This week's roundup of Houston innovators includes Matthew Costello of Voyager, Arielle Rogg, and Nathan Childress of Solar Slice. Photos courtesy

Editor's note: Every week, I introduce you to a handful of Houston innovators to know recently making headlines with news of innovative technology, investment activity, and more. This week's batch includes a logistics startup founder, a marketing expert, and a solar energy innovator.

Matthew Costello, CEO and co-founder of Voyager Portal

Houston logistics SaaS innovator is making waves with its expanded maritime shipping platform. Photo courtesy of Voyager

For several years now, Matthew Costello has been navigating the maritime shipping industry looking for problems to solve for customers with his company, Voyager Portal.

Initially, that meant designing a software platform to enhance communications and organization of the many massive and intricate global shipments happening every day. Founded in 2018 by Costello and COO Bret Smart, Voyager Portal became a integral tool for the industry that helps users manage the full lifecycle of their voyages — from planning to delivery.

"The software landscape has changed tremendously in the maritime space. Back in 2018, we were one of a small handful of technology startups in this space," Costello, who serves as CEO of Voyager, says on the Houston Innovators Podcast. "Now that's changed. ... There's really a huge wave of innovation happening in maritime right now." Read more.

Arielle Rogg, principal and founder of Rogg Enterprises

Arielle Rogg writes in a guest column for InnovationMap about AI in the workforce. Photo via LinkedIn

Arielle Rogg isn't worried about artificial intelligence coming for her job. In fact, she has three reasons why, and she outlines them in a guest column for InnovationMap.

"The advent of AI pushes us humans to acquire new skills and hone our existing abilities so we can work alongside these evolving technologies in a collaborative fashion. AI augments human capabilities rather than replacing us. I believe it will help our society embrace lifelong learning, creating new industries and jobs that have never existed before," she writes in the piece. Read more.

Nathan Childress, founder of Solar Slice

Solar Slice Founder Nathan Childress says his new venture offers a fulfilling way to encourage and promote solar energy and a greener planet. Photo via LinkedIn

Nuclear engineer and entrepreneur Nathan Childress wants consumers to capture their own ray of sunlight to brighten the prospect of making clean energy a bigger part of the power grid. That's why he founded Solar Slice. The new venture offers a fulfilling way to encourage and promote solar energy and a greener planet.

Although trained in nuclear power plant design, solar power drew his interest as a cheaper and more accessible alternative, and Childress tells InnovationMap that he thinks that the transition to cleaner energy, in Texas especially, needs to step up.

Recent studies show that 80 to 90 percent of the money invested into fighting climate change “aren’t going to things that people actually consider helpful,” Childress says, adding that “they’re more just projects that sound good, that are not actually taking any action." Read more.

Solar Slice Founder Nathan Childress says his new venture offers a fulfilling way to encourage and promote solar energy and a greener planet. Photo via Getty Images

Houston entrepreneur launches new venture to shine light on sustainability

energy transition

A Houston nuclear engineer and entrepreneur wants consumers to capture their own ray of sunlight to brighten the prospect of making clean energy a bigger part of the power grid.

Solar Slice Founder Nathan Childress says his new venture offers a fulfilling way to encourage and promote solar energy and a greener planet. An experienced entrepreneur, Childress also serves as founder and CEO of technology software company Macorva.

Although trained in nuclear power plant design, solar power drew his interest as a cheaper and more accessible alternative, and Childress tells InnovationMap that he thinks that the transition to cleaner energy, in Texas especially, needs to step up.

With energy demand skyrocketing, and the push toward renewable solutions, solar seems like a safe bet for Childress, a former competitive high-stakes poker player. Childress cites a recent Yale University study that says 63 percent of Americans “feel a personal responsibility to help reduce global warming.”

But some studies show that 80 to 90 percent of the money invested into fighting climate change “aren’t going to things that people actually consider helpful,” he says.

“They’re more just projects that sound good, that are not actually taking any action,” says Childress, who has called Houston home for 25 years. He received his doctorate in medical physics at M.D. Anderson Cancer Center, where he worked on software that provided radiation therapy for patients.

The initial Kickstarter fundraising round, which will be launched soon, will finance the construction of one utility-scale solar farm, on about five to 10 acres, which would produce about 1 megawatt, or 1,000 kilowatts, of clean energy. The plant would make enough energy to power about 200 average homes.

Childress says interest has been strong, with several thousand signed up on the Kickstarter launch list. Some who are signed up expressed interest in a subscription, he said, and that may be offered later. Initially, though, for a one-time purchase of $95, a Solar Slice client can purchase one virtual 50W slice of solar power, produced by the farm. Over its lifetime, Childress says, that one purchase can offset three tons of carbon dioxide.

The app tracks carbon offsetting, and energy production for the slice, showing a client “exactly how much I have helped the climate, here’s exactly how (many) emissions I have prevented from putting in the atmosphere,” he says.

The energy produced by five slices can offset the average American’s carbon footprint for a year, and the power generated by the solar farm will be sold to the electric grid. As clients purchase more slices, they can earn eco-credits to donate to other climate-friendly partners, to plant trees or create pollinator habitats.

While Solar Slice is a for-profit venture, contributors won’t get rich or even make money from their purchase. Rather, it provides validation.

“Our focus is maximizing the real world impact, not for financial gain. This is not something people sign up (for) to make money. We’re really clear about that,” Childress says. “I want to show that it’s possible to have a for-profit company that is sustainable, that does good work.

“And hopefully, we can be part of the spirit…for a bigger movement, and for consumers and business, especially, to do things that matter.”


Solar Slice Founder Nathan Childress says his new venture offers a fulfilling way to encourage and promote solar energy and a greener planet. Photo courtesy

The largest U.S. solar plants are in Nevada and California, and those states are sites under consideration, but Childress says Texas is the most likely home for the initial project. The ten largest utility-scale solar plants in Texas by capacity are all in far west or central parts of the state, according to the state comptroller’s office.

Childress has a team of four, who are handling the marketing, plant design and site scouting, and hopes to hire five to 10 more, depending on response and growth. He says the Solar Slice consumer can directly connect in real time to the contribution that their purchase will make toward a green energy future.

“That was our inspiration..let’s start something that is really making a difference..and making really clear to the individuals what’s being done,” he says.

Solar energy has become a growing source of power for Texas, comprising about 6 percent of the state’s energy generation, as of 2022, the comptroller’s office says.

The state ranks first in projected growth of solar energy over the next five years, with more than 9,500 operating solar plants, and many thousands more announced, according to the state Public Utility Commission.

“We would absolutely love to make this into something where we are building plants around the nation, around the world,” Childress he says.

However, resistance to alternative energy projects like solar and wind, especially on a large scale, remains in some quarters.

Obtaining site permits for swaths of land can be also a challenge. For example, a recent survey by Berkeley Lab of 123 professionals from 62 unique, large-scale wind and solar energy facilities showed that about one-third of wind and solar siting applications in the past five years were canceled.

Half of the projects experienced delays of six months or longer. And according to the survey, developers expect the trend to continue, and become more expensive to address.

However, another Berkeley Lab survey of residents who live within three miles of a solar power plant showed that most view the plant positively. The larger the plant, the more negative the response in the survey. The smaller the farm, the more positive the reactions.

Childress says many of the common objections to utility-scale solar farms are misguided, and incorrect. For example, the concern that they would take over available farmland or take up too much space.

He says that even if the entire U.S. power grid relied solely on solar power, the plants would occupy not even a half percent of available land, which is about one percent farmland.

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This article originally ran on EnergyCapital.

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Texas universities develop innovative open-source platform for cell analysis

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What do labs do when faced with large amounts of imaging data? Powerful cloud computing systems have long been the answer to that question, but a new riposte comes from SPACe.

That’s the name of a new open-source image analysis platform designed by researchers at Baylor College of Medicine, Texas A&M University and the University of Houston.

SPACe, or Swift Phenotypic Analysis of Cells, was created to be used on standard computers that even small labs can access, meaning cellular analysis using images produced through cell painting has a lower barrier to entry than ever before.

“The pharmaceutical industry has been accustomed to simplifying complex data into single metrics. This platform allows us to shift away from that approach and instead capture the full diversity of cellular responses, providing richer, more informative data that can reveal new avenues for drug development,” Michael Mancini, professor of molecular and cellular biology and director of the Gulf Coast Consortium Center for Advanced Microscopy and Image Informatics co-located at Baylor College of Medicine and TAMU Institute for Bioscience and Technology.

SPACe is not only accessible because of its less substantial computational needs. Because the platform is open-source, it’s available to anyone who needs it. And it can be used by academic and pharmaceutical researchers alike.

“The platform allows for the identification of non-toxic effects of drugs, such as alterations in cell shape or effects on specific organelles, which are often overlooked by traditional assays that focus largely on cell viability,” says Fabio Stossi, currently a senior scientist with St. Jude Children’s Research Hospital, the lead author who was at Baylor during the development of SPACe.

The platform is a better means than ever of analyzing thousands of individual cells through automated imaging platforms, thereby better capturing the variability of biological processes. Through that, SPACe allows scientists an enhanced understanding of the interactions between drugs and cells, and does it on standard computers, translating to scientists performing large-scale drug screenings with greater ease.

"This tool could be a game-changer in how we understand cellular biology and discover new drugs. By capturing the full complexity of cellular responses, we are opening new doors for drug discovery that go beyond toxicity,” says Stossi.

And the fact that it’s open-source allows scientists to access SPACe for free right now. Researchers interested in using the platform can access it through Github at github.com/dlabate/SPACe. This early version could already make waves in research, but the team also plans to continually improve their product with the help of collaborations with other institutions.

The Ion names new coworking partner for Houston innovation hub

Where to Work

Rice University subsidiary Rice Real Estate Co. has tapped coworking company Industrious as the new operator of the Ion’s 86,000-square-foot coworking space in Midtown. Industrious replaces WeWork-owned Common Desk in that role.

The Ion, owned by Rice Real Estate and located at 4201 Main St., is a 266,000-square-foot office building and innovation hub in the 16-acre Ion District.

Features of the coworking space include private suites and offices, dedicated desks, phone booths and conference rooms. In 2022, Common Desk said it was expanding the space by 28,000 square feet, bringing it to the current size.

“(Industrious’) unparalleled expertise in delivering quality, hospitality-driven workspaces complements our vision of creating a world-class ecosystem where entrepreneurs, corporations, and academia converge to drive innovation forward,” Ken Jett, president of Rice Real Estate, said in a statement.

Natalie Levine, senior manager of real estate at Industrious, says her company will work with Rice Real Estate “to continue to position the Ion as an invaluable contributor to the growth of Houston’s innovation community.”

Dallas-based commercial real estate services company CBRE said Jan. 14 that it had agreed to acquire Industrious in a deal valued at $400 million.

The Ion is Industrious’ second location in Houston. The company’s other local coworking space is at 1301 McKinney St.

Office tenants at the Ion include Occidental Petroleum, Fathom Fund, Activate, Carbon Clean, Microsoft and Chevron Technology Ventures.

Texas ranks among the 5 best states to start a business in 2025

Best for Biz

As one of the largest states in the U.S., it's no surprise Texas is big on business and entrepreneurship. Now the state is earning new praise among WalletHub's 2025 list of "Best & Worst States to Start a Business."

The Lone Star State claimed the No. 4 spot in the report's rankings, proving that Texas is in a much better business shape than it was last year when it earned No. 8 in WalletHub's annual report.

The study compared all 50 states across 25 metrics to determine the best places to start, grow, and find success with a new business. Factors that were considered include the number of startups per capita, job growth rates, financing accessibility measures, labor costs and corporate tax rates.

The three states to outperform Texas in the 2025 report are Florida (No. 1), Georgia (No. 2), and Utah (No. 3). Idaho rounded out the top five.

Across the study's three main categories, Texas performed the best in the "business environment" category, earning No. 1 nationally. This section compares the states based on five-year business survival rates, average business revenues growth and more.

Texas ranked No. 12 in the nationwide comparison of "access to resources" – which covers working age population growth, venture investment amounts per capita and other means – and earned a fair No. 34 in the report's "business costs" ranking.

But Texas can still do better with its business friendliness to reclaim a top-three overall ranking, which the state last earned in 2023.

WalletHub analyst Chip Lupo said in the report that it is imperative for potential new business owners to establish their enterprise in a place that can maximize their ability to succeed.

"Around half of all new businesses don’t survive five years, so the idea of becoming a business owner can be daunting, especially with the current high cost of living," Lupo said. "The best states have low corporate tax rates, strong economies, an abundance of reliable workers, easy access to financing and affordable real estate. On top of that, you’ll need to make sure you start in a place with an engaged customer base, if you’re operating locally."

Houston has also proven to be at the top of the destination list for entrepreneurs who are looking for their next venture.

The top 10 best states to start a new business in 2025 are:

  • No. 1 – Florida
  • No. 2 – Georgia
  • No. 3 – Utah
  • No. 4 – Texas
  • No. 5 – Idaho
  • No. 6 – Oklahoma
  • No. 7 – Nevada
  • No. 8 – Colorado
  • No. 9 – Arizona
  • No. 10 – Kentucky
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This story originally appeared on our sister site, CultureMap.