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Theresa Mazzullo

CEO, Excell Partners Inc

Years in current role: 16

What do you enjoy most about your role?

Learning. Excell invests in high tech startup companies. As such, I am fortunate to be able to see new and disruptive technologies emerging from our community/universities in optics, food & ag tech, advanced materials, industrial/energy and biotech. I learn something new in every single investor presentation. It’s energizing.

What has been the biggest challenge you’ve dealt with over the past year?

Getting back into a rhythm that is compatible with everyone and settling in on the
“new normal.”

What has been your organization’s biggest success over the past year?

Every time one of the companies in Excell’s portfolio has a successful exit (i.e., is bought by another company or goes public) it is cause for celebration. Over the last year 3 companies in our portfolio had a successful exit.

What do you see as the biggest changes in the technology industry over the next year?

Although the Metaverse is still in its nascent stage, its potential impact on how we communicate in the future makes it, in my opinion, the Next Big Thing.

What community organizations do you support as a volunteer and why?

I support many organizations financially but choose to volunteer my time by mentoring and coaching young professionals who are themselves entrepreneurs or who work in education, government and retail.

This profile is part of Rochester Business Journal's Power 50 Technology list for 2022. Information used in this profile was sourced from the honoree. View the full list at


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