Senra raises $65M Series B to pull wire harnesses out of the Cold War era. Senra, the startup modernizing how wire harnesses are built for rockets, satellites, submarines, and defense vehicles, has raised a $65 million Series B co-led by Lowercarbon and Interlagos, with participation from General Catalyst, Sequoia Capital, Andreessen Horowitz, and Founders Fund, among others. It is a blue-chip syndicate for what might sound like the least glamorous product in aerospace - and that contrast is precisely the story. The electrical cabling that forms the nervous system of every complex vehicle is still built the way it was during the Cold War, and an elite group of investors is betting the company that fixes it becomes indispensable. Why This Matters Every rocket, missile, satellite, and submarine depends on bespoke bundles of wiring assembled by hand - and as vehicles get smarter, the harness gets more complex and more mission-critical. When CEO Jordan Black toured harness suppliers worldwide, he found wooden tables and manual processes essentially unchanged in decades. In a defense and space industrial base racing to scale production, the most antiquated link in the chain is suddenly one of the most valuable problems to solve. The deal at a glance. Founded in 2023 by Jordan Black and cofounder Benjamin Shanahan, Senra traces directly to Black's time as a SpaceX engineer, where he took on the job of scaling wire harness production for Starship. The experience sent him traveling the world visiting harness companies - and what he found was an industry frozen in time. Senra's answer is not to replace the craftspeople who build harnesses but to surround them with modern software: its proprietary Amp platform standardizes inputs across the entire wiring process and produces a digital twin that guides technicians through each build. Series B Co-Led by Lowercarbon & Interlagos Harnesses Produced Across Two Factories Production Target for 2027 Founded by SpaceX Starship Harness Veteran The company already produces 1,000 harnesses a month across two factories and plans to increase output tenfold - to 10,000 a month - in 2027. While Black could not disclose customers, he described them as builders of everything from submarines and maritime vehicles to land defense systems, launch vehicles, and satellites. The breadth matters: Senra is positioning itself not as a space supplier but as the modern harness layer for the entire defense industrial base. Why wire harnesses suddenly matter. Wire harnesses are exactly what they sound like: the internal electrical cabling that runs through a rocket, car, plane, or tractor - and they become more important as those vehicles get smarter. They are bespoke products, assembled by technicians who function as experienced craftspeople. And when they go wrong, they go wrong expensively. In 2023, Boeing discovered that its Starliner spacecraft's wiring was held together with flammable tape, forcing a costly delay while the entire wiring system was redone. Black points to exactly that kind of failure as the reason to raise standards. His argument is that harness quality is a process-control problem: catastrophic outcomes trace back to small, untracked inputs - a material substitution here, an engineering change there. Having everything in the same software, he says, is the most important thing, because it is all the little inputs that can make a catastrophic change down the road. Amp exists to make every one of those inputs visible, tracked, and consistent. People first, automation last. Senra's approach is deliberately contrarian to the robots-replace-everyone narrative. Manipulating flexible wires remains genuinely hard for robots, and the training data to teach them is scarce. So Senra keeps humans in the loop - trained through what Black says is the only federally certified wire harness training program - while using software and targeted automation to modernize the work around them: materials tracking, engineering change management, digital-twin work instructions. The Elon Principle Black frames the sequencing around a lesson from his SpaceX years: automation comes last. First you standardize the process and build the foundation; only then do you automate what has been standardized. It is the same discipline, he notes, that took SpaceX from struggling to build one rocket a year to building hundreds - and Senra is applying it to the humblest component in the stack. The Investor signal. | Investor | What Their Participation Signals | | Lowercarbon (co-lead) | Industrial-transformation thesis extends beyond climate into manufacturing modernization | | Interlagos (co-lead) | Deepening focus on space and defense industrial-base infrastructure | | Sequoia, a16z, General Catalyst | Generalist conviction that boring supply-chain chokepoints produce category-defining companies | | Founders Fund | Continued bet on the SpaceX-alumni playbook applied to legacy aerospace processes | Senra is riding the surge of capital into U.S. manufacturing, particularly the defense industrial base. The demand backdrop is unambiguous: munitions production is being expanded, shipbuilding is straining, launch cadences are climbing, and satellite constellations are multiplying - and every one of those vehicles needs harnesses. A supplier that can deliver them faster, with digital traceability, into a market where the incumbent alternative is a wooden table, has structural tailwinds few component categories can match. The blacknight take. Senra - the name, Black jokes, is 'harness' spelled backwards minus the letters that spell what the company is removing from the industry - is a case study in where the space economy's real opportunities now sit. The glamour layer of the industry is crowded; the process layer is wide open. The founders who win the next decade will look like Black: operators who lived a scaling bottleneck inside a prime or a SpaceX, left, and built the modern version of the supplier they wished existed. Two things are worth watching. First, the 10x production ramp to 10,000 harnesses a month by 2027 - scaling a craft-labor process tenfold while holding aerospace quality standards is the hard part, and the software thesis will be proven or broken there. Second, the breadth of the customer base: by serving submarines, land systems, launch, and satellites simultaneously, Senra diversifies away from any single program's timeline - the classic merchant-supplier advantage. If the ramp holds, the least glamorous product in aerospace may quietly become one of its best businesses.

citybiz+ former SpaceX engineers' Senra Systems closes $65M Series B. July 16, 2026 Senra Systems, founded by two former SpaceX engineers, raised $65 million in a Series B round co-led by Wyoming's Lowercarbon Capital and Brazilian firm Interlagos to advance manufacturing wire harnesses that function as a central nervous system of machines. Senra Systems co-founders Benjamin Shanahan and Jordan Black in an Instagram photo posted by the company. (Courtesy: Senra Systems) Cypress, Calif.-based Senra Systems has announced the closing of a $65 million Series B funding round co-led by Wyoming's Lowercarbon Capital and Brazilian firm Interlagos, as the Orange County firm focuses on modernizing production of wire harnesses - a systematically organization of electrical cables, wires and connectors, dubbed the "central nervous system" of machines. Other investors included General Catalyst, Sequoia Capital, Andreessen Horowitz, Founders Fund, Dylan Field, CIV, 8VC, The Friedkin Group, Jaws Estates Capital, Sozo Ventures and Alumni Ventures. Senra's total funding has risen to over $112 million. The company plans to use the new capital to establish a third manufacturing plant to meet surging demand. "One of the biggest bottlenecks in aerospace and defense manufacturing today is the skyrocketing demand for wire harnesses," said Senra Systems co-founder and CEO Jordan Black, who started out as a technician fixing roller coasters at the Santa Monica Pier. "Wire harnesses are the nervous system behind every advanced platform, yet they're still built on PDFs, spreadsheets and tribal knowledge. It's a 100% manual assembly process," added Black, who in later years served as an engineer at Elon Musk's SpaceX. Black's co-founder Benjamin Shanahan is also a former SpaceX engineer. "Just over 2 years ago, Jordan Black and I started Senra in his apartment with nothing beyond some notes, a few customer leads, and a wild idea of how to reinvent the way that the world designs and build wire harnesses," Shanahan, who has a bachelors degree in neuroscience, said in a LinkedIn post. Senra's solution is a software-driven and integrated manufacturing process that reduces production variability and accelerates delivery. It has developed a manufacturing platform called Amp that integrates many different pieces that go into the manufacture of wire harnesses. The recent hiring of former SpaceX Chief Information Officer Ken Venner is a big plus for the startup. Venner led the development of enterprise systems and manufacturing infrastructure, helping scale SpaceX's production and launch cadence. As Venner's chief technology and product officer, he will oversee the manufacturing platform and operational infrastructure. "Our goal is not simply to manufacture products faster," Venner said. "We are building the infrastructure, systems and workforce needed to support the future of American manufacturing and the industrial base. My focus is on turning Senra's process, technology and operational systems into a cohesive platform that drives the long-term scale and efficiency needed to do just that." With two factories in Cypress and Redondo Beach, Calif., Senra expects to produce 10,000 harnesses on average every month from 2027, up from 10,000 when it had just one plant. The third factory's location has yet to be decided.