Growing Houston blockchain startup has raised $4 million to go toward supporting sales growth. Graphic courtesy of Data Gumbo

An industrial blockchain-as-a-service startup based in Houston has closed a series B funding round thanks to support from both new and returning investors.

Data Gumbo Corp., which uses its blockchain network GumboNet to optimize smart contracts for oil and gas supply chains, announced its first close in its $4 million series B funding round that was led by new investor L37, which has operations in the Bay Area and in Houston. The round also saw contribution from returning investors Equinor Ventures and Saudi Aramco Energy Venture.

The funds will go toward growing Data Gumbo's sales team, which has been busy with the company's growth. While providing their own set of challenges and obstacles, both the pandemic and drop in oil prices meant oil and gas companies are prioritizing lean operations — something DataGumbo is able to help with.

"The opportunity in all this is companies have got to cut expenses," Andrew Bruce, CEO and founder, tells InnovationMap. "What's happened to us is our sales have absolutely exploded — in a good way. We have a huge number of leads, and we have to be able to deliver on those leads."

Bruce says leading the sales growth is Bill Arend, who was hired Data Gumbo's chief commercial officer this spring. Data Gumbo also recently announced that Richard Dobbs, 30-year veteran of McKinsey and former director of the McKinsey Global Institute, has joined the board as chairman.

"Dobbs is a recognized strategic industry thinker," Bruce says in a release. "His distinct expertise will lend structure, support and validation to Data Gumbo as we experience aggressive company growth."

Of course, fundraising in this unprecedented time, isn't easy. Bruce says he and his team were able to succeed thanks to a new investor, L37, which came from an introduction within Bruce's network.

"Data Gumbo is the category leader for industrial smart contracts, which is an inevitable next step in digital transformation of the oil and gas industry," says Kemal Farid, a partner in L37, in a statement. "There is a lack of transparency, visibility and accuracy between counterparts of contracts that increases the costs of doing business and this has been greatly exacerbated by the current business landscape. We look forward to applying our experience to propel the company along its journey to bring transactional certainty and cost efficiency to commercial relationships."

Additionally, Bruce says he's very proud of his company's return investors, who are also clients of DataGumbo.

"[We also have] the continuous support by our original investors — Aramco and Equinor — they invested in us not just once but twice," Bruce says. "They have been tremendously supportive, not just from an investor perspective, but also proving the value. We've got multiple projects starting with both of those companies."

Bruce says he already has eyes for another venture capital round — perhaps sometime next year — for Data Gumbo, which has raised $14.8 million to date. However, the company isn't far from profitability and growth from that avenue too.

"We're going to have the luxury of choice," Bruce says. "We want to grow as aggressively as possible so we are probably going to go the venture capital route."


GumboNet: Smart Contacts Made Simplewww.youtube.com

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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.”