Mentor Spotlight: Alison Sizer — From Apple and Nike to Supporting Founders

Alison Sizer started as someone who loved innovation and problem-solving. For 14 years, she worked at Apple and Nike, where she learned how to blend innovation with customer insight: how to spot patterns, translate problems into opportunities, and turn ideas into strategies for growth. 

Applying what she’d learned along the way, Sizer started Growth Impact to support startups and stakeholders in the innovation ecosystem. As a part of her business, she created partnerships and networks between the U.S. and South Africa, bridging the gap between startups and corporations to encourage co-creation and pilot projects. During this time, she saw how much early‑stage founders needed clear frameworks, honest guidance, and hands‑on support. 

“I started Growth Impact to support startups and stakeholders such as venture studios, investors, and accelerators. I support early-stage startups in finding product-market fit, customer understanding, go-to-market strategy, and business model development,” she said. “I also help startups with fundraising readiness and enterprise readiness. I support stakeholders by helping to assess viability, and de-risk new ventures, as well as connecting startups to enterprises.” 

Eventually, her work brought her in contact with Georgia Tech. She was working with a South African innovation lab to enable pilot projects between startups and enterprises with the goal of facilitating the co-creation of digital solutions, which led her to Rahul Saxena, director of CREATE-X. 

Sizer said she reached out to see if any potential CREATE-X startups or enterprises would want to connect to the companies she was working with in South Africa.

“Over the last few years, there's been quite a lot of interest in Georgia Tech and Atlanta in terms of a tech and innovation hub in the U.S., and there's a lot of investment happening too, in both the city of Atlanta and in Georgia Tech, in entrepreneurship and innovation and technology,” she said. “I think it's an interesting market.”

Once connected, she kept meeting Georgia Tech founders, many from CREATE‑X.

Quietly, she began helping where she could, making introductions for CREATE-X founders outside of Atlanta. For Augment Health, she made investor and potential partner introductions. For the founder of Strapt, she made introductions to investors, shared market insight, and highlighted the company in her own newsletter, which has an audience of innovation ecosystem stakeholders, including more investors. And for ZenVR, she made a connection to WeFunder for funding, which resulted in $250,000 raised.  

Collaborating with CREATE-X on a webinar, Sizer also taught Startup Launch alumni about customer understanding and segmentation, value proposition, and other topics for health and wellness founders. Beyond connecting, Sizer shaped mindsets. 

In her business, one founder she worked with was building non‑toxic performance apparel for women — a product selling through Amazon, REI, and even the U.S. military. The founder had ambition but struggled to balance DTC (direct to consumer) sales, retail, and B2B opportunities. Sizer helped her analyze her data, identify her real early adopters, and rebuild her value proposition and messaging. With a clearer customer understanding and stronger brand direction, the founder revamped her website and refined her pitch.

“I love that thrill of them being excited about implementing some of the ideas and things we talk about, seeing the growth in their business, and the positive change in their business. That really excites me,” she said.

Atlanta is an enterprise-heavy city with Fortune 500 companies, SaaS (Software as a Service) companies, and a growing biotech sector. The startup ecosystem is growing in Atlanta, and with that comes advantages. 

“I have noticed that there's a lot of strong support for Atlanta and Georgia entrepreneurs from other Atlanta and Georgia entrepreneurs,” she said. “They all support each other.”

Over the years, Sizer has advised or mentored over 100 startups and built investor connections.  

“My business is Growth Impact, because growth and impact are part of my core values. I'm glad to give back and support early entrepreneurs, sharing knowledge, tools, and resources,” she said.

As a founder, Sizer went through her own learning curve. When she first launched her company, she assumed her target customers would be venture capital firms and spent months talking to pre‑seed and seed investors, only to discover that VCs either didn’t fund the kind of operational support she offered or they expected founders to pay for it themselves. Meanwhile, the founders she spoke with said they needed her help but didn’t have the budget. She said it was a classic chicken‑and‑egg problem.

“I said, OK, this is not my target customer. The target customer is the startup,” she said. “That's where the pivot point was for me.”
That shift reshaped her entire business and reinforced the same advice she now gives students: Talk to customers, listen deeply, and don’t be afraid to adjust when the data points you in a new direction.

She officially joined the CREATE‑X mentor community last year to help more founders, guiding them in finding product-market fit, and understanding who needs this solution and why.

One thing Sizer emphasized, however, is the need for founders to continue to take initiative and be resilient in the face of challenges.
“A mentor can guide you or ask the right questions, but the founder has to find the path,” she said.

Ready to build something real?

Meet mentors like Alison Sizer in Startup Launch, where you can develop a startup to solve real-world problems and build entrepreneurial skills. Apply to Startup Launch today; applications close Tuesday, March 17.
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