This week's roundup of Houston innovators includes Joanna Nathan of Prana Thoracic, James Rees of BWT, and Aimee Gardner of SurgWise. Photos courtesy

Editor's note: In this week's roundup of Houston innovators to know — a special Labor Day edition, I'm introducing you to three local innovators across industries — from human resources to medical devices — recently making headlines in Houston innovation.

Joanna Nathan, CEO and founder of Prana Thoracic

Joanna Nathan joins the Houston Innovators Podcast and explains why she's taken on leading a medical device startup. Photo courtesy of Joanna Nathan

If there was a Houston innovation ecosystem playing card, Joanna Nathan would definitely have BINGO by now. From starting a startup while a student at Rice University and being an early hire of medical device company Saranas to leading investment at Johnson & Johnson's Center for Device Innovation, Nathan is headed back to the founder seat with Prana Thoracic, a new company planning to equip physicians with a better tool for lung cancer intervention.

"Unlike breast, prostate, and other types of cancers, we historically have not actively screened for lung cancer," Nathan says on this week's Houston Innovation Podcast. "Screening has only just begun in this world, and because of that, physicians still need the right tools to take early screening information and turn it into early intervention."

Last month, Nathan, who serves as CEO of the company, and Prana announced that Nucore Medical Inc., its wholly owned subsidiary, has been awarded a $3 million grant from CPRIT. Click here to read more and stream the podcast episode.

James Rees, chief impact officer at Botanic Water Technologies

James Rees is the Houston-based chief impact officer at BWT. Photo via LinkedIn

This probably isn't breaking news, but the world is on the midst of a water crisis. More than 2 million Americans don’t have access to clean drinking water, according to one study by the U.S. Water Alliance group.

To help close that water gap, international firm, Botanical Water Technologies, has plans to expand its presence in the United States with the Houston region being a strategic area to roll out the implementation of a patented water filtration technology. In addition, the group is launching a blockchain enabled trading platform with Fujitsu to help support the business.

“Water is finite,” says Houston-based James Rees, chief impact officer at BWT. “Due to global growth and climate conditions, we are going to have between 20 to 30 percent less water available to us by 2025. Communities are facing issues with water infrastructure. Some communities don't have water. This is where BWT plans to come in to help.” Click here to read more.Click here to read more.

Aimee Gardner, CEO and co-founder of SurgWise

Aimee Gardner is the CEO and president of Houston-based SurgeWise. Photo via surgwise.com

Over the course of the summer, Aimee Gardner has been writing strategic columns for startups with hiring tips. Her articles have focused on scaling quickly, why not to just trust your gut when hiring, and attracting and retaining a diverse workforce.

Gardner's advice is especially keen since she herself is a startup founder — but also has a Master's degree in organizational psychology. For years, she's been advising both her clients at her company SurgWise Consulting, but also students at Baylor College of Medicine.

"If your startup has gotten to the point of being able to grow the team, it is clear that ample vision, strategy, and innovation has been dedicated to the mission up until this point. Hiring in the next round of team members is not a process that should undergo any less dedication," she writes in one of her articles. "Ensuring that those around you share your vision, goals, and have a complementary set of skills and attributes will be critical to ensure success in your company’s growth and achievements." Click here to read her guest columns,

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Houston maritime startup raises $43M to electrify vessels, opens new HQ

Maritime Mission

A Houston-based maritime technology company that is working to reduce emissions in the cargo and shipping industry has raised VC funding and opened a new Houston headquarters.

Fleetzero announced that it closed a $43 million Series A financing round this month led by Obvious Ventures with participation from Maersk Growth, Breakthrough Energy Ventures, 8090 Industries, Y Combinator, Shorewind, Benson Capital and others. The funding will go toward expanding manufacturing of its Leviathan hybrid and electric marine propulsion system, according to a news release.

The technology is optimized for high-energy and zero-emission operation of large vessels. It uses EV technology but is built for maritime environments and can be used on new or existing ships with hybrid or all-electric functions, according to Fleetzero's website. The propulsion system was retrofitted and tested on Fleetzero’s test ship, the Pacific Joule, and has been deployed globally on commercial vessels.

Fleetzero is also developing unmanned cargo vessel technology.

"Fleetzero is making robotic ships a reality today. The team is moving us from dirty, dangerous, and expensive to clean, safe, and cost-effective. It's like watching the future today," Andrew Beebe, managing director at Obvious Ventures, said in the news release. "We backed the team because they are mariners and engineers, know the industry deeply, and are scaling with real ships and customers, not just renderings."

Fleetzero also announced that it has opened a new manufacturing and research and development facility, which will serve as the company's new headquarters. The facility features a marine robotics and autonomy lab, a marine propulsion R&D center and a production line with a capacity of 300 megawatt-hours per year. The company reports that it plans to increase production to three gigawatt-hours per year over the next five years.

"Houston has the people who know how to build and operate big hardware–ships, rigs, refineries and power systems," Mike Carter, co-founder and COO of Fleetzero, added in the release. "We're pairing that industrial DNA with modern batteries, autonomy, and software to bring back shipbuilding to the U.S."

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This article originally appeared on EnergyCapitalHTX.com.

Innovative Houston-area hardtech startup closes $5M seed round

fresh funding

Conroe-based hardtech startup FluxWorks has closed a $5 million seed round.

The funding was led by Austin-based Scout Ventures, which invests in early-stage startups working to solve national security challenges.

Michigan Capital Network also contributed to the round from its MCN Venture Fund V. The fund is one of 18 selected by the Department of Defense and Small Business Administration to participate in the Small Business Investment Company Critical Technologies Initiative, which will invest $4 billion into over 1,700 portfolio companies.

FluxWorks reports that it will use the funding to drive the commercialization of its flagship Celestial Gear technology.

"At Scout, we invest in 'frontier tech' that is essential to national interest. FluxWorks is doing exactly that by solving critical hardware bottlenecks with its flagship Celestial Gear technology ... This is about more than just gears; it’s about strengthening our industrial infrastructure," Scout Ventures shared in a LinkedIn post.

Fluxworks specializes in making contactless magnetic gears for use in extreme conditions, which can enhance in-space manufacturing. Its contactless design leads to less wear, debris and maintenance. Its technology is particularly suited for space applications because it does not require lubricants, which can be difficult to control at harsh temperatures and in microgravity.

The company received a grant from the Texas Space Commission last year and was one of two startups to receive the Technology in Space Prize, funded by Boeing and the Center for the Advancement of Science in Space (CASIS), in 2024. It also landed $1.2 million through the National Science Foundation's SBIR Phase II grant this fall.

Fluxworks was founded in College Station by CEO Bryton Praslicka in 2021. Praslicka moved the company to Conroe 2024.