Ranking It

Co-founder of Houston hypersonic engine co. lands on Inc. 500 list

Sassie Duggleby is on Inc.'s Female Founders 500 list for 2025. Courtesy photo

Five Houston female founders have been recognized by Inc. Magazine for their innovation, including Sassie Duggleby, the CEO and co-founder of groundbreaking space tech and engine company Venus Aerospace.

The women were named to Inc.'s Female Founders 500 list, which features female entrepreneurs based in the U.S. The group attracted approximately $9 billion in 2024 revenue and $10.6 billion in funding, according to Inc.

“Female founders know what struggle is, but they’re also experts of improvisation, adaptability, and creativity. The women featured on this year’s list exemplify these qualities," Diana Ransom, Inc. executive editor said in a release. "Through times of uncertainty, their unwavering dedication and steadfast leadership are not only inspiring but vital to driving progress.”

Venus Aerospace is the Houston-based company that is developing reusable hypersonic technology that it hopes "will revolutionize and redefine the boundaries of aviation, defense, and beyond." The company won the in the Deep Tech Business category in the 2024 Houston Innovation Awards. Duggleby also serves on the Texas Space Commission board of directors.

Duggleby is joined by four other Houston founders:

  • Stephanie Murphy, CEO and executive chairman of Aegis Aerospace, which provides space services, spaceflight product development, and engineering services. Murphy also serves on the Texas Aerospace Research and Space Economy Consortium Executive Committee.
  • Emily Cisek, founder of The Postage, now known as Paige, a comprehensive life planning and succession software platform for families and small businesses. The company won the Female-Owned Business category in the 2023 Houston Innovation Awards.
  • Margo Jordan, founder of adolescent mental health startup Enrichly, which uses AI-driven self-esteem development and behavioral insights to boost student performance.
  • Nina Magon, founder of Nina Magon Studio / Nina Magon Consumer Products, a residential and commercial interior design company.
"While I don't know many of the ladies on this list, I do know they're some of the most tenacious role models in entrepreneurship. I'm beyond honored to be included among them," Duggleby said in a LinkedIn post.
Twenty-eight Texas female founders made this list, including Kendra Scott and Allison Ellsworth, co-founder of Poppi, and many others.

---

A version of this story first appeared on our sister site, InnovationMap.com.

Trending News

A View From HETI

McCord Development piloted its AI-powered water management platform at Houston's Generation Park. Rendering courtesy McCord

Houston real estate company McCord Development has launched an artificial-Intelligence-run water management platform, MizuWatch.

MizuWatch aims to help operators, districts, and municipalities detect leaks faster, reduce water loss and improve efficiency, according to the company. MizuWatch pulls data from supply sources, smart meters, historical usage and maintenance records, and combines them into a single platform. The AI system also uses visual mapping and digital twin technology to deliver near-real-time system insights.

“MizuWatch brings the right data together daily, so teams can see what’s happening now, intervene earlier and focus their resources where they have the greatest impact,” Jerzy Wielgus, chief product officer for MizuWatch, said in a news release.

MizuWatch was built to “scale across geographies and system sizes to help assist with water scarcity, aging infrastructure, and operational complexity,” according to the company. It was developed at Houston’s Generation Park, McCord’s 4,300-acre master planned commercial district. McCord was able to pilot the platform onsite to help manage its complex, real-world water systems at scale.

“Resilient infrastructure is a key factor for the companies choosing Generation Park,” Ryan McCord, CEO of McCord Development and Founder & CEO of MizuWatch, added in the release. “We made the decision to deploy smart meters, but no one knew how to use the data they generate. This is an opportunity across all infrastructure where sensors are deployed. What started as an internal solution has become a platform we believe can help stakeholders everywhere be more efficient in their operations, investment, and compliance.”

Last fall, Eli Lilly and Co. selected Generation Park for its $6.5 billion manufacturing plant. More than 300 locations in the U.S. competed for the factory. Bristol Myers Squibb Co., another pharmaceutical giant, also announced it is considering Generation Park for a new manufacturing hub earlier this month.

Trending News