Teresa Zimmerman

Vice President, Marketing
LinkedIn

"Partnering with entrepreneurs and early-stage companies is where marketing can have its greatest impact—bringing vision to life, fueling customer connection, driving growth and building lasting brand value from the ground up."

A seasoned marketing executive, Teresa brings a proven track record of helping drive revenue growth, brand awareness, and go-to-market success for high-growth software and SaaS companies. As Vice President of Mainsail’s Center of Excellence Marketing Practice, she partners with portfolio companies to build scalable marketing strategies that deliver measurable impact, from demand generation and customer advocacy to analytics and emerging MarTech, including AI.

Before joining Mainsail, Teresa held executive marketing roles at leading technology companies including WEKA, Ontic, and Personify. Her leadership has contributed to category creation, unicorn-level growth, and board-exceeding performance of marketing's impact.

Teresa holds a Master’s degree in Communication from the University of Nebraska.

Lives in: Austin, TX
Joined Mainsail: 2025
Alma Mater: University of Nebraska

Former Software Experience:

WEKA
Ontic
Personify
Fuze (now 8x8)
Lithium + Klout (now Khorus)
Bazaarvoice

Outside of Mainsail

Based in Austin, Texas, she enjoys spending time outdoors with her husband Brian and their two dogs, Cooper and Winnie. Together, they’re on a mission to find the best tacos in the city.

Lives in: Austin, TX
Joined Mainsail: 2025
Alma Mater: University of Nebraska