Impulse Space
Builds in-space vehicles that move payloads across and between orbits for commercial, civil, and government missions.
- Business Profile
- Founders & Team6 sources scanned
- Market Size14 sources scanned
- Competitor Research5 sources scanned
- Funding9 sources scanned
- Momentum10 sources scanned
- Customer Sentiment8 sources scanned
- AI Visibility
- Risks & Red Flagspublic record checked
Summary
Worth a closer lookImpulse Space is building fleet-class, higher-thrust in-space transport vehicles (Mira/Helios) aimed at rapid, precise cross-orbit payload mobility for commercial, civil and government customers — a clear operational wedge versus lower-thrust electric players. It sits squarely against Momentus (Vigoride/water MET focus), D‑Orbit (deployment/end‑to‑end services), Exotrail (modular electric thrusters/SpaceVan) and robotic servicers like Starfish, positioning as an operator offering ready mobility rather than a component or capture-first play. Recent signals — a reported $500M Series D on June 2, 2026 (co‑led by 137 Ventures and BANNER VC), press‑summed capital >$1B, ~30 contracts ≈ $200M (Jun 2025) and Helios first flights scheduled for 2027 — point to strong commercial momentum but elevate execution and schedule risk as the single biggest tension. For a first meeting: probe propulsion/TRL, contract economics/SLAs, manufacturing/hiring ramp and contingency plans if 2027 slips.
Bull case
- Major institutional financing: reported $500M Series D (June 2, 2026) co‑led by 137 Ventures and BANNER VC, with itemized rounds summing to $825M and press statements placing total capital raised at more than $1B and a valuation near $4B.
- Founder and core technical leadership include Tom Mueller (Founder & CEO, ex‑SpaceX propulsion lead) plus an expanded senior team and headcount 14+, giving domain credibility on propulsion and vehicle design.
- Early commercial traction: company‑reported 30 contracts ≈ $200M as of June 2025, plus multi‑launch partnerships (Infinite Orbits, Astranis) and a scheduled Helios first flight in 2027, demonstrating customer demand and committed missions.
- Clear product positioning: a fleet‑first, higher‑performance cross‑orbit transporter that differentiates from Momentus, D‑Orbit, Exotrail and Starfish by offering rapid, precision payload repositioning rather than low‑thrust or capture‑first approaches.
Watch-outs
- Execution and schedule risk: first Helios flights are slated for 2027 — meeting that milestone is mission‑critical and any slip materially affects commercial credibility and revenue timing.
- Commercial and unit economics unknown: the company has not disclosed ACV, pricing, or a bottoms‑up SAM/SOM, so the stated 30 contracts ≈ $200M cannot be translated into customer lifetime value or scalable margins without diligence.
- Competitive pressure and capital intensity: peers (Momentus, Exotrail, D‑Orbit, Quantum Space) occupy adjacent plays and some are commercially active; sustaining a high‑performance fleet requires continued heavy capital and manufacturing hires (~200 planned hires reported).
- Public fundraising claims need verification: press reports cite >$1B raised and a ~$4B valuation while itemized rounds sum to $825M — reconcile press totals, tranche availability, and post‑D runway before committing.
Company profile
Customers on site
Pricing
Not publicly disclosed. The company website does not list its pricing on any of the 6 pages we read.
Target segments
Product suite
- Mira
Agile spacecraft that hosts, deploys, and maneuvers payloads with precision across orbits; operational since 2023.
- Helios
High‑capacity kick stage to transport mass from LEO to GEO (under a day); launcher‑agnostic (compatible with Falcon 9, Starship) for rapid delivery to higher orbits and deep space.
- Rideshare
Economical rideshare service to access GEO; scheduled to commence flights in 2027.
Stats they publish
Social accounts
Compliance & certifications
Corporate identity & contact
- Trade name
- Impulse Space, Inc.
- [email protected]
Founders & Team
13- Tom MuellerFounderFounder & CEOFounding member and CTO of Propulsion at SpaceX; led development of propulsion systems for the Falcon 1, Falcon 9, Falcon Heavy, and the Dragon line of spacecraft.
- Eric RomoPresident & COO
- Kevin MillerSVP of Engineering
- Carl HakenVP of Avionics
- Drew DamonVP of Spacecraft Programs
- Jeff DeFazioVP of Assembly, Integration, and Test
- Jessica FedderlyDirector of Strategic Finance
- John ClouseDirector of Autonomous Systems
- Margaret AbernathyVP of Government Affairs
- Paul SeebacherVP of Manufacturing
- Seth KovnatDirector of Vehicle Engineering
- Ashita GuptaSr. Director of Accounting & Sr. Controller
- Ryan WiltshireVP of Business Development
Impulse Space's leadership is led by founder Tom Mueller (Founder & CEO) and the company lists 13 additional senior leaders across engineering, operations, finance, manufacturing, and business development on its About page. Background details are provided on Tom Mueller (ex-SpaceX propulsion lead); other team members are named but not biographically described on the page.
- Only people explicitly named on Impulse Space's About page are reported here; several unrelated organizations named 'Impulse' exist (e.g., Impulse Labs / Impulse social app) and public aggregator listings (Tracxn) that list Nathaniel Medina, Alec Garcia, or Sam D'Amico refer to different entities and were excluded.
- Team size is reported as the number of leaders listed on the About page (14+); the page does not state total employee headcount.
- No verbatim LinkedIn profile URLs or extended bios were present for the listed leaders on the cited company page, so backgrounds are included only where the About page explicitly states them (Tom Mueller).
Market Size
MarketIntelo (global) reports the autonomous satellite servicing & in-space mobility market at USD 3.6B in 2025, rising to USD 20.1B by 2034 (CAGR 19.5%) — this map aligns directly with Impulse's product set (on-orbit transport/servicing). No reliable bottoms-up SAM can be produced because Impulse has not published ACV/pricing or an addressable-customer count; the company's website-reported traction (30 contracts ≈ $200M as of Jun 2025) confirms commercial demand but is insufficient to derive a defensible SAM or SOM.
- MarketIntelo ↗The global autonomous satellite servicing & in-space mobility market was valued at $3.6 billion in 2025 and is projected to surge to $20.1 billion by 2034, advancing at a robust compound annual growth rate (CAGR) of 19.5% over the forecast period 2026-2034. · Global · 19.5% CAGR
- MarketsandMarkets (via PR Newswire) ↗The space propulsion market is expected to grow from USD 8.00 billion in 2026 to USD 14.41 billion in 2031, at a CAGR of 12.5%. · Global · 12.5% CAGR
- DataIntelo ↗The space robotics autonomy software market was valued at $3.8 billion in 2025 and is projected to grow to $11.6 billion by 2034, with a CAGR of 13.2% from 2026 to 2034. · Global · 13.2% CAGR
- TAM definition chosenUsing the 'autonomous satellite servicing & in-space mobility' market (MarketIntelo) because it directly matches Impulse's core offering of in-space transport/servicing vehicles and related mobility services.https://marketintelo.com/report/autonomous-satellite-servicing-in-space-mobility-market
- No disclosed ACV / published pricingImpulse has not published a standard annual contract value or unit pricing that can be used for a bottoms-up SAM; therefore a bottoms-up SAM cannot be reliably calculated.Impulse Space updates (company site) and lack of public pricing information
- Company traction (used to judge ability to capture market, not to size SAM)As of June 2025 Impulse had over 30 signed contracts totalling nearly $200M (company disclosure); this demonstrates commercial traction but does not provide ACV or addressable-customer counts needed for a bottoms-up SAM.https://www.impulsespace.com/updates/impulse-space-secures-300-million-dollar-series-c-to-accelerate-the-future-of-in-space-mobility
- TAM uses MarketIntelo's definition of 'autonomous satellite servicing & in-space mobility' (global) because it best matches Impulse's offering; other published figures (propulsion, robotics software, in-space manufacturing/transportation) report adjacent but not identical markets and therefore are supplementary only.
- No standard Impulse ACV or published pricing was found; bottoms-up SAM requires either the company's ACV or a grounded count of target customers × price — absent this, SAM and SOM are set to null to avoid fabrication.
- Company traction figures are drawn from Impulse's own updates (30 contracts ≈ $200M as of Jun 2025); those are useful to judge realism of capture but are self-reported and do not provide contract duration or annualized revenue.
- Market reports differ in scope and methodology; long-range forecasts (to 2034) compound uncertainty and may overlap (e.g., propulsion market and in-space mobility market count related revenues differently).
Competitors
Top 5Competitive set includes OTV/operators (Momentus, D-Orbit, Impulse), electric-prop suppliers (Exotrail, Bellatrix), and robotic servicers (Starfish). Impulse sits as a fleet-first, higher-performance in-space transport operator focused on rapid, precise cross-orbit mobility.
- Momentusmomentus.space ↗Operates Vigoride OSVs using water MET thrusters; Impulse competes as a higher-performance, rapid-precision orbital transporter with Mira/Helios versus Momentus' water-propulsion infrastructure focus.
- D-Orbitdorbit.space ↗Provides ION satellite-deployment and end-to-end mission services; Impulse focuses on dedicated in-space transport vehicles for precise cross-orbit maneuvers.
- Exotrailexotrail.com ↗Builds electric propulsion and SpaceVan OTVs for smallsat mobility; Exotrail wins on modular electric thrusters and small-sat scale, while Impulse targets higher-thrust, multi-orbit payload transport.
- Quantum Spacequantumspace.us ↗Develops spacecraft and platforms for multi-orbit operations and logistics; Impulse positions as an operator of dedicated transport vehicles, offering ready mobility versus Quantum's infrastructure-building approach.
- Starfish Spacestarfishspace.com ↗Develops autonomous rendezvous, docking and servicing (Remora); Starfish specializes in robotic servicing and capture, while Impulse focuses on cross-orbit transport vehicles and payload repositioning.
Funding
- Seed$5M2021-01-01Construct Capital leadLachy Groom leadLux Capital leadCrunchbase ↗
- Series A$20M2022-11-15Construct Capital leadFifth Wall leadLachy Groom leadCrunchbase ↗
- Series C$300M2025Via Satellite ↗
- Series D$500MJune 2, 2026137 Ventures leadBANNER VC leadFounders FundLux CapitalLinse CapitalSpaceNews ↗
Impulse Space has publicly reported a $500M Series D (June 2, 2026) co-led by 137 Ventures and BANNER VC; earlier, Crunchbase lists a $5M Seed (2021) and $20M Series A (Nov 15, 2022), and multiple press articles reference a $300M Series C in 2025. Press statements place total capital raised at more than $1 billion and cite a valuation around $4B.
- Itemized rounds sum to $825M (Seed $5M + Series A $20M + Series C $300M + Series D $500M) but company/press reports state Impulse has raised "more than $1 billion"; that suggests there may be additional undisclosed or un-itemized financings.
- Crunchbase structured data supplied the Seed ($5M) and Series A ($20M) entries; independent trackers (PitchBook/Tracxn) in the provided corpus reported much smaller totals (e.g., $25M total), a clear conflict with press reporting and Crunchbase.
- The $300M Series C is reported by multiple press stories as context for the Series D but no standalone press release for the Series C was provided in the corpus; lead/participating investors for the Series C are not named in the supplied texts.
- Valuation figures differ across outlets (Bloomberg reported $4.0B; Reuters reported $4.26B). Latest_valuation_display uses Bloomberg's reported $4B and notes the Reuters figure as a discrepancy.
- Some web-search / tracker snippets cited a Seed announced Jan 4, 2023 led by Lux Capital and Founders Fund; that conflicts with Crunchbase's Seed 2021 listing and was not corroborated by the Crunchbase structured block included here.
Momentum
- FundingJune 02, 2026Impulse Space raised $500 million in a Series D round co-led by 137 Ventures and BANNER VCGlobeNewswire ↗
- HireJune 02, 2026Said it will use the Series D capital to hire as many as 200 new employeesTechCrunch ↗
- PartnershipJune 02, 2026Infinite Orbits signed a multi-launch agreement with Impulse Space to deliver multiple spacecraft to GEO starting in 2027 via Impulse’s Caravan rideshareGlobeNewswire ↗
- PartnershipJune 02, 2026Astranis and Impulse Space signed an agreement targeting a 2027 mission to directly inject to GEO using Impulse’s Helios kick stageGlobeNewswire ↗
- MilestoneJune 02, 2026Reported it has flown three missions and secured hundreds of millions of dollars in customer contractsGlobeNewswire ↗
- Launch2027Helios kick stage is scheduled for its first flight in 2027GlobeNewswire ↗
- Milestonelate 2025Mira spacecraft completed a third flight (reported as 'late last year')TechCrunch ↗
- Funding2025Impulse Space raised a $300 million Series CSatellite Today ↗
- Funding2022-11-15Series A: $20M (investors included Construct Capital, Fifth Wall, Lachy Groom)Crunchbase ↗
- Funding2021-01-01Seed: $5M (investors included Construct Capital, Lachy Groom, Lux Capital)Crunchbase ↗
Impulse Space showed concentrated momentum in mid‑2026: a $500M Series D (June 2, 2026), hiring plans for ~200 employees, multi‑launch partnerships (Infinite Orbits, Astranis) and scheduled first flights (Helios in 2027), plus prior funding and mission milestones.
- The June 2, 2026 Series D and many program details come from the company press release and contemporaneous media coverage clustered on that date.
- Several funding entries (Seed, Series A, Series C) are drawn from disclosed funding records and secondary reporting rather than new primary filings in the supplied text.
- Some timeline language is relative (e.g., 'late last year' for Mira’s third flight); dates were normalized conservatively where possible.
Customer Sentiment
No credible third‑party customer reviews were found that clearly concern Impulse (impulsespace.com), the in‑space mobility company. Multiple online review streams exist for other businesses named "Impulse" (a brain‑training mobile app, a trading/prop‑fund site, and unrelated employer listings), so none of those reviews are reliable evidence about the space company’s customers.
No reviews explicitly reference impulsespace.com, its in‑space transport vehicles, or customers of an in‑space mobility operator.
Multiple distinct businesses use the name "Impulse," producing name‑collision noise: e.g. the "Impulse - Brain Training" mobile app (App Store listing shows 4.7/5 with 834K ratings and references to 100+ million downloads), impulseworld.pro on Trustpilot (TrustScore 4.3 with 484 reviews and mixed allegations including billing/subscription and 'scam' claims), and an unrelated employer profile on Indeed (3.5/5 from 79 reviews). These streams appear to refer to different companies and should not be attributed to impulsespace.com.
Because relevant, company‑specific customer feedback is absent or ambiguous, ratings and review themes are omitted rather than inferred.
Public authenticity and relevance of the found reviews cannot be assessed here (possible fake/paid reviews or reviewer confusion); this is a common limitation when a brand name is shared across unrelated businesses.
AI Visibility
We ask ChatGPT WITH web search about the company and show its answers plus the sources it cited — the real AI-search experience. The key signal is share of voice: does the company come up when AI is asked about its space, not just when asked by name.
Models asked ChatGPT · web search
Accuracy of what AI said: Partly accurate — The assistant correctly describes the firm's purpose (in-space transportation) and product names (Mira/Helios/vertical integration), but specific claims about founder identity, funding rounds/amounts, mission successes, and board additions should be independently verified and may be overstated or unverified.
Impulse Space is a California-based aerospace company specializing in in-space transportation services. Founded in 2021 by Tom Mueller, a former SpaceX propulsion expert, the company focuses on developing spacecraft capable of moving payloads between various orbits efficiently and affordably. (impulsespace.com)
Founder: Tom Mueller, the founder and CEO of Impulse Space, is renowned for his work at SpaceX, where he was instrumental in developing the Merlin and Draco rocket engines that power the Falcon 9 and Dragon spacecraft. (impulsespace.com)
Company Size and Stage: As of June 2026, Impulse Space has secured over $1 billion in funding, including a recent $500 million Series D round. The company is in a rapid growth phase, with over 200 open positions, indicating significant scaling efforts. (space.com)
Notable Facts:
- Mira Spacecraft: Impulse's flagship spacecraft, Mira, powered by proprietary Saiph thrusters, has successfully completed three missions since 2023. (space.com)
- Helios Development: The company is developing Helios, a high-capacity "kick stage" compatible with various launch vehicles, including Falcon 9 and Starship, to deliver heavier payloads to higher orbits and deep space destinations. (space.com)
- Vertical Integration: Impulse Space emphasizes in-house design, manufacturing, and testing to ensure reliability and cost-effectiveness. (impulsespace.com)
- Leadership Addition: In 2024, General John W. Raymond, former Chief of Space Operations for the U.S. Space Force, joined the company's board of directors, highlighting its strategic importance in the space industry. (en.wikipedia.org)
Impulse Space aims to revolutionize the space economy by providing precise and cost-effective in-space mobility solutions, positioning itself as a key player in the emerging orbital logistics sector.
## Highlights:
- Unlocking 'the true space age': Impulse Space raises $500 million to build out fleet of ultra-mobile spacecraft, Published on Tuesday, June 02
- Ex-SpaceX engineer raises $300 million for satellite "tugging", Published on Wednesday, June 04
Here is a concise list of notable companies and products in the in-space transportation sector:
- Impulse Space: Develops ultra-mobile spacecraft like Mira and Helios for precise and cost-effective in-space mobility. (space.com)
- D-Orbit: Provides in-space transportation solutions, including satellite deployment and decommissioning services. (space-startups.org)
- Starfish Space: Develops autonomous spacecraft for satellite servicing missions, such as life extension and debris removal. (space-startups.org)
- Momentus Inc.: Offers in-space infrastructure services with its Vigoride Orbital Service Vehicle, utilizing proprietary thrusters. (en.wikipedia.org)
- Exotrail: Designs electric propulsion systems and operates orbital transfer vehicles for small and medium satellites. (spaceindex.io)
- Astroscale: Focuses on on-orbit servicing and debris removal, with partnerships to enhance space sustainability. (wiseguyreports.com)
- Axiom Space: Develops commercial space stations and offers in-space research and manufacturing services. (en.wikipedia.org)
- Varda Space Industries: Pioneers in-space manufacturing, completing the first commercial pharmaceutical production mission in 2024. (orbital-intel.com)
- Redwire Corporation: Engages in in-space manufacturing, including the production of ZBLAN optical fiber on the ISS. (orbital-intel.com)
- Rocket Lab USA Inc.: Provides launch services and is involved in in-space transportation and manufacturing initiatives. (wiseguyreports.com)
These companies are at the forefront of advancing in-space transportation and related services.
In the rapidly evolving field of in-space transportation, several companies are making significant strides. Here are some notable organizations and their contributions:
Impulse Space: Founded in 2021 by former SpaceX propulsion expert Tom Mueller, Impulse Space focuses on developing ultra-mobile spacecraft for precise and cost-effective payload movement within Earth orbit and beyond. Their flagship spacecraft, Mira, powered by proprietary Saiph thrusters, has successfully completed multiple missions since 2023. In June 2026, the company secured $500 million in Series D funding to expand its fleet and advance in-space mobility technology. (space.com)
Lux Aeterna: This Colorado-based startup is pioneering fully reusable satellites, aiming to revolutionize the space economy similarly to how reusable rockets have transformed launch services. In April 2026, Lux Aeterna raised $10 million in seed funding to accelerate the development of its prototype satellite platform, Delphi, scheduled for a SpaceX Transporter mission in early 2027. (space.com)
D-Orbit: An Italian company specializing in in-space logistics, D-Orbit has completed 20 ION missions since 2021 and established a strategic partnership with Eutelsat for geostationary orbit servicing. Their experience positions them as a leader in orbital transfer and servicing solutions. (libertify.com)
Astroscale: Headquartered in Japan, Astroscale focuses on space debris removal and on-orbit servicing. With over $443 million in funding and a successful IPO in 2024, the company demonstrated its ADRAS-J debris approach mission and has a U.S. Space Force refueling mission planned for 2026. (libertify.com)
Momentus Inc.: Based in the United States, Momentus is developing water plasma propulsion systems for cost-effective orbital transfer services. Their innovative approach aims to provide flexible and affordable in-space transportation solutions. (growthmarketreports.com)
Atmos Space Cargo: A German aerospace company known for its Phoenix re-entry capsule, Atmos Space Cargo focuses on reusable space logistics and cargo-return technologies for low Earth orbit missions. In April 2025, they conducted the first orbital test flight of the Phoenix 1 capsule aboard a SpaceX Bandwagon-3 mission. (en.wikipedia.org)
These companies represent a diverse range of approaches to in-space transportation, from reusable satellites and debris removal to advanced propulsion systems and re-entry technologies.
The AI reliably describes Impulse Space's core business when asked by name but did not surface the company unprompted in category/recommendation queries, limiting its discoverability. Several detailed factual claims in the direct answer (founder, funding, mission count, board hires) should be treated as unverified and checked against primary sources.
- AI/web-search outputs can vary by run and by which sources are indexed or prioritized.
- Some claims appear drawn from press coverage or secondary sources; funding, founder, and board-member assertions should be confirmed from primary filings, press releases, or the company site.
- The category/recommendation answers may omit the company depending on prompt phrasing and the model's source sampling; absence in those lists does not necessarily mean the company isn't notable in market analyses.
Risks & Red Flags
No material public risk signals found. An absence of public concerns isn’t a clean bill of health — early or private companies may simply not generate coverage.
No material public risk signals were found for Impulse; there are no records located of lawsuits, enforcement actions, major negative press, security breaches, layoffs, or funding distress specifically tied to this company.
Absence of public concerns is not a clean bill of health: early-stage or privately held space companies often have limited public footprints. Recommend standard diligence (reference checks, access to internal legal/compliance disclosures, and primary-source validation) before investment.
Frequently asked questions
What does Impulse Space do?
Builds in-space vehicles that move payloads across and between orbits for commercial, civil, and government missions.
How much funding has Impulse Space raised?
Impulse Space has raised more than $1 billion (per company/press reports); itemized rounds sum to $825M in disclosed funding. Its most recent disclosed round was a $500M Series D in 2026, led by 137 Ventures and BANNER VC.
Who are Impulse Space's main competitors?
Impulse Space's named competitors include Momentus, D-Orbit, Exotrail and Quantum Space.
Who founded Impulse Space?
Impulse Space was founded by Tom Mueller.
Where is Impulse Space headquartered?
Impulse Space is headquartered in Redondo Beach, California, United States.
What market does Impulse Space operate in?
Impulse Space operates in the In space transport market (B2B). Its total addressable market is estimated at USD 3.6 billion (2025).
How does Impulse Space's pricing work?
Impulse Space uses a enterprise custom pricing model.
Compiled by AlgoTurk from public web sources · . Not investment advice.