angel, mentor, CTO, and entrepreneur.

​What others say about us

Semyon Dukach
Managing Partner at One Way Ventures
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Walnut has more experienced and smart people involved than most of the others, and ... you can end up with high value add angels in your rounds whom you're unlikely to meet elsewhere.
Tod Loofbourrow
CEO, ViralGains, Inc.​​

Walnut has been a fantastic partner for ViralGains - supportive, fast to move and strategic.  We have become a leader in consumer-centric video with triple digit growth thanks to great partners like Walnut.
Ty Danco
Former Director, Techstars Boston

I think Walnut is pound for pound the best angel group out there. While there are other larger groups which go in "all or none", the individual attention and level of questions at Walnut is absolutely terrific.