The Rice Alliance for Technology and Entrepreneurship identified eight startups that are best suited for disrupting energy tech and innovation. Photo courtesy of Rice Alliance

In honor of CERAWeek, the Rice Alliance for Technology and Entrepreneurship hosted its annual Energy Venture Day.

After over 50 startup pitches and more than 300 meetings, venture investors identified eight startups that are the most-promising companies on a path to innovate and disrupt the energy ecosystem.

The 2023 Energy Venture Day's Most-Promising Startup winners were:

AeroShield Materials

Graphic via aeroshield.tech

Hyde Park, Massachusetts-based AeroShield Materials is creating thermally insulating transparent inserts. The inserts are only four millimeters of AeroShield's material and, when placed inside a double-pane window, provides 65 percent more energy efficiency.

Columbia Power Technologies (C-Power)

Image via cpower.co

C-Power, based in Charlottesville, Virgina, has a technology that harnesses the power of the ocean.

"C-Power delivers this renewable energy resource to the world, both through low-power solutions that bring energy and the cloud to the sea and large-scale solutions that help decarbonize terrestrial grids," the company's website reads.

EarthEn

Graphic via earthen.energy

Chandler, Arizona-based EarthEn is focused on long duration energy storage solutions that use CO2 in a closed loop to store 4 to 100 hours of energy at a low cost. The SaaS tools — with artificial intelligence and machine learning — optimize peak demand pricing and use predictive analysis to enable grid resiliency.

Group1

Photo via Twitter

Group 1, based in Austin, is focused on the commercialization of potassium-ion batteries. The core technology originates from the labs of University of Texas at Austin professor JB Goodenough, co-inventor of the lithium-ion battery.

Ionada Carbon Solutions

Photo via ionada.com

Houston-based Ionada, a member of Halliburton Labs, has created a technology that can remove up to 99 percent of the carbon dioxide emissions for the energy, marine, and e-fuels, according to the company.

"Our engineers have more than a century of combined expertise in reducing emissions for the power generation, chemical, road, rail, air and marine industries. We are here to help you find the best sustainable solution to reduce your emissions," reads the website.

H Quest Vanguard

Photo courtesy of Halliburton

Another Halliburton Labs member H Quest Vanguard, headquartered in Pittsburgh, has developed an electrically powered chemical conversion platform that leverages Microwave Plasma Pyrolysis to liberate zero-CO2 hydrogen from natural gas using only a quarter of energy required by electrolysis, while coproducing a high-value carbon or petrochemical coproduct.

Pressure Corp

Photo by Anton Petrus/Getty

Houston-based Pressure Corp is developing waste pressure power systems to help midstream gas companies solve how they reduce emissions by providing the technology, capital and expertise required to achieve their environmental, social and governance goals.

STARS Technology

Photo via starsh2.com

Based in Richland, Washington, STARS Technology Corp. is commercializing advanced micro-channel chemical process technology that originally was designed for NASA and the Department of Energy. The company's reactors and heat exchangers are compact, energy-efficient, and more.

The Rice Alliance has named its second annual cohort. Photo via Getty Images

5 Houston energy tech companies named to Rice accelerator

seeing green

The Rice Alliance for Technology and Entrepreneurship has announced the 17 companies joining its second accelerator — and the program didn't have to venture very far for some of them.

The Rice Alliance Clean Energy Accelerator named the early- to mid-stage startups that will participate in its second annual class — five of which are based in Houston:

  • CLS Wind is developing a unique system to lift any size wind turbine component to any height using smaller-capacity cranes, an efficient, safe and economical solution to a lack of available high-capacity cranes and vessels.
  • Dsider is developing a low code solution for climate minded organizations to visualize and analyze their carbon pathways to plan, prioritize and operate sustainably and economically.
  • Emission Critical is developing carbon accounting and management software as a service to help enterprises solve end-to-end carbon footprinting with minimum effort
  • NanoTech is developing advanced materials to help businesses and individuals solve fireproofing and thermal insulation challenges with new world particles.
  • Pressure Corp is developing waste pressure power systems to help midstream gas companies solve how they reduce emissions by providing the technology, capital and expertise required to achieve their environmental, social and governance goals.

The 10-week program kicks off at the university’s Rice Alliance Energy Tech Venture Forum in September, and concludes on Demo Day on Nov. 17. While mostly virtual, the program will welcome the complete cohort to Houston three times throughout the accelerator.

The full cohort of companies — which come from seven states and four countries — has already collectively raised more than $54.5 million. Over the 10 weeks, the companies will receive support and mentorship to help them raise funding, launch pilots, win adoption into the marketplace, and more.

The 2022 cohort specializes across the spectrum of clean energy, including advanced materials, digital technology for energy, energy efficiency, energy storage, geothermal energy, hydrogen, waste heat to power, wave energy, and wind energy. The rest of the cohort includes:

  • Atargis Energy, based in Colorado, is developing an innovative twin hydrofoil-based wave energy converter technology combined with a proprietary feedback control system that combines real-time sensors, predictive algorithms and machine learning to make possible the first predictable, low-cost, utility-scale baseload electricity sourced from ocean waves for utilities and other electricity providers.
  • Based in Somerville, Massachusetts, Eden GeoPower Inc. is developing electrical reservoir stimulation technology to help geothermal, petroleum and mineral resource developers solve issues with low-permeability reservoirs by effectively increasing permeability in a way that uses less water and emits less CO2 than traditional stimulation methods.
  • FuelX has developed solid-state hydrogen power systems to help transportation manufacturers meet their customers’ growing performance requirements by using high-energy-density systems that outperform batteries and other pure hydrogen solutions. When coupled with a green hydrogen raw material, FuelX systems provide zero-carbon power.
  • GeoGen Technologies — a Canadian company — is developing a new kind of geothermal that allows oil and gas companies to convert end of life oil and gas wells to economic geothermal.
  • Durham, North Carolina-based GOLeafe uses organic materials and non-energy or capital-intensive equipment toproduce graphene oxide — the world's strongest, thinnest and most conductive material — through a process that’s 10 times more cost efficient and eco-friendly using readily available materials such as hay, sugar and wood chips.
  • LiNa Energy is commercializing safe, sustainable, solid-state sodium batteries that contain no lithium or cobalt.
  • Luminescent, based in the United Kingdom, is building an isothermal expansion heat engine for waste heat recovery along gas transmission pipelines.
  • Nobel improves fuel efficiency for gas-fired power plants with drop in, reliable supersonic combustion technology.
  • Quino Energy — based in California — produces low-cost, long-lifetime aqueous organic flow batteries for grid storage applications. The charge is stored in specially designed organic molecules called quinones, which are produced from cheap chemical precursors in a proprietary, zero-waste process.
  • Viridly, based in Texas,is developing geothermal power plants with patent-pending generator technology alongside geothermal greenhouses to provide the first financially viable way to confidently deliver and scale up the development of baseload geothermal electricity.
  • Another Canadian company, Volta Technique’s compressed air storage and management technology addresses the unpredictable and ever-increasing cost of energy for large commercial and industrial electricity users while enabling decarbonization of the electricity grid through higher integration of renewable energy.
  • Wootz, another Texas company, is developing a scalable manufacturing process to produce sustainable, cost-effective, high-performance carbon nanotube materials at commercial scale to replace or enhance traditional metallic conductors.

Twelve companies participated in Class 1 of the Rice Alliance Clean Energy, which was delivered virtually last summer. The 12 startups in that inaugural class have raised a combined $6.5 million in funding, identified and launched pilots, met investors, hired staff and moved their offices to Houston.

The program is supported by founding sponsor Wells Fargo and supporters: BP, Baker Botts, Chevron, ExxonMobil, Halliburton Labs, Equinor, Microsoft, NRG, Saudi Aramco Energy Ventures, Shell Ventures, Sunnova, TotalEnergies, Tudor Pickering Holt, Canadian Consulate, TC Energy, Phillips 66, and ENI Next.

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Houston doctor aims to revolutionize hearing aid industry with tiny implant

small but mighty

“What is the future of hearing aids?” That’s the question that led to a potential revolution.

“The current hearing aid market and technology is old, and there are little incremental improvements, but really no significant, radical new ideas, and I like to challenge the status quo,” says Dr. Ron Moses, an ENT specialist and surgeon at Houston Methodist.

Moses is the creator of NanoEar, which he calls “the world’s smallest hearing aid.” NanoEar is an implantable device that combines the invisibility of a micro-sized tympanostomy tube with more power—and a superior hearing experience—than the best behind-the-ear hearing aid.

“You put the NanoEar inside of the eardrum in an in-office procedure that takes literally five minutes,” Moses says.

As Moses explains, because of how the human cochlea is formed, its nerves break down over time. It’s simply an inevitability that if we live long enough, we will need hearing aids.

“The question is, ‘Are we going to all be satisfied with what exists?’” he asks.

Moses says that currently, only about 20 percent of patients who need hearing aids have them. That’s because of the combination of the stigma, the expense, and the hassle and discomfort associated with the hearing aids currently available on the market. That leaves 80 percent untapped among a population of 466 million people with hearing impairment, and more to come as our population ages. In a nearly $7 billion global market, that additional 80 percent could mean big money.

Moses initially patented a version of the invention in 2000, but says that it took finding the right team to incorporate as NanoEar. That took place in 2016, when he joined forces with cofounders Michael Moore and Willem Vermaat, now the company’s president and CFO, respectively. Moore is a mechanical engineer, while Vermaat is a “financial guru;” both are repeat entrepreneurs in the biotech space.

Today, NanoEar has nine active patents. The company’s technical advisors include “the genius behind developing the brains in this device,” Chris Salthouse; NASA battery engineer Will West; Dutch physicist and audiologist Joris Dirckx; and Daniel Spitz, a third-generation master watchmaker and the original guitarist for the famed metal band Anthrax.

The NanoEar concept has done proof-of-concept testing on both cadavers at the University of Antwerp and on chinchillas, which are excellent models for human hearing, at Tulane University. As part of the TMC Innovation Institute program in 2017, the NanoEar team met with FDA advisors, who told them that they might be eligible for an expedited pathway to approval.

Thus far, NanoEar has raised about $900,000 to get its nine patents and perform its proof-of-concept experiments. The next step is to build the prototype, but completing it will take $2.75 million of seed funding.

Despite the potential for making global change, Moses has said it’s been challenging to raise funds for his innovation.

“We're hoping to find that group of people or person who may want to hear their children or grandchildren better. They may want to join with others and bring a team of investors to offset that risk, to move this forward, because we already have a world-class team ready to go,” he says.

To that end, NanoEar has partnered with Austin-based Capital Factory to help with their raise. “I have reached out to their entire network and am getting a lot of interest, a lot of interest,” says Moses. “But in the end, of course, we need the money.”

It will likely, quite literally, be a sound investment in the future of how we all hear the next generation.

Houston VC funding surged in Q1 2025 to highest level in years, report says

by the numbers

First-quarter funding for Houston-area startups just hit its highest level since 2022, according to the latest PitchBook-NVCA Venture Monitor. But fundraising in subsequent quarters might not be as robust thanks to ongoing economic turmoil, the report warns.

In the first quarter of 2025, Houston-area startups raised $544.2 million in venture capital from investors, PitchBook-NVCA data shows. That compares with $263.5 million in Q1 2024 and $344.5 million in Q1 2023. For the first quarter of 2022, local startups nabbed $745.5 million in venture capital.

The Houston-area total for first-quarter VC funding this year fell well short of the sum for the Austin area (more than $3.3 billion) and Dallas-Fort Worth ($696.8 million), according to PitchBook-NVCA data.

While first-quarter 2025 funding for Houston-area startups got a boost, the number of VC deals declined versus the first quarters of 2024, 2023 and 2022. The PitchBook-NVCA Monitor reported 37 local VC deals in this year’s first quarter, compared with 45 during the same period in 2024, 53 in 2023, and 57 in 2022.

The PitchBook-NVCA report indicates fundraising figures for the Houston area, the Austin area, Dallas-Fort Worth and other markets might shrink in upcoming quarters.

“Should the latest iteration of tariffs stand, we expect significant pressure on fundraising and dealmaking in the near term as investors sit on the sidelines and wait for signs of market stabilization,” the report says.

Due to new trade tariffs and policy shifts, the chances of an upcoming rebound in the VC market have likely faded, says Nizar Tarhuni, executive vice president of research and market intelligence at PitchBook.

“These impacts amplify economic uncertainty and could further disrupt the private markets by complicating investment decisions, supply chains, exit windows, and portfolio strategies,” Tarhuni says. “While this may eventually lead to new domestic investment and create opportunities, the overall environment is facing volatility, hesitation, and structural change.”