Houston-based Nauticus Robotics has a new CEO and fresh funding. Photo via Nauticus

In the wake of a leadership reshuffling and amid lingering financial troubles, publicly traded Nauticus Robotics, a Webster-based developer of subsea robots and software, has netted more than $12 million in a second tranche of funding.

The more than $12 million in new funding includes a $9.5 million loan package.

Nauticus says the funding will accelerate certification of the company’s flagship Aquanaut robot, which is being prepared for its inaugural mission — inspecting a deep-water production facility in the Gulf of Mexico that’s owned by a major oil and gas company.

The new funding comes several weeks after the company announced a change in leadership, including a new interim CEO, interim chief financial officer, and lead general counsel.

Former Halliburton Energy Services executive John Gibson, the interim CEO, became president of Nauticus last October and subsequently joined the board. Gibson replaced Nauticus founder Nicolaus Radford in the CEO role. Radford’s LinkedIn profile indicates he left Nauticus in January 2024, the same month that Gibson stepped into the interim post.

Radford founded what was known as Houston Mechatronics in 2014.

Victoria Hay, the new interim CFO at Nauticus, and Nicholas Bigney, the new lead general counsel, came aboard in the fourth quarter of 2023.

“We currently have the intellectual property, prototypes, and the talent to deliver robust products and services,” Gibson says in a news release. “Team Nauticus is now laser-focused on converting our intellectual property, including both patents and trade secrets, into differentiated solutions that bring significant value to both commercial and government customers.”

A couple of weeks after the leadership shift, the NASDAQ stock market notified Nauticus that the average closing price of the company’s common stock had fallen below the $1-per-share threshold for 30 consecutive trading days. That threshold must be met to maintain a NASDAQ listing.

Nauticus was given 180 days to lift its average stock price above $1. If that threshold isn’t reached during that 180-day period, the company risks being delisted by NASDAQ. The stock closed February 6 at 32 cents per share.

The stock woes and leadership overhaul came on the heels of a dismal third-quarter 2023 financial report from Nauticus. The company’s fourth-quarter 2023 financial report hasn’t been filed yet.

For the first nine months of 2023, Nauticus reported an operating loss of nearly $20.9 million, up from almost $11.3 million during the same period a year earlier. Meanwhile, revenue sank from $8.2 million during the first nine months of 2022 to $5.5 million in the same period a year later.

Nauticus went public in September 2022 through a SPAC (special purpose acquisition company) merger with New York City-based CleanTech Acquisition Corp., a “blank check” company that went public in July 2021 through a $150 million IPO. The SPAC deal was valued at $560 million when it was announced in December 2021.

Nauticus recently hired investment bank Piper Sandler & Co. to help evaluate “strategic options to maximize shareholder value.”

One of the strategic alternatives involves closing Nauticus’ previously announced merger with Houston-based 3D at Depth, which specializes in subsea laser technology. When it was unveiled last October, the all-stock deal was valued at $34 million.

------

This article originally ran on EnergyCapital.

Nauticus Robotics has extended a contract with one of its biggest customers. Photo via nauticusrobotics.com

Houston robotics startup secures $2.1M contract extension with engineering tech co.

customer success

A Houston startup has just secured an extended contract with a major customer.

Webster-based Nauticus Robotics, a maker of autonomous oceangoing robots, has bulked up its current contract with Reston, Virginia-based Leidos in a $2.1 million extension.. That brings Leidos’ total financial commitment from $14.5 million to $16.6 million.

In partnership with Leidos, Nauticus is developing next-generation underwater drones for business and military customers. These unmanned underwater vehicles are being designed to carry out tasks that are dangerous or impossible for human divers to do, such as mapping the ocean floor, studying sea creatures, and monitoring water pollution.

“This very important work combines great attributes from each company to deploy a truly novel subsea capability,” says Nicolaus Radford, founder and CEO of Nauticus.

Based on Nauticus’ Aquanaut product, these robots will feature the company’s toolKITT software, which supplies artificial intelligence capabilities to undersea vehicles.

“This work is the centerpiece of Nauticus’ excellent collaboration with Leidos,” says Radford, “and I look forward to continuing our mutual progress of advancing the state of the art in undersea vehicles.”

Founded in 2014 as Houston Mechatronics, Nauticus adopted its current branding in 2021. Last year, Nauticus became a publicly traded company through a merger with a “blank check” company called CleanTech Acquisition Corp.

During the first six months of 2023, Nauticus generated revenue of nearly $4 million, down from a little over $5.2 million in the same period last year. Its operating loss for the first half of 2023 was almost $12.7 million, up from slightly more than $5.2 million during the same time in 2022.

Nauticus attributes some of the revenue drop to delays in authorization of contracts with government agencies.

The company recently lined up a $15 million debt facility to bolster its operations.

“I’ve never been more optimistic about the future of Nauticus. We employ some of the best minds in the industry, and we are positioned with the right product at the right time to disrupt a $30 billion market,” Radford said earlier this month. “Demand from potential customers is high, but constructing our fleet is capital-intensive.”

More good news for Nauticus: It recently signed contracts with energy giants Shell and Petrobras. Financial terms weren’t disclosed.

The Shell contract involves a project in the Gulf of Mexico’s Princess oil and gas field that Nauticus says could lead to millions of dollars in additional contracts over the next few years. Shell operates the offshore field, which is around 40 miles southeast of New Orleans, and owns a nearly 50 percent stake in it.

Co-owners of the Princess project are Houston-based ConocoPhillips, Spring-based ExxonMobil, and London-based BP, whose North American headquarters is in Houston. In July, the Reuters news service reported that ConocoPhillips was eyeing a sale of its stake in the Princess field.

Under the contract with Petrobras, whose U.S. arm is based in Houston, Nauticus will dispatch its Aquanaut robot to support the Brazilian energy company’s offshore activities in South America. Nauticus says this deal “opens up a potential market opportunity” in Brazil exceeding $100 million a year.

------

This article originally ran on EnergyCapital.

Ad Placement 300x100
Ad Placement 300x600

CultureMap Emails are Awesome

Houston VC funding surged nearly 50% in Q1 2026, report says

VC victories

First-quarter venture capital funding for Houston-area startups climbed nearly 50 percent compared to the same time last year, according to the PitchBook-NVCA Venture Monitor.

In Q1 2026, Houston-area startups raised $532.3 million, a 49 percent jump from $320.2 million in Q1 2025, according to the PitchBook-NVCA Venture Monitor.

However, the Q1 total fell 23 percent from the $671.05 million raised in Q4 2025.

Among the first-quarter funding highlights in Houston were:

  • Utility Global, which focuses on industrial decarbonization, announced a first close of $100 million for its Series D round.
  • Sage Geosystems raised a $97 million Series B round to support its geothermal energy storage technology.

Those funding rounds underscore Houston’s evolution as a magnet for VC in the energy sector.

“Today, the energy sector is increasingly extending into the startup economy as venture capital flows into companies developing the technologies that will shape the future of global energy,” the Greater Houston Partnership says.

The energy industry accounted for nearly 40 percent of Houston-area VC funding last year, according to market research and lead generation service Growth List.

Adding to Houston’s stature in VC for energy startups are investors like Chevron Technology Ventures, the investment arm of Houston-based oil and gas giant Chevron; Goose Capital; Mercury Fund; and Quantum Energy Partners.

How Houston innovators played a role in the historic Artemis II splashdown

safe landing

Research from Rice University played a critical role in the safe return of U.S. astronauts aboard NASA’s Artemis II mission this month.

Rice mechanical engineer Tayfun E. Tezduyar and longtime collaborator Kenji Takizawa developed a key computational parachute fluid-structure interaction (FSI) analysis system that proved vital in NASA’s Orion capsule’s descent into the Pacific Ocean. The FSI system, originally developed in 2013 alongside NASA Johnson Space Center, was critical in Orion’s three-parachute design, which slowed the capsule as it returned to Earth, according to Rice.

The model helped ensure that the parachute design was large enough to slow the capsule for a safe landing while also being stable enough to prevent the capsule from oscillating as it descended.

“You cannot separate the aerodynamics from the structural dynamics,” Tezduyar said in a news release. “They influence each other continuously and even more so for large spacecraft parachutes, so the analysis must capture that interaction in a robustly coupled way.”

The end result was a final parachute system, refined through NASA drop tests and Rice’s computational FSI analysis, that eliminated fluctuations and produced a stable descent profile.

Apart from the dynamic challenges in design, modeling Orion’s parachutes also required solving complex equations that considered airflow and fabric deformation and accounted for features like ringsail canopy construction and aerodynamic interactions among multiple parachutes in a cluster.

“Essentially, my entire group was dedicated to that work, because I considered it a national priority,” Tezduyar added in the release. “Kenji and I were personally involved in every computer simulation. Some of the best graduate students and research associates I met in my career worked on the project, creating unique, first-of-its-kind parachute computer simulations, one after the other.”

Current Intuitive Machines engineer Mario Romero also worked on Orion during his time at NASA. From 2018 to 2021, Romero was a member of the Orion Crew Capsule Recovery Team, which focused on creating likely scenarios that crewmembers could encounter in Orion.

The team trained in NASA’s 6.2-million-gallon pool, using wave machines to replicate a range of sea conditions. They also simulated worst-case scenarios by cutting the lights, blasting high-powered fans and tipping a mock capsule to mimic distress situations. In some drills, mock crew members were treated as “injured,” requiring the team to practice safe, controlled egress procedures.

“It’s hard to find the appropriate descriptors that can fully encapsulate the feeling of getting to witness all the work we, and everyone else, did being put into action,” Romero tells InnovationMap. “I loved seeing the reactions of everyone, but especially of the Houston communities—that brought me a real sense of gratitude and joy.”

Intuitive Machines was also selected to support the Artemis II mission using its Space Data Network and ground station infrastructure. The company monitored radio signals sent from the Orion spacecraft and used Doppler measurements to help determine the spacecraft's precise position and speed.

Tim Crain, Chief Technology Officer at Intuitive Machines, wrote about the experience last week.

"I specialized in orbital mechanics and deep space navigation in graduate school,” Crain shared. “But seeing the theory behind tracking spacecraft come to life as they thread through planetary gravity fields on ultra-precise trajectories still seems like magic."