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

Build Alignment Before You Burn Out

Everything Feels Urgent At early-stage companies, everything feels urgent: shipping product, closing customers, raising money. In that environment, planning can feel like a luxury, or even a liability. In my...

How To Use Reddit To Scale Organic Growth For Your Startup

In this Mucker Growth Series session, Colin Belyea, founder of Karmic and an expert in Reddit organic growth, breaks down how Reddit has become one of the most influential discovery...

Sales Comp Kick Start: Keys to Getting It Right as You Begin to Build Your Sales Team

Webinar Recap featuring Donya Rose, Managing Principal from The Cygnal Group Sales compensation is one of the most critical aspects of building a successful sales organization. Many early-stage founders stumble...

Austin Tech Week 2025 Recap

Mucker Capital hosted two powerful days of programming during Austin Tech Week, bringing together founders, operators, and growth leaders to share real-world insights from the startup trenches. Across four sessions,...

LA Tech Week 2025 Day 3 Recap: AI Search – Wednesday Oct 15

After two packed days exploring AI startup building and go-to-market growth, Day 3 of LA Tech Week shifted focus to the evolving world of AI Search, how new AI technologies...

LA Tech Week 2025 Day 2 Recap: Startup Growth – Tuesday Oct 14

After a packed AI Building Day, we continued LA Tech Week with Startup Growth Day, a full schedule of sessions focused on go-to-market strategy, founder journeys, and scaling startups in...