Aaron Harris was a partner at YC for 7+ years, where he built the YC Series A program and advised founders on 200+ Series As & Bs that raised more than $3 billion. Now, he has co-founded Magid & Co, where he works with founders to scale their startups and navigate fundraising, with a focus on Series As and Bs.


There is no deterministic path to a Series A. The market is constantly moving, investor sentiment is constantly changing, and it can be very difficult to figure out when to raise, how much to raise, and how to achieve the best possible results.

That's why we're excited to bring Founder Guild members together for a private event at the BRAND NEW FIRSTMARK OFFICE (our first one here, ever) to learn from Aaron about:

  • When to (and not to) raise your Series A
  • Key metrics that matter for your raise
  • Strategies for engaging potential investors (and gauging their interest)
  • Critical mistakes Founders are still making today (and how to avoid them)
  • And more!

This session will be followed by an open AMA period where you will be able to ask anything and everything related to raising capital in a closed-door setting. Whether you're thinking about raising seed, A, or B funding, this session will be extremely helpful as you plan your next steps.

There will also be plenty of time for networking with your peer founders both before and after the content.


5:30pm - Food, Drinks, and Networking

6:00pm - Prepared Remarks from Aaron Harris

6:20pm - AMA period

6:50pm - More Food, Drinks, and Networking


The Founder Guild is an invite-only group of NYC-based early-stage founders who represent some of the best founders we’ve met as a firm. It's a group of folks to know and spend time with as you build, and we always make sure it's low-lift, high-value to be a member. To refer Founders to the Guild, please email ben@firstmark.com.