All of our Co-founder relationship articles

Starting Up

25 Hard Questions Every Founder Should Ask Themselves

Startup founders share their go-to questions for taking a pulse check on everything from product strategy to co-founder relationships to their own decision making.

Product

GOAT’s Path to Product-Market Fit — How a Fake Sneaker Sparked a $4B Idea

GOAT co-founder and CEO Eddy Lu sits down with First Round Partner Todd Jackson to tell the story of how a decade of middling entrepreneurial ideas finally culminated in the $4B idea for a sneaker marketplace.

Product

Pilot’s Path to Product-Market Fit — Three-Peat Founders on Picking the Right Team and the Right Market

The founders of Pilot have started three times over, starting with Ksplice (sold to Oracle in 2011) and then Zulip (acquired by Dropbox in 2014).

Product

Merge’s Path to Product-Market Fit — The Importance of Founder-led Sales (Even for a Self-Serve Product)

Merge founder and CEO Shensi Ding sits down with First Round Partner Todd Jackson for a behind-the-scenes look at how she and co-founder Gil Feig built and scaled a product that solved the painful headache of building and maintaining integrations.

Product

Material Security’s Path to Product-Market Fit — Find Your Winning Idea by Selling Products That Don’t Exist Yet

Material Security co-founders Ryan Noon and Abhishek Agrawal sit down with First Round Partner Todd Jackson to explain how they whittled 25 startup ideas down to 4 and then used a pre-selling technique to find their winning idea.

Starting Up

Small Habits Co-Founders Can Hang On to as They Build the Plane While Flying It

Labelbox’s Manu Sharma and Brian Rieger have turned a decade-long friendship into a lasting business partnership, scaling the AI developer tool startup since co-founding it together in 2017.

Engineering

How to Chart Your Engineering Career Path: IC, Manager or Technical Founder?

From early employee to technical founder: Amber Feng shares essential lessons for engineers up and down the org chart, drawing from her 8-year career at Stripe and becoming a technical founder of Cocoon.

Starting Up

The Company-Building Cornerstones Every Founder Needs to Focus On — Advice From HubSpot’s Dharmesh Shah

Dharmesh Shah has spent the last 15 years as co-founder & CTO of HubSpot. He pinpoints the inflection points and key decisions that other founders face in the early days, from choosing a co-founder to crafting the culture, and shares unconventional advice.

Starting Up

The Startup Happiness Formula — This 3X Founder Shares His Approach to Figuring Out What to Build Next

Repeat founder Waseem Daher, co-founder and CEO of Pilot, has founded three startups with the same group of co-founders. He pays particular attention to Pilot’s first year — including validating the idea, choosing an ICP, and outlining the product roadmap for a company that can go the distance.

Management

This Founder Built Startups in 2008, 2016 and 2018. Here’s What He’s Learned About Resiliency

Bob Moore's first brush with life as a founder started in 2008—three days before Lehman Brothers collapsed. Since he cut his teeth as a first-time founder in turbulent times, he's gone on to build two other companies. Here, Moore shares the lessons he's learned along the way.

People & Culture

How to Fix the Co-Founder Fights You’re Sick of Having — Lessons from Couples Therapist Esther Perel

Renowned couples therapist Esther Perel now has her sights trained on helping a different kind of pair: co-founders in the startup world. Here, she reveals her playbook for resolving recurring conflicts and communication failures between co-founders by sharing her favorite techniques for getting to

Starting Up

The Founder Dating Playbook – Here’s the Process I Used to Find My Co-Founder

Gloria Lin opens up about her pre-founder journey, from how to find a co-founder and early conversations, to the set of 50 questions she prototyped to team up on a startup idea.