What Momentus does

Momentus Inc. is a U.S. commercial space company headquartered in San Jose, California, that provides in-space transportation, hosted payload services, and in-orbit servicing for satellite operators, U.S. government agencies, and academic institutions. The company operates the Vigoride Orbital Service Vehicle (OSV), a reusable platform that delivers small satellites and customer payloads to custom orbits in low Earth orbit, provides attitude control, up to 3 kW of onboard peak power, and communications interfaces. The vehicle is launched on SpaceX Falcon 9 Transporter rideshare missions, giving Momentus a predictable launch cadence on a constrained launch resource. Successive Vigoride vehicles (Vigoride-3, -5, -6, -7, -8, -9) have hosted payloads for NASA, DARPA, U.S. Space Force / SpaceWERX, Missile Defense Agency, Caltech, University of Colorado Boulder LASP, Aarhus University, and a range of commercial space startups including Solstar, DPhi Space, CisLunar Industries, Portal Space Systems, Orbit Fab, Juno Propulsion, FOSSA Systems, Apogeo Space, Hello Space, Qosmosys, AVS, LuxSpace, CalgaryToSpace, and CONTEC.

The core differentiator is a proprietary water-plasma Microwave Electrothermal Thruster (MET) propulsion system that uses non-toxic water as propellant and is claimed to reduce propulsion system costs by up to one-third versus conventional chemical propellants. The platform also integrates an 8-thruster Reaction Control Subsystem, a Tape Spring Solar Array (TASSA), and a Low-Cost Multispectral Rendezvous and Proximity Operations sensor suite with Wi-Fi-based inter-satellite data links. Momentus co-developed an additively manufactured space-rated titanium fuel tank with Velo3D under a five-year, $15 million supply agreement and plans to commercialize this as a standalone component product.

Momentus generates revenue primarily through milestone-based U.S. government contracts (NASA, DARPA, U.S. Space Force, Missile Defense Agency), per-mission commercial hosted payload and delivery service fees, reciprocal services agreements (notably a three-year, $15 million deal with Solstar Space), and emerging space-rated component sales. FY2025 revenue was $1.1 million with Q1 2026 revenue of $3.2 million (108% YoY) and management forecasting $10 million for full-year 2026 driven by NASA and DoD milestone recognition. The company is publicly traded on NASDAQ under ticker MNTS following an October 2023 SPAC business combination with Stable Road Acquisition Corp that raised approximately $247 million, and has since executed numerous follow-on equity raises, warrant inducement transactions, and a $75 million ATM program, leaving it debt-free with approximately $76 million in cash, cash equivalents, and short-term investments as of mid-2026.

Name

Momentus

Legal name

Momentus Inc.

Website

https://momentus.space

Company type

Public

Founded year

2017

Operating status

Operating

Headcount range

51–100 employees

Short description

Momentus is a U.S. commercial space company that provides in-space transportation, hosted payload services, and in-orbit servicing using its Vigoride Orbital Service Vehicle platform powered by a proprietary water-based Microwave Electrothermal Thruster propulsion system, serving U.S. government agencies (NASA, DARPA, U.S. Space Force, Missile Defense Agency), commercial space startups, and academic institutions.

Ownership category

akta.pro rank

Product category

Commercial Space Transportation and In-Orbit Services

NAICS

Guided Missile and Space Vehicle Manufacturing (336414), Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing (336415), Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing (336419)

SIC

Guided Missiles & Space Vehicles & Parts (3760)

akta.pro primary industry

Spacecraft & Satellites (Civil/Commercial) (IMABACAB)

akta.pro secondary industries

Space Logistics & In-Orbit Servicing (Refueling, Tug, Debris Removal) (IMABACAM), Spacecraft Propulsion (In-Space) & Thrusters (IMABACAE), Ground Segment Systems (Ground Stations, TT&C, Mission Ops) (IMABACAJ)

Keywords

• Satellite transportation services
• Orbital service vehicles
• Hosted payload services
• In-orbit servicing
• Space propulsion systems

Headquarters

HQ city

Santa Clara

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Technology or R&D, Personnel, Operations, Infrastructure, Marketing or Sales, Supply Chain

Revenue model

1. Government Contracts (NASA, DARPA, U.S. Space Force, MDA): Long-cycle milestone-based contracts with U.S. government agencies for hosted payload missions and in-space service demonstrations. Example contract values include ~$4.2M (DARPA) and ~$1.9M (SpaceWERX) for Vigoride-7 mission. Forecast: $10M revenue in 2026 vs $1.1M in 2025 from milestone-based contracts with NASA and U.S. Department of Defense.
2. Commercial Hosted Payload and Delivery Services: Per-mission service fees for delivering customer satellites to custom orbits and operating hosted payloads in low Earth orbit. Customers include commercial constellations, IoT operators, edge computing providers, and academic institutions. Vigoride-7 hosts 10 customer payloads on a single mission.
3. Strategic Partnership Reciprocal Services: Multi-year reciprocal services agreements with partners such as Solstar Space (three-year, $15M) that combine in-orbit services, hosted payload capacity, and revenue sharing arrangements.
4. Space-Rated Component Sales (Additively Manufactured Fuel Tanks): Future commercial product offering for additively manufactured space-rated fuel tanks to other spacecraft manufacturers and operators, leveraging Velo3D 3D-printing technology under a five-year, $15M supply relationship.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

Momentus provides in-space transportation and hosted payload services via its Vigoride Orbital Service Vehicle (OSV), a water-propellant-powered orbital transfer and servicing platform. The company sells two service modules: a Delivery Service that transports customer satellites to custom orbits and a Hosted Service that provides long-duration orbit transfer, attitude control, power (up to 3 kW peak), and communications interfaces for customer payloads in low Earth orbit. Customers include U.S. government agencies, commercial space startups, satellite constellation operators, and academic research institutions.

Product overview

Momentus Inc. is a U.S. commercial space company offering a single integrated platform — the Vigoride Orbital Service Vehicle (OSV) — under a platform-plus-modules architecture. The Vigoride platform, powered by the proprietary Microwave Electrothermal Thruster (MET) water-plasma propulsion system and augmented by the Tape Spring Solar Array (TASSA), delivers two commercial service modules: (1) the Delivery Service for point-to-point payload transportation and deployment, and (2) the Hosted Service for long-duration orbit transfer, attitude control, power, and communications support of customer payloads. The platform is also offered in a derived form as the low-cost M-1000 Commercial Satellite Bus. Mission variants (Vigoride-3, -5, -6, -7, -8, -9) represent sequential flights of the same OSV product line, with Vigoride-7 currently operational after its March 2026 launch and Vigoride-9 contracted for a 2027 hosted-payload mission.

Differentiator

Problem solved

Functional benefit

Brands

• Vigoride: Momentus' flagship Orbital Service Vehicle (OSV) platform powered by an innovative water plasma-based propulsion system (Microwave Electrothermal Thruster/MET), used for satellite delivery, hosted payload services, and in-orbit services. Successive vehicles include Vigoride-3, Vigoride-5, Vigoride-6, Vigoride-7, and Vigoride-9.
• M-1000 Commercial Satellite Bus

Products and services

• Vigoride Orbital Service Vehicle (OSV) Reusable orbital transfer and service platform that delivers satellites and hosted payloads between orbits in low Earth orbit. Provides orbit transfer and maintenance, attitude control, and power and communications interfaces for telemetry, commanding, and downlinking of payload data. Successive missions include Vigoride-3, Vigoride-5, Vigoride-6, Vigoride-7 (operational), Vigoride-8 (booked for NASA missions in 2027), and Vigoride-9 (hosting LASP OWLS mission, 2027 launch).
• Delivery Service Point-to-point transportation and deployment service for customer satellites delivered via the Vigoride OSV platform. Provides orbital transfer and deployment of small satellites into desired orbits in low Earth orbit, including IoT constellations, Earth observation satellites, and government payloads.
• Hosted Service Hosted payload service built on the Vigoride OSV that provides orbit transfer and maintenance, attitude control, and power (up to 3 kW peak) and communications interfaces for telemetry, commanding, and downlinking of payload data for the full duration of customer missions. Powers contracts with NASA, DARPA, U.S. Space Force, and commercial customers for in-orbit demonstrations and operations.
• M-1000 Commercial Satellite Bus Low-cost commercial smallsat bus derived from the Vigoride platform. Offered alongside transportation services as a standardized smallsat platform for commercial customers needing a turnkey satellite bus.
• Additively Manufactured Space-Rated Fuel Tank Planned commercial product: a 3D-printed titanium pressure tank produced with Velo3D metal additive manufacturing technology, featuring optimized internal geometries difficult to achieve via traditional manufacturing. Qualified as a space-rated component and intended for sale to other spacecraft manufacturers and operators.

Quantifiable outcome

• Reduced propulsion system costs by up to one-third versus conventional toxic-fuel chemical propulsion (water-based MET)
• +5 more outcomes

Named customers22 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature5 records

Partnerships

13 partnerships are on record, tiered core partnership, flagship partnership and minor partnership.

• Portal Space Systemscore partnershipStrategic or Co-development Partner · 9 April 2026Portal Space Systems' Mini-Nova payload launched on SpaceX Transporter-16 aboard Momentus Vigoride-7 for in-orbit demonstration of solar thermal propulsion technology. Portal raised $50M Series A in April 2026 and has additional contracted missions on Transporter-18 and beyond, expanding the partnership.
• NASAflagship partnershipStrategic or Co-development Partner · 23 February 2026Space Act Agreement with NASA for in-orbit servicing mission demonstration. Momentus delivers NASA's R5-S10 CubeSat aboard Vigoride 7 Orbital Service Vehicle scheduled for launch no earlier than March 2026 to perform joint RPO demonstrations with NASA's Small Spacecraft Technology program funding. Also selected by NASA for VADR contract in 2024 and holds $45M flight and payload integration contract.
• DARPAflagship partnershipStrategic or Co-development Partner · 23 February 2026Contract worth approximately $4.2 million for ASTRA (in-space assembly of truss structure using robotic arms) hosted payload on Vigoride-7 mission launched on SpaceX Transporter-16. The ASTRA payload was produced by Caltech.
• CisLunar Industriescore partnershipTechnology or Integration · 12 February 2026CisLunar Industries launched its EPIC power processing technology demonstration on SpaceX Transporter-16 aboard Momentus Vigoride-7 as part of a NASA-funded Flight Opportunities program. EPIC validates power processing across 1 to 100 kilowatts with greater than 95% efficiency for dynamic space operations and in-space servicing.
• U.S. Space Force / SpaceWERXflagship partnershipStrategic or Co-development Partner · 9 February 2026$1.86 million contract with SpaceWERX to demonstrate a Low-Cost Multispectral RPO Sensor suite designed for spacecraft situational awareness, autonomous satellite servicing, and space debris management. Mission also tests Wi-Fi-based inter-satellite data links between NASA cubesat and Vigoride host platform.
• Velo3Dcore partnershipTechnology or Integration · 5 January 2026Multi-year strategic agreement including a five-year, $15 million supply contract. Co-developed an additively manufactured space-rated titanium fuel tank produced using Velo3D's metal 3D printing technology, flight-tested on Vigoride-7. The tank demonstrates optimized internal geometries difficult to achieve via traditional manufacturing and Momentus plans to offer space-rated fuel tanks as a commercial product.
• U.S. Department of War / Missile Defense Agency (SHIELD program)flagship partnershipStrategic or Co-development Partner · 10 December 2025Momentus selected for the SHIELD contract vehicle with a ceiling of up to $151 billion over 10 years covering missile tracking, resilient communications, and other national defense missions. Momentus plans to use its Vigoride OSV platform to accelerate technology demonstrations in space-based missile defense and space domain awareness.
• DPhi Spacecore partnershipStrategic or Co-development Partner · 30 October 2025Partnership contract to fly edge computing payloads on Momentus' next mission and for future revenue sharing. Enables in-orbit AI inference demonstrations and GPU-accelerated data compression workflows. Includes Tilebox contracted in-orbit demonstration for March 2026.
• Solstar Spaceflagship partnershipStrategic or Co-development Partner · 13 October 2025Three-year reciprocal services agreement valued at up to $15 million to provide satellite transportation and in-orbit services. Combines Solstar's space-based communication products with Momentus' logistics and deployment services. Joint spaceflight scheduled for February 2026 carrying Solstar's Deke Space Communicator to demonstrate in-space Wi-Fi hotspot capabilities for LEO connectivity.
• RIDE! Spaceminor partnershipGTM or Marketing Partner · 8 November 2023Collaboration to connect smallsat operators to in-space services via RIDE! Space's marketplace platform.
• Axientminor partnershipStrategic or Co-development Partner · 1 June 2023Collaboration on space services spanning low-Earth orbit to cislunar space.
• SpaceXflagship partnershipOEM/ Whitelabel/ Licensing Partner · 12 May 2023Launch Services Agreement signed with SpaceX enabling Vigoride OSV launches on SpaceX Falcon 9 Transporter rideshare missions. Vigoride vehicles have flown on Transporter-5, -6, -7, and -16 with future missions on Transporter-18 and beyond. Provides scheduled launch capacity for Momentus' hosted payload customers.
• Qosmosysminor partnershipStrategic or Co-development Partner · 31 August 2021Expanded cooperation on lunar logistics services. Announced first Singaporean lunar mission on Momentus' Ardoride Service Vehicle in February 2021.

Scale indicators11 records

Recent moves8 records

Expansion highlights7 records

Broad incumbents

• Rocket Lab: Rocket Lab operates the Electron and Neutron launch vehicles and the Photon and Pioneer satellite buses for LEO missions, with growing in-space services capability. A broader space services incumbent with overlapping bus manufacturing and smallsat launch offerings.
• Firefly Aerospace: Firefly provides launch services (Alpha rocket) and in-space vehicles (MLV lunar lander, Space Utility Vehicle) for commercial and government customers. A broader incumbent with overlapping space transportation and orbital services capabilities versus Momentus.
• Northrop Grumman: Northrop Grumman's Space Systems division builds spacecraft buses, ESPAStar orbital platforms, and in-orbit servicing vehicles (Mission Extension Pods) for U.S. government and commercial customers. A large incumbent competing for the same government hosted-payload and RPO contracts that Momentus is targeting.

Direct peers

• D-Orbit: D-Orbit is an Italian in-space transportation and hosted payload service provider operating the ION Satellite Carrier for last-mile delivery and hosted services in LEO. Directly comparable to Momentus's Vigoride OSV business model and customer base of smallsat operators and government agencies.
• York Space Systems: York Space Systems manufactures standardized smallsat buses (S-Class) and provides mission integration services for U.S. government and commercial customers. A direct peer in commercial satellite bus production with similar cost-disruption positioning.
• Redwire Space: Redwire provides space infrastructure, including deployable structures, in-orbit services (ROSA solar arrays, SABERS power), and smallsat platforms for commercial and government customers. Comparable as a space infrastructure provider serving similar government/defense and commercial constellations.
• Loft Orbital: Loft Orbital provides hosted payload services through its Longbow and YAM smallsat buses, allowing customers to fly instruments and applications on a shared platform. Closely comparable to Momentus's hosted payload service on Vigoride, with similar customer focus on constellations, government, and research.
• Exolaunch: Exolaunch provides launch integration and orbital deployment services for smallsats, including hosted payload and rideshare management on Falcon 9 Transporter missions. Comparable as a smallsat deployment and hosted services partner for commercial constellation operators.
• Impulse Space: Impulse Space provides in-space transportation services via the Mira orbital transfer vehicle and Helios kick stage. Comparable in offering last-mile delivery and hosted payload services to commercial and government customers in LEO.

Emerging players

• Atomos Space: Atomos Space is developing orbital transfer vehicles (Quark) for moving payloads between orbits and providing hosted payload services. An emerging direct peer in the in-space transportation and servicing market with comparable mission profile.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/momentusspace
• Facebookfacebook.com/momentusspace
• LinkedInlinkedin.com/company/momentusinc

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Funding overview

Funding rounds17 records

Investors23 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Momentus