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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Houston palliative care company integrates with Epic platforms

epic scale

Patients and medical teams using MyChart and other Epic Systems' software will now be able to access Houston-based Koda Health's AI-enhanced end-of-life planning platform.

The Houston-based palliative care company, which was born out of the TMC's Biodesign Fellowship, has integrated its advance care planning platform with Epic, one of the most widely used electronic health record (EHR) systems in the U.S., according to a news release.

Epic estimates that more than 325 million patients have a current electronic record in its systems.

“This is a significant milestone for our mission to make advance care planning scalable, meaningful, and seamless,” Tatiana Fofanova, CEO and co-founder of Koda Health, said in the release. “By integrating into systems already used by care teams, we help eliminate friction and ensure that care delivery honors what patients truly want—especially during serious illness and at the end of life.”

The partnership will streamline processes for both patients and clinicians. Users will be able to drop advance care plans directly into the Epic charts, which will be accessible through MyChart for patients and proxies and through Epic Hyperspace/Hyperdrive for care teams. Doctors can also initiate and manage advance care plans through a simple Epic order for patients.

According to Koda Health, its platform saves an average of $10,000 to $15,000 per patient. Roughly 85 percent of users complete advance care plan documents when using the platform, which is four times the national average.

“We developed Koda to give providers the time, training, and tools to guide these critical conversations," Dr. Desh Mohan, co-founder and chief medical officer at Koda Health, added in the statement. "Our integration now makes it possible to operationalize ACP at scale—aligned with value-based care goals and clinical reality.”

The company announced a partnership with Dallas-based Guidehealth, which integrates into primary care workflows and allows providers to identify high-risk patients, coordinate care and reduce administrative burden. Guidehealth works with more than 500,000 patients

Koda Health was founded in 2020 and closed an oversubscribed seed round for an undisclosed amount last year, with investments from AARP, Memorial Hermann Health System and the Texas Medical Center Venture Fund. The company also added Kidney Action Planning to its suite of services in 2024.

Xfinity goes all-in with new national internet plan

Everything's Included

Following the successful launch and positive consumer reaction to Xfinity’s new 5-year guarantee, the nation’s largest Internet Service Provider (ISP) has launched its everyday pricing (EDP) structure with four simple national Internet tiers that include unlimited data and the advanced Xfinity WiFi Gateway for one low monthly price.

This move is part of the company’s broader strategy to give consumers simple, predictable, all-in plans for the best WiFi in the market. All plans include a line of Xfinity Mobile at no additional cost for a year.

“We said we were going to go ‘all-in’ on a new pricing strategy and we are delivering with our 5-year price lock and our new everyday price plans," says Steve Croney, chief operating officer, Connectivity & Platforms at Comcast. "Now all our Xfinity Internet packages are built on simplicity and transparency — no hidden fees, no confusion — just the best, most reliable and secure WiFi that sets a new standard for the ultimate connected experience. We’re coming out swinging with a superior WiFi product that easily beats the competition at an even better price point for customers.”

 Xfinity pricing table Graphic courtesy of Xfinity

Xfinity delivers the fastest, most reliable* WiFi experience with multi-gig speeds, a low-lag connection for gaming and streaming, the capacity to connect hundreds of devices in the home, and unbeatable wall-to-wall WiFi coverage.

The Xfinity WiFi Gateway blankets the home with cybersecurity protection and provides other advanced WiFi features and parental controls, all easily accessible in the newly redesigned Xfinity app, allowing customers to optimize and manage their WiFi experience in the home.

An unlimited line of Xfinity Mobile is also included at no cost for a year with these plans.

Only Xfinity Mobile customers have access to WiFi PowerBoost, a game-changing feature which increases Xfinity Mobile speeds up to 1 gig — no matter the plan they choose — when they are connected over WiFi in the home or anywhere else on the Xfinity WiFi network, the largest and fastest in the nation.

With 90 percent of mobile traffic traveling over WiFi, Xfinity Mobile is created for how customers use their mobile devices, combining the nation’s best WiFi with the most reliable 5G network.

Consumers can sign up for Xfinity Internet and Xfinity Mobile online at www.xfinity.com or at their local Xfinity store.

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*www.opensignal.com

Houston startup funding surpasses $1B in 2025 despite national slowdown

by the numbers

Houston-area startups raised more than $1 billion in venture capital during the first half of 2025 — almost double the haul for the first half of last year.

According to the new PitchBook-NCVA Venture Monitor, Houston-area startups raised $417.2 million in the second quarter of this year, compared with $281 million during the same period last year. In the first quarter of 2025, local startups collected $607.5 million in venture capital, compared with $281 million during the same period a year earlier.

Based on those figures, Houston-area startups picked up slightly over $1 billion in VC during the first half of this year, compared with $535 million in the first half of 2024.

Nationally, startups gained almost $70 billion in VC in the second quarter, down 25 percent from the same period a year ago, the PitchBook-NCVA Venture Monitor says.

Nizar Tarhuni, executive vice president of research and market intelligence at PitchBook, explained that “the VC landscape continues to navigate a fragile recovery” and is constrained by economic uncertainty.

However, startups in certain sectors are poised to attract a great deal of attention and venture capital over the next several years, according to the report.

“Companies operating in AI, national security, defense tech, fintech, and crypto — sectors aligned with the administration’s priorities — are attracting disproportionately more investor interest, and this trend will likely continue throughout President Donald Trump’s term,” the report says.

The AI sector accounted for 64 percent of VC deal value in the first half of 2025, according to the report.