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In the Lead: Best Minority-Owned Businesses 2026 – One 5 Olive

In the Lead: Best Minority-Owned Businesses 2026 – One 5 Olive

In the Lead: Best Minority-Owned Businesses 2026 – One 5 Olive

By: Daily Reporter Staff//April 22, 2026//

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One 5 Olive is a Milwaukee-based real estate development firm founded by brothers David Griggs and Gregory Davis, who grew up in the city’s Rufus King neighborhood. The company takes its name from the intersection where the two were raised.

The firm began by rehabilitating single-family homes before expanding into commercial development. One 5 Olive partners with the city of Milwaukee, Forward Community Investments, Wisconsin Housing and Economic Development Authority, Milwaukee Community Land Trust and LISC Milwaukee.

“Since the inception of the business, we have committed our time and energy to providing a product the community would be proud of,” the company said.

Griggs holds dual degrees in real estate and entrepreneurship from the University of St. Thomas and brings more than a decade of experience spanning single-family homes to Class A office space, including time at CBRE, the world’s largest commercial services firm.

Davis, who holds an architecture and design certificate from Harvard University, previously served as controller at Renters Warehouse, where he helped grow the firm’s portfolio from 30 to more than 300 units.

Both co-founders are graduates of the Associates in Commercial Real Estate program through Local Initiatives Support Corporation.

“We now are focusing our efforts on scaling our operations while maintaining quality and affordability,” the company said.

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