Houston Exponential has made another new hire. Clemmie Pierce Martin has joined Houston Exponential as director of marketing and strategy. The nonprofit helps spur the growth of Houston’s innovation ecosystem.

She most recently was director of strategic partnerships and products at Houston-based startup Goodfair, which operates an online thrift store. Before that, she was head of client success at Austin-based startup Mesa Cloud, which offers a platform for tracking student progress.

Martin, who grew up in Houston and graduated from the University of Texas at Austin and Houston’s The Kinkaid School, says her new employer “sees the potential in Houston and our startup ecosystem that I’ve always felt was underserved and underrepresented nationally. I couldn’t be more excited to join a team that is working tirelessly to make sure that for founders and startups anywhere in the world, Houston is not just a choice but rather the clear choice of venue.”

Martin is a great-niece of the late President George H.W. and the late first lady Barbara Bush.

Serafina Lalany, the new executive director of Houston Exponential (HX), says Martin’s experience with startups “is an invaluable asset to the organization.”

“Her insights and experiences … couldn’t be more fitting for HX’s mission to lower the barrier of entry for early stage startups in the city,” Lalany says in a news release.

Lalany became executive director of HX in September. She had been the organization’s vice president of operations and chief of staff. Lalany succeeds Harvin Moore, who resigned this summer as president and CEO of the four-year-old nonprofit.

Earlier this month, HX named Ivery Boston III as director of inclusive innovation. He previously worked for the Miami Downtown Development Authority.

Aside from the new hires, the organization recently restructured its board of directors. The board transitioned to a more informal “convening” board, and an executive committee now oversees HX’s operations.