Tired of slow tire decomposition? This Houston company has a solution. Photo via InnoVentRenewables.com

Every year, over a billion tires are disposed of globally, and, while in use, tires are used to reach maximum speed on the road, their decomposition times are inordinately slow.

Houston-based InnoVent Renewables has a solution. The company launched this week to drive renewable energy forward with its proprietary continuous pyrolysis technology that is able to convert waste tires, plastics, and biomass into fuels and chemicals.

“We are thrilled to formally launch InnoVent Renewables and plan to ramp-up operations into early 2024," InnoVent Renewables CEO Vibhu Sharma says in a news release. “Our investors, strategic advisors, and management team are all fully committed to our success as we address the global challenge of waste tires. We firmly believe our proven process, deployed at scale globally, will have a huge positive impact on our climate and fill a clear environment need.”

While InnoVent Renewables has only just launched, Sharma has worked in the space for years with his company InnoVent Technology, a technology and consulting company working with clients on turnkey process technology and asset management solutions within the process and manufacturing industries.

During InnoVent's unique material breakdown process, its pyrolysis technology recovers chemicals from the products, and produces high-quality fuels — in in a net-zero capacity. The company's products include renewable pyrolysis oil, or PyOil; aromatics; recovered carbon black, or rCB; and steel wire. PyOil, according to InnoVent's website, can be sold as fuel oil, off-road diesel, or used as a feedstock to crude blending.

"The InnoVent team conducted product quality analysis in conjunction with a world renowned research facility and results were further validated and scaled up in 2022, using comprehensive process simulation software and pre-engineering design work for scale-up," reads the InnoVent website.

Headquartered in Houston, the company has operations in Pune, India, and Monterrey, Mexico, with plans for aggressive growth across North America and Latin America. Specifically, InnoVent is planning to open a commercial production plant in Monterrey next year. Down the road, the company's team hopes to expand in Europe, the Middle East, and Asia-Pacific.

This autonomous freight delivery provider has entered the Texas market. Photo via VAS

Companies in Transition: June 13

ENERGY FOR ALL, BY ALL

As explained at the launch event for EnergyCapitalHTX.com on 1 June by David Gow, CEO of Gow Media, “…we plan to provide informative, unbiased coverage of the Houston-based initiatives, spanning big corporations and startups. We hope that a site dedicated to the transition will bring visibility to the city’s substantive progress and to the path forward.”

This series, Companies in Transition, highlights the latest energy transition activity happening here in the world’s Capital of Energy for companies of all sizes and stages. Natalie Harms, editor of our sister site, Innovation Map, caught up with a couple of such companies making strides last week.

Volvo Group announces new self-driving freight routes across Texas

A global car brand has expanded its autonomous transport-as-a-service company to Texas.

Volvo Autonomous Solutions, or VAS, announced it has established an office in Fort Worth to set up its first self-driving freight corridors between Dallas-Fort Worth and El Paso, as well as from Dallas to Houston. Ahead of commercial launch, VAS has started hauling freight for key customers like DHL and Uber Freight for testing purposes.

"At Volvo Autonomous Solutions, we believe the path to autonomy at scale is through reducing the friction and complications around ownership and operations for customers," says Nils Jaeger, president of VAS, in a news release. "This is why we have taken the decision to be the single interface to our customers and take full ownership of the elements required for commercial autonomous transport. With the opening of our office in Texas and start of operational activities, we are building the foundations for a transport solution that will change the way we move goods on highways."

As a part of the Volvo Group, VAS provides its Autonomous Transport Solutions — a combination of hardware, software, and services — to its customers. The company has a partnership with Aurora, which includes the integration of the Aurora Driver with Volvo's on-highway truck offering.

To learn more about how Volvo is building efficiency for the entire supply chain, head on over to InnovationMap to read more.

Multinational manufacturer partners with Greentown for new startup accelerator

A climatetech incubator with locations in Houston and Somerville, Massachusetts, has announced an accelerator program with a corporate partner.

Greentown Labs and Saint-Gobain, a multinational manufacturer and distributor of high-performance materials, have opened applications for Greentown Go Build 2023. The program intends to support and accelerate startup-corporate partnerships to advance climatetech, specifically focused on circularity and decarbonizing the built environment per a news release from Greentown.

“The Greentown Go Build program is an opportunity for innovative startups to share how they are disrupting the construction market with innovative and sustainable solutions that address the need for circularity and sustainability and that align with our mission of making the world a better home,” says Minas Apelian, vice president of external and internal venturing at Saint-Gobain. “Through this program, we are eager to identify companies dedicated to reducing our reliance on raw materials and associated supply chain risk to ensure circular solutions result in profitable, sustainable growth for business and sustainable construction solutions for our industries.”

Find out if your company is a fit for this prestigious opportunity over at InnovationMap.

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Texas City ammonia plant acquired by Yara in $1.3 billion deal

Ammonia Acquisition

Yara North America, a subsidiary of Norwegian fertilizer and ammonia producer Yara International, has agreed to buy an ammonia production plant in Texas City for $1.3 billion.

The seller is GCA Holdings, an affiliate of Texas City-based chemical manufacturer Gulf Coast Ammonia, which is owned by private equity firms Lotus Infrastructure Partners and MB Energy.

The Texas City plant, with an eventual annual capacity of 1.3 million metric tons, is expected to start full production by the end of this year. Yara says the ammonia produced by the plant will serve its own fertilizer production system and its key customers.

During a recent call with analysts and investors, Magnus Ankarstrand, executive vice president and CFO of Yara International, said the plant holds the potential to become one of the company’s most profitable plants. The $1.3 billion purchase price, he added, “is a very attractive entry ticket to ammonia production in the U.S. at a very attractive cost.”

The Texas City plant will add to Yara’s holdings in the Lone Star State, as Yara is the majority owner of an ammonia, hydrogen and nitrogen production plant in Freeport.

Construction of the ammonia plant began in 2020, but technical and infrastructure issues delayed the project. On its website, Gulf Coast Ammonia says the plant represented a $600 million investment.

“Gulf Coast Ammonia is a world-class asset that required disciplined execution across development, financing, construction, and commercial structuring,” Philipp Pletka, managing director of Lotus Infrastructure Partners, says in a news release.

Trexlertown, Pennsylvania-based Air Products, which owns and operates the country’s largest hydrogen pipeline network, will continue to supply hydrogen and nitrogen for the plant under a long-term deal with Yara, according to the release.

However, the news comes two days after Yara International announced that it would no longer be purchasing ammonia assets in the Louisiana Clean Energy Complex (LCEC) from Air Products. In a separate release, Yara said it planned to reallocate funds toward "alternative mature U.S. ammonia investment opportunities with more competitive returns."

Houston hypersonic engine company lands $91M to accelerate production

Clean Speed

Houston-based Venus Aerospace has closed a $91 million Series B round and plans to scale the production of its hypersonic engine.

The round was led by Houston-based Mercury Fund with participation from Lockheed Martin Ventures, MESH, PEAK6, Draper Associates, Starboard Star Venture Capital, Green Sands Equity and other investors, according to a news release.

The investment comes about a year after Venus completed the first U.S. flight test of its high-thrust rotating detonation rocket engine (RDRE). The engine is expected to enable vehicles to travel four to six times the speed of sound from a conventional runway and is about 15 percent more efficient than traditional alternatives, according to the company.

Venus Aerospace says the latest round of funding will allow it to move the RDRE from demonstration to deployment and meet customer requirements for the near-term defense and space industries. The company says that the reusable RDRE is designed with a "common propulsion architecture" that can work for multiple industries and mission types.

“This financing marks an important step in moving Venus from breakthrough demonstration to scaled capability,” Sassie Duggleby, co-founder and CEO, said in the news release. “Our customers need propulsion systems that go farther, can be produced reliably and are built on supply chains they can trust. We are advancing that capability with American engineering and manufacturing talent to strengthen U.S. defense, expand space access and support the future of high-speed flight.”

Venus Aerospace raised a $20 million Series A in 2022, led by Wyoming-based Prime Movers Lab. At the time, the company said it would put the funding toward three main technologies: a next-generation rocket engine, aircraft shape and leading-edge cooling system.

The company also picked up an investment from Lockheed Martin Ventures, the investment arm of aerospace and defense contractor Lockheed Martin, in November 2025—in addition to funding from other investors over the years.

“Since our initial investment, Venus has progressed very quickly in its technology development," Chris Moran, vice president and general manager of Lockheed Martin Ventures, added in the release. "Our reinvestment in Venus recognizes Venus’ accomplishments to date and focus on speed to manufacture, cost management and reduction of supply chain constraints. Venus is working effectively to position its propulsion system for the production scale required by defense programs.”

"Venus is exactly the kind of company Houston capital should be backing," Blair Garrou, co-founder and managing partner at Mercury Fund, added in the release. "It combines multiple frontier technologies, domestic manufacturing and clear commercial and national security relevance. We believe this team is positioned to lead an important new chapter in defense and space, and we are proud to support a company building breakthrough technology here in Texas."

Venus Aerospace and Houston clean tech startup Vaulted Deep were also named to the World Economic Forum's Technology Pioneers community earlier this summer.

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This article first appeared on InnovationMap.com.

14 climatech startups join Greentown Houston in first half of 2026

green team

Climatech incubator Greentown Labs reports that 14 startups have joined its Houston community so far this year.

The companies are among 30 new startups to have joined Greentown Houston and Greentown Boston in 2026. Four of the companies are headquartered in Houston.

The startups are working on a range of "hydrogen-powered heavy-duty transport to AI-driven grid interconnection," according to Greentown.

The local startups that joined Greentown Houston include:

  • Houston-based Focis AI, which transforms industrial laser scans into structured asset intelligence to automatically identify, classify and map components in refineries and plants
  • Houston-based Iron Lattice, which develops next-generation memory technology for AI and high-performance computing that improves energy efficiency, endurance and scalability while remaining compatible with existing semiconductor manufacturing
  • Houston-based Orbital Arc, which is developing a new ion engine designed to improve the efficiency and scalability of spacecraft propulsion from low Earth orbit to deep space
  • Houston-based Sustain Energy LLC, which delivers cleaner, lower-cost fuel to industrial customers in pipeline-absent, underserved markets, cutting their energy costs and emissions with no infrastructure investment on their end

Other startups from around the world joined the Houston incubator in the same time period, including:

  • Ankara-based AIS Field, which develops robotic, AI-assisted non-destructive inspection systems, including submersible tank and boiler crawlers
  • San Francisco-based Armada AI, which builds rapidly deployable modular and edge data centers that run on local, stranded, or renewable power
  • San Francisco-based Armeta, which turns complex engineering drawings and legacy documentation into structured, usable data
  • Pittsburgh-based Atlas Robotics, which develops a Physical AI platform that powers autonomous material-handling robots and AI-guided forklifts
  • Ghana-based Cocoa Potash, which transforms high-emissions agricultural waste from cocoa, coconut, and palm-nut into organic potash, fertilizer and renewable energy
  • Israel-based Criaterra, which produces low-carbon, cement-free building materials
  • Italy-based ETAK, which manufactures modular reactors that convert solid waste into clean syngas
  • Kenya-based FelixFusion, which uses its Felix platform to model every grid connection point, including capacity, upgrade costs, and constraints
  • San Diego-based Gemini Energy, which builds next-generation fuel cells for data-center power
  • Tokyo-based Hibot, which develops robotic systems for inspecting and maintaining infrastructure in hazardous, hard-to-access environments
  • Austin-based Sheetak, which designs and manufactures thermoelectric coolers, generators, and assemblies for solid-state cooling and energy harvesting
  • The Netherlands-based ToPerform, which makes AI-powered, non-intrusive fouling sensors that monitor pipelines around the clock and predict the optimal cleaning time

Another 16 startups joined Greentown's Boston incubator. See the full list of new members here.

More than 100 startups joined Greentown last year, according to an end-of-year reflection shared by Greentown CEO Georgina Campbell Flatter. Read more about them here.