Helix Earth was one of the winners of SXSW's 2025 pitch competition. Photo by Sergei A/Pexels

Houston clean-tech co. with NASA ties wins big at SXSW 2025

And the winner is...

Houston had a strong showing at the 2025 SXSW Pitch showcase in Austin, with two local startups claiming top prizes, including a novel clean-tech startup.

Clean-tech company Helix Earth, which spun out of Rice University and was incubated at Greentown Labs, won in the Smart Cities, Transportation & Sustainability contest.

"We faced impressive competition from a well-chosen set of finalists, and we're honored to be chosen as the winners. One of the judges even commented, ‘Who knew you could make air conditioning sexy,’” Brad Husick, Helix's co-founder and chief business officer, said in a release.

Helix Earth was launched in 2022 and is known for its space capsule air filtration system that was co-developed for NASA. The commercial air conditioner add-on technology, now in a pilot phase, has been used to retrofit HVAC systems for commercial buildings and can save up to 50 percent of the net energy, cutting down on emissions and operating costs, according to the company. Its co-founder and CEO Rawand Rasheed was named to the Forbes 30 Under 30 Energy and Green Tech list for 2025.

“This win validates our mission to drive sustainable innovation in commercial air conditioning and beyond. We are excited about the future of Helix Earth and the impact we will have in reducing energy consumption and emissions," Rasheed said in a statement.

Little Place Labs, a Houston space data startup, also walked away a winner in the Security, GovTech & Space competition. The company uses advanced AI and machine learning to deliver near-real-time space analytics for both ground and space-based applications. Its software aims to help first responders, mission planners and decision-makers detect anomalies and make informed decisions quickly. It was co-founded in 2020 at Oxford by Houstonian and CEO Bosco Lai and Gaurav Bajaj and participated in the 2023 AWS Space Accelerator.

"This all started with a simple mission: To deliver real-time space insights to help first responders, mission planners, and decision-makers act before problems arise,” Little Place Labs wrote on LinkedIn. "Today, that mission feels even stronger."

One of SWSX's marquee events, the pitch competition, held March 8-10, featured 45 finalists, selected from 589 applicants, in nine categories.

Two other Houston companies were finalists this year:
  • Trez, a Latino-focused fintech company that uses AI and voice-command payroll through WhatsApp to provide culturally relevant payroll and streamline financial operations for Latino business owners.
  • Tempesst Droneworx, a veteran-owned software company that's Harbinger software providing real-time contextual intelligence for early warning detection, reducing time to decision and speeding time to action.

Jesse Martinez, founder of invincible, and Anu Puvvada of KPMG were two judges representing Houston.

According to SXSW, 647 companies have participated in SXSW Pitch over the years, with over 93 percent receiving funding and acquisitions totaling nearly $23.2 billion. See the full list of 2025 winners here.

The teams at this year's Energy Venture Day and Pitch Competition have collectively raised $435 million in funding. Photo courtesy of CERAWeek

CERAWeek announces winners of annual clean tech pitch competition

top teams

Teams from around the world and right here in Houston took home prizes at the fourth annual Energy Venture Day and Pitch Competition at CERAWeek on March 12.

The fast-paced event, put on by Rice Alliance, Houston Energy Transition Initiative and TEX-E, invited 36 industry startups and five Texas-based student teams focused on driving efficiency and advancements toward the energy transition to present at 3.5-minute pitch before investors and industry partners during CERAWeek's Agora program. The competition is a qualifying event for the Startup World Cup, powered by Pegasus Venture, where teams compete for a $1 million investment prize.

The teams at this year's Energy Venture Day have collectively raised $435 million in funding.

Rice University student teams took home two of the three top prizes in the competition.

HEXASpec won the student track, known at TEX-E, taking home $25,000. The team's pitch focused on enhancing semiconductor chips’ thermal conductivity to boost computing power. Pattern Materials, another Rice-led team, claimed third place and won $10,000 for its proprietary LIG and LIGF technology that produces graphene patterns.

A team from the University of Texas McCombs School of Business, Nanoborne, took home second place and $15,000 for its engineering company focused on research and development in applied nanotechnology.

The companies that pitched in the three industry tracts competed for non-monetary awards. Here's who won:

Track A: Hydrogen, Fuel Cells, Buildings, Water, & Other Energy Solutions

Track B: Advanced Manufacturing, Materials, Fossil Energy, & Carbon Management

Track C: Industrial Efficiency, Decarbonization, Electricity, & the Grid

Arculus Solutions, which retrofits natural gas pipelines for safe hydrogen transportation, was named the overall winner and will move on to the Startup World Cup competition. California-based Membravo was also given a "golden ticket" to participate in the next NOV Supernova Accelerator cohort.

Teams at this year's Energy Venture Day represented five countries and 15 states. Click here to see the full list of companies and investor groups that participated.

Houston-based Solidec took home the top TEX-E price and $25,000 at last year's Energy Venture Day and Pitch Competition. Photo courtesy of HETI

50+ teams announced for CERAWeek's annual clean tech pitch competition

CERA pitches

The Rice Alliance for Technology and Entrepreneurship, the Houston Energy Transition Initiative and the Texas Entrepreneurship Exchange for Energy announced the 30-plus energy ventures and five student teams that will pitch at the 2025 Energy Venture Day and Pitch Competition during CERAWeek next month.

The ventures are focused on driving efficiency and advancements toward the energy transition and will each present a 3.5-minute pitch before a network of investors and industry partners during CERAWeek's Agora program.

The pitch competition is divided up into the TEX-E university track, in which Texas student-led energy startups compete for $50,000 in cash prizes, and the industry ventures track.

Teams competing in the TEX-E Prize track include:

  • ECHO
  • HEXAspec
  • HydroStor Analytics
  • Nanoborne
  • Pattern Materials

The industry track is subdivided into three additional tracks, spanning materials to clean energy and will feature 36 companies. The top three companies from each industry track will be named. The winner of the CERAWeek competition will also have the chance to advance and compete for the $1 million investment prize at the Startup World Cup in October 2025.

Teams come from around the world, including several notable Houston-based ventures, such as Corrolytics, Rheom Materials, AtmoSpark Technologies, and others. Click here to see the full list of companies and investor groups that will participate.

The pitch competition will be held Wednesday, March 12, at CERAWeek from 1-4:30 pm. An Agora pass is required to attend.

Those without passes can catch more than 50 companies at a free pitch preview at the Ion. Pitches will be followed by private meetings with venture capitalists, corporate innovation groups, industry leaders, and tech scouts. The preview will be held Tuesday, March 11, from 9:30 am to 2:30 pm at the Ion. It's free to attend, but registration is required. Click here to register.

Last year, Houston-based Solidec took home the top TEX-E price and $25,000 cash awards. The startup extracts molecules from water and air, then transforms them into pure chemicals and fuels that are free of carbon emissions. Its co-founder and Rice University professor Haotian Wang was recently awarded the 2025 Norman Hackerman Award in Chemical Research.

Here's what student-founded startups are leaving CERAWeek with fresh funding. Photo courtesy of HETI

Houston clean tech startup pitch competition awards prizes at annual CERAWeek event

big winners

For the third year, the Greater Houston Partnership's Houston Energy Transition Institute hosted its startup pitch competition at CERAWeek by S&P Global. A dozen startups walked away with recognition — and three some with cash prizes.

HETI joined partners Rice Alliance for Technology and Entrepreneurship and TEX-E for the 2024 Energy Venture Day and Pitch Competition at CERAWeek on Wednesday, March 20. Forty-two companies, which have collectively raised over $265 million in investment funding already, pitched to judges. Nine startups won awards across three tracks.

TEX-E, a Texas nonprofit that supports student-founded upstarts, had five of its companies pitch and three winners walked away with monetary prizes. Teams that competed in the TEX-E Prize track, many of which come from Houston universities, include:

  • AirMax, University of Texas at Austin
  • BeadBlocker, University of Houston
  • Carvis Energy Solutions, Texas A&M University
  • Coflux Purification, Rice University
  • Solidec, Rice University

Solidec, which is working on a platform to produce chemicals from captured carbon, won first place and $25,000. The company also recently scored a $100,000 grant from Rice's One Small Step Grant program, as well as a voucher from the DOE. Coflux Purification, which has a technology that destroys PFAS in filtration, won second place and$15,000. The company also secured a One Small Step Grant to the tune of $80,000. AirMax, which focuses on optimizing sustainability for air conditioning equipment, won third place and $10,000.

Last year, Houston-based Helix Earth Technologies took home the top TEX-E price and $25,000 cash awards. The venture, founded by Rawand Rasheed and Brad Husick from Rice University, developed high-speed, high-efficiency filter systems derived from technology originating at NASA.

The rest of the companies that pitched competed for non-monetary awards. Here's what companies won:

  • Group A (CCUS, oilfield solutions, analytics and minerals):
    • First place: Ardent
    • Second place: Vaulted Deep
    • Third place: Mitico
  • Group B (batteries, renewables, water, and grid technology):
    • First place: SungreenH2
    • Second place: FeX Energy
    • Third place: Mercurius Biorefining
  • Group C (Mobility, Materials, and hydrogen solutions)
    • First place: Thiozen
    • Second place: Power2Hydrogen
    • Third place: Arolytics
  • People's choice: Decimetrix
HETI, Rice Alliance, and TEX-E celebrated the winners at a private reception on Wednesday evening.

———

This article originally ran on InnovationMap.

The pitch day will feature more than 40 energy ventures driving efficiency and advancements toward the energy transition showcasing their companies. Photo via htxenergytransition.org

HETI, collaborators open pitch competition applications for annual CERAWeek event

the view from heti

The Rice Alliance for Technology and Entrepreneurship, the Houston Energy Transition Initiative (HETI) and TEX-E have opened applications for their Energy Venture Day and Pitch Competition at CERAWeek, set to take place in the Agora program on March 20.

The pitch day will feature more than 40 energy ventures driving efficiency and advancements toward the energy transition showcasing their companies. The fast-paced competition is designed to connect energy startups with venture capitalists, corporate innovation groups, industry leaders, academics and service providers.

Ventures will be showcased across three industry tracks, spanning materials to clean energy. Industry experts and investors will judge the pitches, and the top three ventures from each track will be named at the conclusion of the event. The pitches from energy ventures will include a university track, the TEX-E Prize, highlighting the innovation of five Texas student-led energy startups. With mentorship leading up to the competition, these student startups will compete for $50,000 in cash prizes.

“The goal of the TEX-E Prize is to support, encourage and inspire students across the state of Texas to pursue entrepreneurship as a means of reducing emissions and building a healthier, more resilient society,” said David Pruner, executive director at TEX-E.

Energy ventures for all tracks of the competition are asked to apply by Feb. 9. More details about eligibility can be found at alliance.rice.edu/EVD.

“The Energy Venture Day and Pitch Competition at CERAWeek bring together key members of the energy ecosystem, investors and startups to showcase innovations and emerging technologies that create value from the world’s transition to low-carbon energy systems,” said Jane Stricker, senior vice president at the Greater Houston Partnership and executive director of HETI. “We are thrilled to partner with our ecosystem partner, Rice Alliance, on this exciting event at CERAWeek and build on the momentum of the last few years.”

“In addition to the access to investors and awareness at CERAWeek, this is an invaluable opportunity to pitch in front of active investors, corporates and key players in the energy industry,” said Brad Burke, executive director of the Rice Alliance and vice president for industry and new ventures in Rice’s Office of Innovation. “The Energy Venture Day and Pitch Competition at CERAWeek is a platform designed to foster innovation, collaboration and investment in the ever-evolving energy landscape.”

Learn more about this year’s pitch day here.

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7 must-attend Houston energy transition events in August 2025

Must-Attend Meetings

Editor's note: It's time to mark your calendars for the top Houston energy events this month. From globally-focused forums to intimate conversations with Houston energy leaders, these events are not to be missed, so begin registering today. Please note: this article may be updated to include additional event listings.

August 6-7 — U.S.-Africa Energy Forum

The U.S.-Africa Energy Forum (USAEF) connects the U.S. market with Africa’s vast energy sector opportunities. The forum empowers participants to uncover emerging opportunities in Africa’s energy sector, positioning licensing rounds and projects as prime conduits for U.S. investment. By bringing together investors, governments, and project developers, the forum fosters meaningful partnerships, expands investor networks, and paves the way for impactful collaborations across the energy value chain.

This event begins August 6 at the Post Oak Hotel. Click here to register.

August 21 — Transition on Tap

Greentown Labs’ signature networking event returns in August to foster conversations and connections within Houston's climate and energy transition ecosystem. Entrepreneurs, investors, students, philanthropists, and more are invited to attend, meet colleagues, discuss solutions, and engage with the growing community.

This event takes place Thursday, August 21 at 5:30 pm at Greentown Labs. Click here to register.

August 22 – Determined to Lead Women Lunch: Investing Through Market Cycles with Ellen Wilkirson

EnergyTech Nexus hosts a monthly Determined to Lead Women’s Lunch as part of its ongoing efforts to create safe spaces for women leaders in the energy transition to connect, learn, and lead. The August session features Ellen Wilkirson, principal at Rev Innovations. With deep experience across traditional and transition energy sectors, Wilkirson will share how she’s approached investing through multiple market and commodity cycles and what it means to be a clean energy investor in today’s evolving landscape.

This event takes place Friday, August 22 at 1 pm. Click here to register.

August 25-28 — IMAGE 2025

Join the world's premier gathering for geoscientists, energy professionals, and industry leaders to connect, collaborate, and innovate. IMAGE 2025 will feature 1,100 presentations and 260 exhibitors. It will connect more than 7,800 energy leaders from more than 90 countries. In addition to four days of programming, guests can attend pre-convention field trips on August 23-25 and post-convention workshops on August 29.

This event begins August 25 at George R. Brown Convention Center. Click here to register.

August 27 — Future of Flight: Inside Venus Aerospace with Founder Sassie Duggleby

Join EO Houston for an exclusive, behind-the-scenes conversation with Sassie Duggleby, co-founder and CEO of Venus Aerospace, a Houston-based company pioneering breakthrough propulsion systems for hypersonic and space applications.

This event takes place Wednesday, August 27 at 10 am at Venus Aerospace. It is open to EO members and partners only. Click here to register.

August 27 — Work Wednesday Lunch AMA with Scott Craig

EnergyTech Nexus will host a Work Wednesday Lunch & Learn with special guest Scott Craig from Latham Watkins LLP. This recurring event is an opportunity for founders andc ommunity members to connect, network, and share ideas, with a focus on exploring the latest trend sin climate technology. Craig advises startups and investors across climate tech, energy transition, and frontier technology and has firsthand insight into structuring early-stage deals and navigating regulatory complexity.

This event takes place Wednesday, August 27 at 12 pm at One Memorial City Plaza. Click here to register.

August 27-28 — 6th Texas Energy Forum 2025

The 6th Texas Energy Forum will dive deep into the strategies, policies, and innovative solutions that reinforce energy security for the United States and its allies and fuel economic growth — centered on Texas’ pivotal role in the global energy landscape. Key discussions will address the future of regulatory reform, tariffs, and tax incentives; advancements in oil, gas, and LNG markets; the expansion of power generation; and breakthroughs in EVs and charging infrastructure. This year's topic is "Texas: The Energy Innovation Powerhouse."

This event begins Wednesday, August 27 at the Petroleum Club of Houston. Click here to register.

Japanese energy tech manufacturer officially relocates U.S. HQ to Houston

new to hou

TMEIC Corporation Americas has officially relocated its headquarters from Roanoke, Virginia, to Houston.

TMEIC Corporation Americas, a group company of Japan-based TMEIC Corporation Japan, recently inaugurated its new space in the Energy Corridor, according to a news release from TMEIC. The new HQ occupies the 10th floor at 1080 Eldridge Parkway, according to ConnectCRE. The company first announced the move last summer.

TMEIC Corporation Americas specializes in photovoltaic inverters and energy storage systems. It employs approximately 500 people in the Houston area, and has plans to grow its workforce in the city in the coming year as part of its overall U.S. expansion.

"We are thrilled to be part of the vibrant Greater Houston community and look forward to expanding our business in North America's energy hub," Manmeet S. Bhatia, president and CEO of TMEIC Corporation Americas, said in the release.

The TMEIC group will maintain its office in Roanoke, which will focus on advanced automation systems, large AC motors and variable frequency drive systems for the industrial sector, according to the release.

TMEIC Corporation Americas also began operations at its new 144,000-square-foot, state-of-the-art facility in Brookshire, which is dedicated to manufacturing utility-scale PV inverters, earlier this year. The company also broke ground on its 267,000-square-foot manufacturing facility—its third in the U.S. and 13th globally—this spring, also in Waller County. It's scheduled for completion in May 2026.

"With the global momentum toward decarbonization, electrification, and domestic manufacturing resurgence, we are well-positioned for continued growth," Bhatia added in the release. "Together, we will continue to drive industry and uphold our legacy as a global leader in energy and industrial solutions."