Jenn Kranz Guillen
Investor
Based in Venice, California, Jenn Kranz Guillen is an investor at Mucker Capital, where she partners with early-stage startups across the West Coast. She has led investments across HealthTech, FinTech, and Supply Chain, with a particular focus on vertical SaaS platforms and AI-native applications transforming legacy industries. Jenn has supported more than 30 portfolio companies through successful fundraising efforts—shaping narratives, optimizing materials, and facilitating investor introductions.
Jenn brings experience from both sides of the table. She previously contributed to investments at MTech Capital and B Capital Group, enabling over $500M in potential downstream transaction value. At Halogen Ventures, she supported acquisition strategies and LP fundraising initiatives. Earlier, she joined the founding team at Haystack, a venture-backed communications startup, where she built and executed the company’s first GTM sales campaign—driving pipeline that contributed 15% of the annual revenue target.
Jenn began her career at TriNet, where she served as the Venture Capital Practice Leader and was recognized as the top-ranked Technology Consultant in Los Angeles—TriNet’s third-largest market—advising early-stage teams on HR and operational strategy.
A double Trojan (fight on!), Jenn earned both her MBA and BA from the University of Southern California.
Jenn can be reached at jenn at mucker dot com.
Articles by Jenn Kranz Guillen
Finance 101 for Early Stage Startup Founders with Debbie Rosler
In this Mucker Growth Session, Debbie Rosler from Burkland dives into the fundamental financial best practices and infrastructure early -stage startups need to put in place. Finance 101: Why Should...
Engineering Customer & Product Feedback Loops with Holden Munson & Sofia Maravich
In this Mucker Growth session, Holden Munson and Sofia Maravich from Rethink Labs, explore how to develop a useful system of collecting customer data and integrating it into your team....
How Startups Can Win More Enterprise Deals Through Value Selling with Mike Genstil
In this Mucker Growth session, Mike Genstil with ValueCore delves into the concept of value selling and its application in enterprise sales. Delivering value at every touchpoint of...
How to Keep Your Emails Landing in the Inbox with Google’s Updated Spam Policies with Daniel-wise Ojaide
In this Mucker Growth session, Daniel-wise Ojaide from Warmbox.ai delves into the changes to Google and Yahoo’s updated spam policies and how to ensure your emails and outbound campaigns are...
Best Customers, Best Results: Unlocking Retention-Driven B2C Growth with Julius Lai
In this Mucker Growth session, Julius Lai from ArtShare discusses customer retention, which is often overlooked but essential for startups facing growth challenges. The following content will provide practical recaps...
Leveraging a Financial Model for Fundraising Success with Steven Plappert
In this Mucker Growth Session, Steven Plappert, CEO and co-founder of Forecastr, tackles how to use your financial model to the best capacity when fundraising. Your financial model can be...