Danny Leffel

CEO, Crew

Danny Leffel is currently the CEO & co-founder of Crew, a messaging and productivity app designed for mobile workforces. He previously founded Yardsellr, a service that operated on top of Facebook and Twitter to augment these services and provide the marketplace-specific functionality so that items could be bought and sold in the social feeds of users. During his time as the CEO at Yardsellr, Danny raised $16M from Tiger Global, Accel Partners and Harrison Metal and helped the company grow to 50 employees. Prior to Yardsellr, he co-founded InGameNow, and served as the VP of Business Development at VideoSurf, a computer-vision technology company turned video search engine that Microsoft acquired in 2011 for $100M. From 2004 to 2007, Danny served as the manager at eBay Business. Danny graduated from Trinity University in 1997.

Articles by Danny Leffel

How Shaun Merritt Vibe-Coded Karrot.ai As A Solo Builder

I recently had the opportunity to chat with Shaun Merritt, cofounder and CTO of Karrot.ai, a LinkedIn ABM tool. Shaun was kind enough to share a comprehensive breakdown of how...

7 Steps to Build a Product That Sells Itself

Learn the 7 steps to product-led growth (PLG) to build a product that sells itself. Drive activation, boost conversions, and scale efficiently with Wes Bush from ProductLed....

The Founder’s Mental Health Playbook: What I Learned After Nearly Burning Out

A hard-won guide to staying mentally healthy while building a startup I founded Stitcher, the podcast platform, in 2007 and ran it for seven years until we sold in 2014....

Answer Engine Optimization (AEO) for Early Stage Companies

In our latest session from the Mucker Growth Series featuring Ethan Smith from Graphite, we explored AEO, a significant new approach for optimizing visibility in AI-driven search, particularly relevant as...

Startup Guide to AI Visibility: Be the Brand ChatGPT Recommends

Introduction Today, users aren’t just searching on Google. They’re asking ChatGPT, Claude, Google’s Gemini, Perplexity, and other AI systems for advice. AI visibility is the new frontier of brand awareness....

Practical Uses of AI & Automation for Startup Operations

In a recent Mucker Growth Series session, we invited Rock Vitale, Founder & CEO of Easie, to share how he’s helped early-stage teams move from manual, fragmented workflows to streamlined,...