Over 90 percent of students will work with a digital textbook at some point this year. Getty Images

More and more students and educational institutions are opting out of physical textbooks each year. One company leading the digital textbook revolution is located right here in Houston.

OpenStax is a Rice University-based publisher of open educational resources. The company has been publishing its free resources since 2012, growing its presence to over 36 college and Advanced Placement courses, according to a news release from Rice.

This year, over 90 percent of students will log on to free textbooks digitally in some way — through a website, PDF, or on OpenStax, the release states, and OpenStax new app received almost 58,000 downloads in just a month.

"We are exceeding even our own expectations of growth and impact on a daily basis," says Daniel Williamson, managing director of OpenStax, in a release. "This tells us that people believe in what we've created and that we need to keep going."

The company, which focuses on access to textbooks for students, also provides print books at a lower cost, and OpenStax entered into a deal with Vretta Inc. to expand this print program to Canada earlier this year.

OpenStax itself is responsible for saving 9 million students over $830 million, per the release, not the mention the fact that digital resources is driving the cost of textbooks down in general.

"Until a few years ago the college textbook bubble had seen sustained growth — textbook prices had risen 800 percent over 50 years," says Mark Perry, a scholar at The American Enterprise Institute and professor of economics and finance at the University of Michigan, in the release. "In 2017, there was a market-wide drop in textbook prices, and I believe that free alternatives like OpenStax books are central to that disruption."

OpenStax has plans to continue its growth with the launch of Rover by OpenStax, which is a low-cost online math tool that incorporates a step-by-step feedback technology called Stepwise.

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Houston maritime startup raises $43M to electrify vessels, opens new HQ

Maritime Mission

A Houston-based maritime technology company that is working to reduce emissions in the cargo and shipping industry has raised VC funding and opened a new Houston headquarters.

Fleetzero announced that it closed a $43 million Series A financing round this month led by Obvious Ventures with participation from Maersk Growth, Breakthrough Energy Ventures, 8090 Industries, Y Combinator, Shorewind, Benson Capital and others. The funding will go toward expanding manufacturing of its Leviathan hybrid and electric marine propulsion system, according to a news release.

The technology is optimized for high-energy and zero-emission operation of large vessels. It uses EV technology but is built for maritime environments and can be used on new or existing ships with hybrid or all-electric functions, according to Fleetzero's website. The propulsion system was retrofitted and tested on Fleetzero’s test ship, the Pacific Joule, and has been deployed globally on commercial vessels.

Fleetzero is also developing unmanned cargo vessel technology.

"Fleetzero is making robotic ships a reality today. The team is moving us from dirty, dangerous, and expensive to clean, safe, and cost-effective. It's like watching the future today," Andrew Beebe, managing director at Obvious Ventures, said in the news release. "We backed the team because they are mariners and engineers, know the industry deeply, and are scaling with real ships and customers, not just renderings."

Fleetzero also announced that it has opened a new manufacturing and research and development facility, which will serve as the company's new headquarters. The facility features a marine robotics and autonomy lab, a marine propulsion R&D center and a production line with a capacity of 300 megawatt-hours per year. The company reports that it plans to increase production to three gigawatt-hours per year over the next five years.

"Houston has the people who know how to build and operate big hardware–ships, rigs, refineries and power systems," Mike Carter, co-founder and COO of Fleetzero, added in the release. "We're pairing that industrial DNA with modern batteries, autonomy, and software to bring back shipbuilding to the U.S."

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This article originally appeared on EnergyCapitalHTX.com.

Innovative Houston-area hardtech startup closes $5M seed round

fresh funding

Conroe-based hardtech startup FluxWorks has closed a $5 million seed round.

The funding was led by Austin-based Scout Ventures, which invests in early-stage startups working to solve national security challenges.

Michigan Capital Network also contributed to the round from its MCN Venture Fund V. The fund is one of 18 selected by the Department of Defense and Small Business Administration to participate in the Small Business Investment Company Critical Technologies Initiative, which will invest $4 billion into over 1,700 portfolio companies.

FluxWorks reports that it will use the funding to drive the commercialization of its flagship Celestial Gear technology.

"At Scout, we invest in 'frontier tech' that is essential to national interest. FluxWorks is doing exactly that by solving critical hardware bottlenecks with its flagship Celestial Gear technology ... This is about more than just gears; it’s about strengthening our industrial infrastructure," Scout Ventures shared in a LinkedIn post.

Fluxworks specializes in making contactless magnetic gears for use in extreme conditions, which can enhance in-space manufacturing. Its contactless design leads to less wear, debris and maintenance. Its technology is particularly suited for space applications because it does not require lubricants, which can be difficult to control at harsh temperatures and in microgravity.

The company received a grant from the Texas Space Commission last year and was one of two startups to receive the Technology in Space Prize, funded by Boeing and the Center for the Advancement of Science in Space (CASIS), in 2024. It also landed $1.2 million through the National Science Foundation's SBIR Phase II grant this fall.

Fluxworks was founded in College Station by CEO Bryton Praslicka in 2021. Praslicka moved the company to Conroe 2024.