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Portal Space Systems

Develops rapid, solar-thermal propelled satellite buses

Overview

Portal Space Systems designs and builds spacecraft for in-space mobility, focusing on a solar thermal propulsion-driven satellite bus called the Supernova. The bus uses solar energy to heat a propellant, delivering higher thrust and efficiency to perform large orbital changes, such as transferring from LEO to GEO or to cislunar space. The team includes veterans from SpaceX, Blue Origin, and Kuiper, helping mature the technology and manufacturing process. The company has secured over $3 million in Department of Defense funding, signaling a government and defense market focus, and plans to begin production of the Supernova by the end of 2026 from its Bothell, Washington base. Its goal is to move satellites more quickly and flexibly through space, enabling expanded space logistics and orbital transfer capabilities while winning government contracts.

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About Portal Space Systems

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Industries

Industrial & ManufacturingGovernment & Public SectorAerospaceDefense

Company Size

51-200

Company Stage

Series A

Total Funding

$70.9M

Headquarters

Bothell, WA

Founded

2021

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Funding

Total Funding

$70.8M

Above

Industry Average

Funded Over

4 Rounds

Series A funding typically happens when a startup has a product and some customers, and now needs funding to scale. This money is usually used to grow the team, expand marketing, and improve the product. Venture capital firms are frequently the main investors here.
Series A Funding Comparison
Above Average

Industry standards

$15M
$8.2M
$15M
$30M
$50M

Benefits

  • Health Insurance
  • Vision Insurance
  • Dental Insurance
  • 401(k) Retirement Plan
  • Paid Vacation
  • Paid Holidays
  • Paid Sick Leave
  • Parental Leave
  • Company Equity

Company News

PR Newswire
Oct 21st, 2026
Atomic-6 launches first Space Armor tiles into orbit to counter space debris threat

Atomic-6 has launched its Space Armor technology into orbit for the first time. The tiles flew aboard Portal Space Systems' Starburst-1 spacecraft on a SpaceX Falcon 9 rocket, as part of the Bandwagon-5 rideshare mission. The composite tiles shield spacecraft from micrometeoroids and orbital debris. In ground tests, they stopped projectiles travelling faster than 7km per second without producing harmful secondary debris, while aluminium shielding produced many fragments, some larger than the projectile. Starburst-1 will test the tiles during a planned one-year mission. Portal and Atomic-6 will use the results to validate installation procedures and shape future spacecraft designs. "We're putting that technology to work aboard Portal's Starburst-1," said Trevor Smith, chief executive officer of Atomic-6. Portal has raised $75 million in funding since 2024.

Premier Media Group
Sep 29th, 2026
Governor signs executive order creating state Space Council; new space impact data released.

Governor signs executive order creating state Space Council; new space impact data released. * john stearns * 21 hrs ago. Washington Gov. Bob Ferguson signed an executive order creating the Washington Space Council Monday evening at Space Northwest's Seattle Space Week kickoff event, establishing a new statewide body focused on strengthening Washington's position in the rapidly growing commercial space economy, according to a news release today. The size of that economy in Washington is significant. The space sector directly supports about 12,340 jobs, $8.1 billion in economic output, and $2.3 billion in labor income in Washington, according to new preliminary research commissioned by Space Northwest, a nonprofit industry association. When indirect and induced impacts are included, Washington's space sector supports approximately 34,200 jobs, $12.4 billion in statewide economic output, and $3.9 billion in labor income, with every direct space-sector job supporting an additional 1.8 jobs in Washington, Space Northwest said in its news release today announcing the Space Council and research findings. Other preliminary findings highlighted that 94% of Washington's direct space jobs are concentrated in advanced manufacturing, engineering, R&D, computing, electronics and hardware, underscoring the technology-intensive nature of the industry, Space Northwest said. The industry group also presented an analysis that found more than 68% of all active satellites currently in Earth orbit were manufactured in Washington - more than twice as many as the rest of the world combined. At least eight Washington companies currently manufacture or operate active satellites, with more than 10 others developing or building future spacecraft, the release added. Among current local manufacturers, SpaceX makes its Starlink satellites in Redmond and Amazon Leo makes its broadband satellites in Kirkland. Additionally, Space Northwest said 24 space startups headquartered or operating in Washington have collectively raised more than $4.3 billion, including more than $3.7 billion since 2021, across areas that include satellites, launch, communications, Earth observation, orbital data centers, ground systems, in-space servicing, power, and software. The 23-member public-private Space Council, meanwhile, includes leaders from commercial space companies, aerospace and advanced manufacturing, labor, higher education, local government, and Legislature. The Washington State Department of Commerce will provide staffing and logistical support, and the council will assess Washington's capabilities and identify investments, policies and partnerships that can support continued industry growth and economic opportunity, Space Northwest said. The council will also look for ways the state might be able to develop Washington-based commercial launch capabilities, according to a separate news release from the governor's office. "Washington is not merely a participant in the space economy, we helped build it," Ferguson said in the Space Northwest release. "Our state has an extraordinary concentration of talent, innovation, and advanced manufacturing. Seattle Space Week puts that strength on display while creating opportunities to grow good jobs, attract investment, and keep Washington at the forefront of the expanding space economy." Kelly Maloney, co-founder and chair of the Space Northwest board of directors and CEO of Pacific Aerospace Launch & Spaceport, added in a statement, "Creating a Washington Space Council recognizes that space is no longer a niche sector of our economy. It is an economic engine with enormous potential for Washington." Maloney added, "We already have one of the most concentrated space technology ecosystems in the world. The opportunity now is to make sure Washington has the infrastructure, workforce, policy environment and investment strategy necessary to keep that industry growing here." The council will provide findings and recommendations to Ferguson through advisory reports, with a focus on strengthening Washington's global competitiveness, advanced manufacturing base, ability to attract investment, and capacity to create high-quality jobs, Space Northwest said. Council members include Mayor Angela Birney, city of Redmond; Betsy Cantwell, president, Washington State University; Jason Chan, IAM 751; Trever Devaney, Hi-Rel Laboratories; Colin Doughan, Gravitics; Michael Edmonds, Blue Origin; and several others. Space awards. Monday evening's Space Week kickoff event also included Space Northwest's annual awards recognizing organizations helping advance Washington's space economy. The city of Kent received Space Northwest's Municipal Award for its work supporting and advancing the space industry and economic development. Bothell-based Portal Space Systems was named Emerging Space Company of the Year, recognizing its growth and development of next-generation spacecraft and orbital mobility capabilities. SpaceX was named Large Space Company of the Year, recognizing its significant space manufacturing presence in Washington and the scale of satellite production associated with its Starlink operations in Redmond. The awards were presented as part of the Seattle Space Week kickoff, which brought together leaders from industry, government, academia, investment, and the broader space community at The Museum of Flight in Seattle. Seattle Space Week 2026 runs through Oct. 4 under the theme "Scaling the Space Economy." Organized by Space Northwest, the week brings together industry leaders, founders, investors, researchers, policymakers, and community partners from across the region, with programming spanning investment, entrepreneurship, manufacturing, space technology, national security, professional networking, and community events.

GeekWire
Sep 29th, 2026
Washington governor sets up space council to boost business ventures targeting the final frontier.

Washington governor sets up space council to boost business ventures targeting the final frontier. by Alan Boyle on Sep 28, 2026 at 11:15 pm Washington Gov. Bob Ferguson has created a public-private council to elevate the Evergreen State's profile as regional clusters compete for primacy in America's space industry. The 23-member Washington Space Council was introduced tonight at the Museum of Flight during a kickoff event for Seattle Space Week, a celebration organized by Space Northwest. "The council will help keep us competitive by comparing Washington with other leading states in the industry and identifying ways we can continue to improve and compete," Ferguson said. Washington state already ranks as one of the nation's space industry hotspots. "We're proud to have a cluster of more than 90 space companies employing more than 13,000 workers, generating over $4 billion in annual economic activity and $1.6 billion in annual payroll," Ferguson said. But Andy Lapsa, co-founder and CEO of Kent, Wash.-based Stoke Space, told tonight's crowd that several other regions are competing with the Pacific Northwest for space-related investments. "States like Florida and Texas and Colorado want this industry, and they want it bad," he said. "They compete for it every day. Washington has every advantage it needs to lead them all, and the window to use those advantages is open right now." Boeing has historically been the state's leading venture in aerospace, but when you focus on ventures that concentrate strictly on space, Blue Origin is high on the list. Seattle is particularly strong in the satellite sector: More than half of the world's satellites are built in the Seattle area, thanks to SpaceX's Starlink facilities in Redmond and Woodinville, plus Amazon Leo's factory in Kirkland, BlackSky's production plant in Tukwila and Xplore's operation in Bellevue. Gravitics, Interlune, Portal Space Systems, Starcloud and Starfish Space are among other space ventures represented on the Washington Space Council. The list also includes elected officials, union leaders, educators and investors, plus representatives from space-related tech companies and Pacific Northwest National Laboratory. Ferguson said the council will "identify barriers for the industry and find opportunities for growth." "That includes, by the way, workforce development, infrastructure and much more," he said. "And the council will look for ways we might be able to develop Washington-based commercial launch capabilities. That would be a very exciting addition to what we're doing right here in Washington." Ferguson brought a member of the audience, 10-year-old Sebastian Yu, to the stage when he signed the executive order that officially created the council. After the signing, the governor handed the pen to Yu. "Your assignment, Sebastian, is that when we do that first launch, you have to save this pen and bring it with you to the first launch," Ferguson said. "Take care of this pen, OK? I'm going to expect to see it again someday." Notes from the kickoff: * Space Northwest presented three awards to recognize contributions to the region's space industry. The Shooting Star award for municipal support went to the city of Kent, Wash. Portal Space Systems won the Rising Star award for emerging space companies, and SpaceX won the North Star Award for large space companies. * Kent Mayor Dana Ralph noted that her city's connection to the space industry goes back to Boeing's work on the lunar rovers for NASA's Apollo moon missions in the 1970s, while acknowledging that Kent can't rest on its laurels. "Our job is to make it possible for companies to build and grow and hire. That means reinvesting in the basics: roads, great mobility, water, sewer, plentiful and easily accessible energy and industrial land," she said. * Mehran Mesbahi, professor and chair of the University of Washington's Department of Aeronautics and Astronautics, highlighted efforts to boost careers in the space industry. "We have Husky Satellite Lab, a group of energized students at UW, and we're going to create a certificate program around space systems going forward," he said. Seattle Space Week continues on Tuesday with the Space Northwest Symposium at the Federal Way Performing Arts & Event Center.

TFX Capital
Aug 25th, 2026
Startups look to add electronic-threat detection to maneuverable spacecraft.

Startups look to add electronic-threat detection to maneuverable spacecraft. August 25, 2026 Two of TFX's Portfolio Companies, Portal Space Systems and Rebel Space, are teaming up to put spectrum monitoring technology aboard Portal's vehicles, extending a capability now used on the ground into orbit. The companies are exploring several approaches that would allow Portal spacecraft to detect and characterize interference and other electronic threats in their immediate surroundings, executives from the two startups told SpaceNews. One option is a dedicated Rebel payload. Another would integrate the technology as a standard onboard function, giving Portal spacecraft continuing awareness of the radio-frequency environment while carrying out other missions. The effort comes as government agencies and commercial satellite operators pay closer attention to the increasingly congested electromagnetic environment in space, where communications links can be disrupted by unintentional interference or deliberate jamming. Rebel provides spectrum intelligence from the ground by connecting its hardware and software to antennas operated by independent satellite teleport companies. Its systems analyze the RF signals received by those antennas to identify and characterize interference and jamming, and can help attribute or potentially geolocate their source. Carrie Marshall, Rebel's chief executive, said the company now wants to move that sensing and analysis closer to the spacecraft itself. That could give satellite operators a more immediate picture of what is affecting a communications link rather than relying solely on observations from ground stations. For military spacecraft operating in a contested environment, onboard monitoring could also help identify attempted jamming, suspicious commands or other unusual electromagnetic activity. Marshall said one approach under discussion is a "spectrum warfare" payload hosted by Portal. Such a system could provide not only analytics but the ability to "respond in kind or actively defend or mitigate" activity affecting the spacecraft. The companies are also considering embedding Rebel's technology more broadly across Portal's spacecraft rather than treating it as a standalone payload. Portal's chief executive Jeff Thornburg said the company is interested in an "ingrained capability to understand the EW environment around the spacecraft." That approach could be useful for Portal's spacecraft, which are being designed to maneuver more extensively than traditional satellites. A vehicle moving toward another spacecraft or into a different orbital region may need to understand the local RF environment without waiting for ground-based sensors to provide that picture, Thornburg said. The capability could also support space domain awareness, the military term for detecting and understanding objects and activity in orbit, by adding information about electromagnetic activity to optical and other forms of tracking. The companies are looking to begin integration work on the ground. "The next step for Carrie and me is really to marry her hardware and software with our system and test it in our hardware-in-the-loop system on the ground before the first launch, which would probably be no earlier than 2027," Thornburg said. Portal launched its first hardware in March aboard SpaceX's Transporter-16 mission, flying a small technology-demonstration payload that tested the flight computer, avionics and software intended for its spacecraft family. Its next milestone is the first flight of Starburst, Portal's roughly 300-kilogram maneuverable spacecraft, scheduled to launch in October aboard SpaceX's Bandwagon-5 rideshare mission to a mid-inclination orbit. The inaugural flight is intended primarily to validate the Starburst design. It will also carry rendezvous-and-proximity-operations cameras supplied by TRL11 and a superconducting magnet technology payload from Zenno Astronautics. Starburst will also be the first orbital deployment of Atomic-6's Space Armor, a lightweight composite tile system designed to protect spacecraft from micrometeoroids and orbital debris.

Defense Daily
Aug 20th, 2026
Portal Space plans first launch of transorbital Supernova spacecraft in 2028.

Portal Space plans first launch of transorbital Supernova spacecraft in 2028. Thursday, August 20th, 2026 Portal Space Systems on Thursday said it has contacted with SpaceX [SPCX] to launch the company's Supernova spacecraft in mid-2028, which will feature Portal's FLARE solar thermal power propulsion system. Portal acquired the entire Falcon 9 launch mission, an unusual move by a spacecraft manufacturer, giving it full control of its Montus Via Sol mission. The first launch of its Starburst satellite is slated for October on a SpaceX rocket. Both spacecraft types are built to be highly maneuverable and... Not a subscriber or registered user yet? Please contact us at [email protected] or call us at 888-707-5814 (Monday - Thursday 9:00 a.m. - 5:30 p.m. and Friday 9:00 a.m. - 3:00 p.m. ET.), to start a free trial, get pricing information, order a reprint, or post an article link on your website.

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