Jenn Kranz Guillen
Investor
Based in Venice, California, Jenn invests primarily in early-stage startups on the West Coast. Since joining Mucker, Jenn has led investments in startups across HealthTech, FinTech, Supply Chain, and EdTech sectors, and supported the external fundraising process for over 25 portfolio companies.
Previously, Jenn contributed to investments at MTech Capital and B Capital Group, where she enabled $500+mm in future transaction value for fundraising portfolio companies. At Halogen Ventures, she advised on acquisition strategies and fundraising initiatives.
In addition to venture capital, Jenn gained entrepreneurial experience at Haystack, where she executed a successful sales campaign that contributed 15% to the annual revenue target.
Prior to investing Jenn was the Venture Capital Practice leader and a top-ranked Technology Consultant at TriNet, specializing in the LA tech market. With a blend of investment savvy and entrepreneurial drive, she continues to support and grow innovative startups.
Jenn is a double Trojan (fight on!) having received her BA and MBA from the University of Southern California.
Jenn can be reached at jenn at mucker dot com.
Articles by Jenn Kranz Guillen

How to Build a Customer Support Function for Startups Using AI Tools with Alex Velinov
Delivering high-quality customer support can be one of the most resource-draining parts of a startup. The good news: we’re at a turning point where founders can use AI tools to...

Zero → 100: The Exact Steps We Took to Close Our First 100 Paying Customers
Going from zero customers to 100 in just four months sounds impossible—unless you’re a founder willing to roll up your sleeves and hustle relentlessly. I’m Gaurav Bhattacharya, co-founder of Jeeva.ai,...

Unblocking Startup Growth: Best Practices for Sales Discovery & Qualification with Richard Harris
Startups are in a constant race against time and resources, navigating complex sales environments with lean teams and limited margins for error. In a recent session from the Mucker Growth...

The LinkedIn Playbook: How Startup Founders Can Stand Out & Scale
This LinkedIn Playbook is based on insights from a recent one-time Mucker Growth Session webinar featuring LinkedIn growth experts Alec Paul (Founder of SalesBrand) and Kyle Williams (Founder of Brickstack)....

DeepSeek vs OpenAI: Comparison Breakdown and What It Means For Your Tech Startup With Dan Cleary
In this recent webinar of our Mucker Growth Series, we discussed the evolving AI landscape with Dan Cleary, founder of PromptHub. He provided an in-depth breakdown of DeepSeek vs. OpenAI,...

Building Product Without Knowing Code With Adam New Waterson
In a deep dive into AI-driven product development, Adam New-Waterson, a former CMO turned Chief Product Officer and now solopreneur, shared how non-technical founders can harness the power of AI...