A
Atomos Space
Atomos Space is developing high-powered electric propulsion spacecraft to provide in-space transportation services to satellite operators
About Atomos Space
Atomos Space, founded in 2017 by Vanessa Clark and William Kowalski, is a company focused on in-space logistics, specifically developing and operating orbital transfer vehicles (OTVs) to provide "last-mile" transportation for satellites. The firm addresses the challenge satellite operators face when relying on rideshare launches, which typically deliver payloads to a standard, non-prejudicial orbit that may not be the final desired destination. Atomos's service model involves its OTVs rendezvousing with and capturing client satellites in a provisional orbit and then transporting them to their precise operational orbit, a service that can potentially halve launch costs for customers deploying constellations.
Read full description
The company's founding was driven by CEO Vanessa Clark's direct experience as an aerospace engineer, where she observed the interdependent limitations between launch vehicle and satellite design. Clark's extensive background includes work on spacecraft propulsion and space nuclear power systems at institutions like the German Aerospace Centre (DLR), Airbus, and Lockheed Martin. Co-founder and COO William Kowalski brings a complementary skill set with a background in finance and a passion for physics and space policy. Their combined expertise addresses both the technical and the complex regulatory and financial hurdles of the space industry.
Atomos's core technology is embodied in its reusable, space-resident OTVs, which contrasts with single-use kick-stages. This reusability is central to its business model, aiming to amortize costs over many missions. The company is developing a line of vehicles, including the "Quark," a versatile OTV combining autonomous rendezvous and capture technology with high-thrust electric propulsion. For its initial demonstration mission, named "The Singing Astronomer," Atomos launched its Quark OTV and a target vehicle called "Gluon" in early 2024 to test rendezvous, docking, refueling, and orbital transfer capabilities. Atomos is also pursuing advanced propulsion technologies, including nuclear systems, to enable more ambitious missions in the future, such as transport to geosynchronous orbit (GEO) and deep space.
Financially, Atomos Space has secured significant backing, raising a total of $23.4 million over four funding rounds. A notable Series A round in January 2023, co-led by Cantos Ventures and Yamauchi-No. 10 Family Office, raised $16.2 million. The company has also won over $2 million in contracts from government bodies like NASA, the US Air Force, and the US Space Force. Operating from a 20,000-square-foot facility in Broomfield, Colorado, Atomos has vertically integrated its manufacturing and testing, including a unique Rendezvous and Proximity Operations (RPO) testbed called "The Void". In April 2025, it was announced that Atomos was acquired by Katalyst Space Technologies, a move intended to combine Atomos's OTV and rendezvous capabilities with Katalyst's focus on in-space servicing and satellite upgrades.
At a glance
- Status
- Acquired
- Founded
- 2018
- Headquarters
- Denver, United States
- Employees
- 3
- Open positions
- None listed
- Dealroom signal
- 65.0/100
- Sector
- Space, Aerospace, Space Travel, Nuclear, Spinout, Logistics, Space Tech, Space Transportation, In-Space Transportation, Space Vehicles Components and Payloads, Propulsion Systems, Space Upstream
- Technology
- Deep Tech
- Business model
- Manufacturing
- Client focus
- b2b
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| ACQUISITION✓Exit | Apr 2025 | $0 | — | Katalyst Space Technologies | ↗ |
| LATE VC✓Equity / VC | Jan 2023 | $16M | $65M | Undisclosed | ↗ |
Growth signals
Latest recorded traffic for Atomos Space is 200 monthly website visits, down 69.7% over the last three months. Atomos Space's team grew 50% over the past year.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
| Company | Headquarters | Status | Employees | Total funding | Valuation |
|---|---|---|---|---|---|
Alén SpaceConsultancy, design, manufacture and operation of small satellites |
Nigrán, Spain | Acquired | 118 | $3.9M | $4.4M |
ExotrailSmall satellite propulsion for an agile space |
Massy, France | Operational | |||
AstrocastCost-effective, bidirectional satellite IoT connectivity network. |
Chavannes-près-Renens, Switzerland | Operational | |||
NanoAvionicsNanoAvionics is a satellite mission integrator, manufacturing high-performance multi-purpose nanosatellites of CubeSat class |
Vilnius, Lithuania | Acquired | |||
Ramon SpaceRAMON.SPACE | Bringing super computing to space |
Milpitas, United States | Operational | |||
Bellatrix AerospaceAn Indian space R&D company that specializes in satellite propulsion |
Coimbatore, India | Operational | |||
Ienai SPACECustomizable electric propulsion systems for small satellites |
Leganés, Spain | Operational | |||
HyImpulse TechnologiesHybrid propulsion launch vehicles for small satellites |
Neuenstadt am Kocher, Germany | Operational |
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Series A8 investors entered at this stage
- UIUpheaval Investments
Techstars
XFactor Ventures- GVGAN Ventures
Cantos Ventures
Pure Ventures
Morgan Brook Capital
Urania Ventures
Other known investors10 additional known investors
Katalyst Space Technologies
University of Toronto
Catalyst Accelerator
Creative Destruction Lab
FI Core Accelerator
Founder Institute
Founder Institute Texas
Revolution
Riyadh Techstars Accelerator
Small Business Innovation Research
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Atomos Space on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See Atomos Space’s full profile on Dealroom
Request a free trial to see the complete deal history, financials, people graph and growth signals.
Takes under a minute. Already use Dealroom? Log in.







