Orbital Transfer Vehicles

Aphelion Orbitals is a New Jersey-based launch vehicle company developing the Helios nanosatellite launch system for regular, scheduled orbital access at low cost.

Aphelion Orbitals

Orbital Debris Removal and Satellite Servicing

Aphelion Orbitals' in-space satellite servicing vehicles and technology for orbital debris removal, life extension, and satellite inspection missions.

Services	Refueling (life extension), debris removal, inspection, repositioning
Target orbits	LEO (debris) and GEO (commercial life extension)
Technology	Autonomous RPO (rendezvous and proximity operations), docking mechanisms
Market	Competing with Northrop MEV, Astroscale, D-Orbit in servicing sector
Mission stage	Development / demonstration phase

price on request

Global pioneer of on-orbit satellite servicing, offering debris removal, life extension, and inspection solutions powered by proven Rendezvous, Proximity Operations, and Docking (RPOD) technology.

Astroscale

Active Debris Removal (ELSA-M / ADRAS-J)

Astroscale's ELSA-M and ADRAS-J missions for commercial and government active debris removal — capturing defunct satellites and rocket bodies for controlled deorbit.

Elsa-d	Launched March 2021 — magnetic capture demonstrator
Elsa-m	Commercial multi-satellite removal vehicle (partnership: OneWeb)
Adras-j	Launched Feb 2024 — non-contact inspection of H-IIA debris (JAXA contract)
Capture method	Magnetic capture (ELSA series); visual inspection (ADRAS-J)
Customers	JAXA (government), OneWeb (commercial)

price on request

Pioneer in space debris removal and satellite life extension services, developing rendezvous, proximity operations, and capture technologies to ensure sustainable orbital environments.

Astroscale US

ELSA-M Life Extension Service

Commercial satellite life extension vehicle that serviced multiple client satellites sequentially in a single LEO mission, using Astroscale's docking plate standard for capture and

Mission type	Multi-client satellite life extension / repositioning / deorbit
Orbit	Low Earth Orbit
Capture method	Astroscale standardized Docking Plate (pre-installed on client satellites)
Multi-client capability	Designed to service multiple satellites sequentially per mission
Customer	Eutelsat OneWeb (LEO constellation)

price on request

Indian in-space propulsion company developing electric and green chemical thrusters and orbital transfer vehicles for missions from nanosatellites to GEO platforms.

Bellatrix Aerospace

Pushpak Orbital Transfer Vehicle

Multi-mission orbital transfer vehicle carrying up to 750 kg of payload with up to 7 km/s of delta-v.

Payload capacity	Up to 750 kg
Delta-v	Up to 7 km/s
Propulsion type	Hybrid (electric + green chemical)
Vehicle class	Orbital Transfer Vehicle (OTV)
Compatible payloads	CubeSats and small satellites

price on request

Clutch Space Systems develops software-defined ground station solutions that dramatically reduce the cost and complexity of satellite communications, enabling ground operators to multiply capacity by an order of magnitude without replacing

UK-based space consultancy and launch brokerage firm with 40+ years of experience connecting satellite operators with launch providers globally.

In-space transportation & logistics — ION Satellite Carrier (OTV); last-mile delivery, hosted payloads.

D-Orbit

GEA — In-Orbit Servicing

GEA is D-Orbit’s proprietary robotic servicing spacecraft under development for the geostationary orbit (GEO) market. The vehicle is designed to perform rendezvous, inspectio

Type	Robotic in-orbit servicing spacecraft
Target orbit	GEO
Capabilities	Inspection / repair / life extension / graveyard transfer
Manipulation	Dual-arm robotic manipulators
First mission	RISE (with ESA), launch 2029

price on request

D-Orbit

ION Satellite Carrier

ION Satellite Carrier (SCV) is D-Orbit’s flagship orbital transfer vehicle. After release from the launcher in the standard rideshare drop-off orbit, ION carries CubeSats and

Type	Orbital Transfer Vehicle (OTV)
Service modes	Precise deployment / constellation phasing / hosted payload
Payload bay	Configurable, multi-payload, plug-and-play I/F
First flight	September 2020 (ION SCV "Lucas")
Compatible launchers	SpaceX Falcon 9 rideshare, Vega-C

price on request

Epic Aerospace builds a network of orbital transfer vehicles (space tugs) that move satellites between orbits after launch.

Epic Aerospace

Chimera GEO

Orbital transfer vehicle for GTO-to-GEO insertion, hosted-payload station-keeping, end-of-life services, and cislunar trans-lunar injection.

Vehicle type	Orbital transfer vehicle (OTV) / space tug
GTO-to-GEO payload capacity	Up to 2,000 kg
GTO-to-GEO transfer time	Under 1 month
Additional services	Hosted-payload station-keeping and end-of-life disposal
Cislunar capability	Trans-lunar injection (TLI) for CAPSTONE-class payloads

price on request

Epic Aerospace

Chimera LEO

Orbital transfer vehicle (space tug) for low Earth orbit maneuvers such as apogee kicks and orbital plane changes.

Vehicle type	Orbital transfer vehicle (OTV) / space tug
Apogee kick capability	Approximately ±450 km
Ltan change capability	Approximately 3 hours change in under 90 days
Propulsion	Non-toxic hypergolic main engine, 900N thrust
Propellant	In-house produced 95-98% concentrated hydrogen peroxide

price on request

Cryogenic propellant management systems for space and energy applications.

Eta Space

Cryo-Dock™

Cryo-Dock is the world's first cryogenic propellant depot in orbit, designed to service spacecraft stages and orbital transfer vehicles with high-energy cryogenic propellants.

Function	In-orbit cryogenic propellant depot
Interface	Standardized automatic umbilical
Serviced vehicles	Spacecraft stages, orbital transfer vehicles

price on request

Canadian software-defined satellite-as-a-service platform letting customers deploy and run applications on shared LEO satellites.

French electric propulsion company; ExoMG™ Hall thrusters for satellite orbit raising, station-keeping, and deorbit; SpaceCloud OTV and SpaceOps software.

Exotrail

spacedrop

Exotrail's spacedrop™ is a comprehensive launch and deployment service dedicated to nano, micro, and small satellites, offering last-mile delivery to any specific orbit across LEO,

price on request

Exotrail

spacehost

spacehost allows you to test your hardware and software or extend your in-orbit assets through a satellite-as-a-service model, providing the in-space heritage critical for business

Pointing performance Slew rate	1°/s x-axis, 1°/s y-axis, 5°/s z-axis
APE	0.1°/s @3σ
AKE	0.05°/s @3σ, Stability 0.001°/s
Power available for customer (LEO)	400 W max
Data (LEO)	5 Mbps (S-band) downlink, 50 kbps (S-band) TM/TC

price on request

Fergani Space is a Turkish space company designing and manufacturing commercial satellites, orbital transfer vehicles, and space components. Founded by Baykar's Selçuk Bayraktar, the company launched Turkey's largest private satellites and

Fergani Space

FGN-TUG-S01

FGN-TUG-S01 is Fergani Space's first-ever indigenously developed orbital transfer vehicle, featuring a hybrid propulsion system that successfully performed the world's first in-spa

Vehicle type	Orbital Transfer Vehicle (OTV)
Model	FGN-TUG-S01
Propulsion system	Hybrid engine
Launch vehicle	SpaceX Falcon 9 Transporter-15
Launch date	28 November 2025

price on request

Alpha small-lift rocket; lunar lander Blue Ghost; Medium Launch Vehicle in development with NG.

Firefly Aerospace

Elytra Orbital Transfer Vehicle

Firefly's reusable in-space transportation vehicle providing responsive payload delivery and on-orbit services across multiple orbits.

Orbit reach	LEO, MEO, GTO, and beyond
Payload hosting	Multiple hosted payloads per mission
Power	Deployable solar panels
Propulsion	Green propellant main engine + resistojets for fine control
Reusability	Designed for multi-orbit, multi-payload missions

price on request

HyImpulse Technologies develops and manufactures hybrid rocket-powered launch vehicles and in-space mobility solutions, offering launch, satellite-as-a-service, and space-data-as-a-service.

HyImpulse Technologies

HyMOVE

HyMOVE is HyImpulse's next-generation Orbital Transfer Vehicle (OTV) designed to provide flexible and efficient in-space transportation services.

Payload capacity	Up to 400 kg
Hybrid engine	N₂O/HTPB, 4 kN thrust class (combined with N₂O/C₂H₆ bi-propellant thrusters)
Oxidizer tanks	Type 3 COPV
Core and thrust structure	Laminated CFRP
Payload plate	Composite sandwich panel

price on request

US in-space mobility company building Mira and Helios orbital transfer vehicles for LEO-to-GEO delivery and precise orbital insertion.

Impulse Space

Helios

Helios is a high-energy kick stage designed to provide same-day delivery to distant orbits for commercial, civil, and government missions, significantly reducing transit times and

Payload Capacity	up to 4,000 kg
LEO to GEO Transit Time	less than 24 hours
Deneb Engine Vacuum Thrust	67 kN (15,000 lbf)
Deneb Engine Isp	380+ seconds
Deneb Engine Propellants	Liquid oxygen and liquid methane

price on request

Impulse Space

Helios Orbital Transfer Vehicle

Impulse Space's Helios — a high-energy orbital transfer vehicle (space tug) using hypergolic propulsion for rapid maneuvering and delivery to MEO, GTO, and beyond.

Vehicle type	Orbital Transfer Vehicle (OTV) / Space Tug
Propulsion	Hypergolic (high thrust, storable)
Target orbits	MEO, GEO, GTO, cislunar, deep space
Vs. mira	Higher energy / longer range missions than Mira (LEO tug)
Compatibility	Rideshare on Falcon 9, Falcon Heavy, and others

price on request

Impulse Space

Mira

Mira is an agile spacecraft providing precise, responsive payload hosting and deployment across any orbit, with flight-proven performance for dynamic space operations.

Orbits	LEO, MEO, GEO, cislunar, and beyond
Payload Capacity	Up to 300 kg
Payload Volume	>1 m³
Payload Interface	4”x4” grid bolt pattern
Delta-V (300 kg payload)	550 m/s

price on request

Impulse Space

Mira Orbital Transfer Vehicle

Impulse Space's chemical propulsion orbital transfer vehicle (OTV) for last-mile satellite delivery from rideshare deployment orbits.

Propellants	Ethane/LOX
Mission type	Last-mile orbital transfer from rideshare drop-off
First mission	January 2024 (Mira-1)
Founder	Tom Mueller (SpaceX propulsion co-founder)
Location	Hawthorne, California, USA

price on request

Infinity Space (OrbitalX) designs and manufactures quantum satellite payloads, trusted-node communications systems, and modular CubeSat platforms for defence, intelligence, and secure communications.

ISISPACE provides launch services, manufactures CubeSat deployers and other launch equipment, and acts as a satellite systems integrator for small satellites.

Innovative Space Logistics

In-Space Logistics Services

Innovative Space Logistics' orbital transfer vehicle and in-space logistics services for last-mile satellite delivery and on-orbit servicing.

Services	Orbital transfer, last-mile delivery, orbit adjustment, on-orbit servicing
Vehicles	Orbital transfer vehicle (OTV) / orbital maneuvering vehicle (OMV)
Customers	Constellation operators, GEO satellite operators, hosted payloads

price on request

InspeCity is an Indian space technology company developing satellite-based inspection and monitoring platforms for Earth observation and on-orbit inspection applications. The company is building small satellite systems capable of providing

InspeCity

VEDA — Vehicle for Life Extension and De-orbiting Activities

InspeCity's on-orbit servicing transport vehicle — carries the RIG robotic guidance module and RAMA robotic arm to perform satellite life-extension servicing and end-of-life deorbi

Vehicle role	On-orbit servicing transport vehicle
Propulsion	Green propulsion technology
Integrated subsystems	RIG (guidance), RAMA (robotic arm), CHAKSU (sensing)
Mission types	Life extension servicing, end-of-life deorbiting
Business model	Pay-as-you-go servicing missions

price on request

US lunar lander company that became the first private company to land on the Moon (IM-1 Nova-C, Feb 2024), under NASA's CLPS lunar delivery program.

Kall Morris Inc provides in-space logistics, scavenging, and long-haul transport solutions, developing spacecraft and systems for satellite mobility and orbital debris management.

Kall Morris Inc

Orbit Change Maneuvers (Laelaps)

KMI offers in-orbit satellite relocation services using its Laelaps spacecraft, which can non-destructively capture, move, and release operational satellites to new orbits.

price on request

Vigoride orbital service vehicle — last-mile delivery, hosted payloads, in-space servicing.

Momentus Space

Vigoride

Vigoride is Momentus' small orbital transfer and service vehicle that uses a water-fed microwave electrothermal plasma thruster to deliver, host, and reposition satellites in low E

Propulsion type	Microwave Electrothermal Thruster using water plasma propellant
Payload capacity	300+ kg
Peak onboard power	Up to 3 kW
Status	Operational / in service since 2022
Flight heritage	Vigoride-3 (May 2022: solar array deployment anomaly, partial payload deployment); Vigorid

price on request

Precision motion control and propulsion systems provider for space and defense applications.

Moog Space Defense Group

SL-OMV (Small Launch Orbital Maneuvering Vehicle)

Moog's 70 kg orbital maneuvering vehicle for rideshare last-mile delivery: deploys up to six 12 kg payloads or CubeSats in precise orbits with up to 200 m/s delta-V capability.

Orbital range	400–700 km
Mission life	<1 year (propellant-limited)
Bus dry mass	70 kg
Bus volume	40-inch diameter × 25-inch tall; 24-inch LV interface
Payload slots	6× containerized 12 kg payloads

price on request

German aerospace components manufacturer producing satellite tanks, CFRP structures, and antenna dishes for European satellite programs.

MT Aerospace

Orbital Propellant Refilling

MT Aerospace is developing the necessary infrastructure to support long-duration missions, satellite servicing, and deep-space exploration by providing reliable, scalable, and effi

price on request

Orbital Operations builds high-thrust, cryogenic orbital transfer vehicles that deliver rapid intercept, defense, and repositioning capabilities in space.

Orbital Operations

Astraeus

Astraeus is a high-thrust, cryogenic space vehicle designed for rapid response and dynamic in-orbit missions, featuring zero boil-off capability and integrated thermal management.

Case	HOSTED PAYLOAD
Payload	300 KG
Delta—v	10 KM/S
Case (2)	LEO→GEO (LEO RETURN)
Payload (2)	3,200 KG

price on request

Outpost Technologies Corporation is building the first orbital factory and through-space shipping service, combining reusable reentry vehicles with in-space manufacturing.

Outpost

Outpost Returnable Vehicles

Outpost offers returnable vehicles designed to transport cargo from orbit to Earth with high precision, supporting in-space manufacturing, warehousing, and rapid terrestrial delive

Landing accuracy	10 meter
Landing accuracy (select conditions)	up to 5 meter
Cargo capacity	From a few grams of rideshare, up to ten tons
Earth delivery time	60 minutes

price on request

Outpost

Outpost Returnable Vehicles (CarryAll Block 1)

Outpost offers returnable vehicles designed for in-space manufacturing, warehousing, and rapid, precise Earth return of payloads from orbit, with the flagship vehicle being CarryAl

Landing accuracy	10 meter
Landing accuracy (select conditions)	up to 5 meter
Payload capacity	From a few grams of rideshare, up to ten tons of cargo
Earth delivery time	60 minutes

price on request

Portal Space Systems develops advanced spacecraft, including the Supernova, for high delta-v maneuverability and multi-orbit operations between Earth and the Moon.

Portal Space Systems

Supernova

Maneuverable, solar-thermal-propulsion spacecraft delivering ~6 km/s of delta-v with on-demand taskability from LEO to cislunar space.

Propulsion	Solar Thermal Propulsion (STP) with deployable mirror concentrators
Delta-v	~6 km/s
Taskability	On-standby, taskable in minutes
Payload swap time	< 24 hours
Orbital range	LEO to cislunar space (LEO, MEO, GEO)

price on request

Designs, builds, and tests reusable LOX/methane rocket engines and orbital transfer vehicles

Rocket Propulsion Systems (RPS)

In-Space Assembly and Manufacturing (ISAM) platform service

Rocket Propulsion Systems (RPS) is developing a complete In-Space Assembly and Manufacturing (ISAM) platform service for businesses that want to manufacture new, 21st century produ

price on request

Rocket Propulsion Systems (RPS)

Lunar Transfers

Lunar Transfers is a service utilizing an Orbital Transfer Vehicle (OTV) to perform Translunar Orbit Injections from a very low Earth orbit into a lunar orbit via a Ballistic Lunar

Propellants	cryogenic LOX/methane
Starting orbit	185 km LEO parking orbit
Target orbit	Near-Rectilinear Halo Orbit (NRHO)
Transfer type	Ballistic Lunar Transfer

price on request

Rocket Propulsion Systems (RPS)

RPS Orbital Transfer Vehicle (OTV)

The RPS Orbital Transfer Vehicle (OTV) is a cryogenic propulsion system designed for rapid and cost-effective orbit transfers from Low Earth Orbit (LEO) to Medium Earth Orbit (MEO)

Full thrust	3,307 lbf
Vacuum ISP	374 sec

price on request

Skyrora designs, manufactures, and deploys rockets and provides space services for small satellite manufacturers and orbital spacecrafts.

Skyrora

Space Tug

The Space Tug is the maneuverable third stage of the Skyrora XL launch vehicle, enabling deployment of multiple payloads into their chosen orbits from a single launch.

Length	2 M
Diameter	1.9 M
Dry mass	530 kg
Loading mass	590 kg
Propellant	HTP / kerosene

price on request

Australian in-space transportation and servicing company — building autonomous Orbital Transfer Vehicles for payload delivery, inspection, debris removal, and life extension across all orbital regimes.

Space Machines Company

Optimus OTV

Australia's first commercial space tug (270 kg), providing last-mile satellite deployment and in-orbit logistics across LEO, MEO, and GEO.

Mass	270 kg
Dimensions	1.5 m × 1.5 m × 1 m
Customer payload capacity	Up to 500 kg
Supported orbits	LEO, MEO, GEO, GTO-to-GEO
Launch vehicle	SpaceX Falcon 9 Transporter-10

price on request

Space Machines Company

Optimus Viper RRV

200 kg rapid-response spacecraft for space domain awareness, proximity inspection, and satellite security operations — deployable within 24 hours of launch.

Mass	~200 kg
Operational range	Within 10 km of target satellites
Deployment speed	Within 24 hours of launch
Operating system	Solstice OS (AI-driven)
Propulsion	Scintilla engine (3D-printed, in-house)

price on request

Space Machines Company

OrbitSide Assist

On-orbit rapid-response service providing satellite inspection, refueling, life extension, repair, and debris management using the Optimus Viper fleet.

Services	Inspection, monitoring, refueling, repair, life extension, debris removal
Response time	Within 24 hours of deployment
Operating range	Within 10 km of target satellite
Platform	Optimus Viper fleet + Solstice OS

price on request

US developer of autonomous satellite rendezvous, proximity operations, and docking (RPOD) spacecraft for on-orbit servicing, life extension, and debris disposal.

Starfish Space

Otter

Otter is a small and affordable servicing vehicle designed to perform satellite life extension and disposal in orbit.

price on request

Starfish Space

Otter Spacecraft — In-Space Servicing

Starfish Space's Otter autonomous servicing spacecraft for rendezvous, capture, refueling, and life extension of GEO and LEO satellites.

Spacecraft	Otter — autonomous rendezvous and servicing vehicle
Autonomy system	Cephalopod — machine vision + lidar for uncooperative targets
Capabilities	RPO, grapple/capture, refueling, attitude stabilization, re-orbit
Target markets	GEO life extension, LEO servicing, debris capture
Contracts	DARPA Orbital Prime, Space Force SDA

price on request

The world's first incubator dedicated exclusively to the Moon, backed by CNES, supporting entrepreneurs developing solutions for sustainable human presence on the lunar surface.

The Exploration Company designs and manufactures reusable space capsules and high-thrust rocket engines, operating across multiple European countries and with offices in the US and UAE.

The Exploration Company

Nyx

Nyx is a reusable European reentry capsule developed by The Exploration Company to deliver cargo to and from space stations in LEO, with a crew-capable variant planned for the futu

Configuration	Conical reentry capsule + cylindrical service module
Diameter (Nyx Earth)	4 m
Height (Nyx Earth)	7 m
Total mass (Nyx Earth)	~8 tonnes
Upmass payload capacity	Up to 4,000 kg to LEO

price on request

Trans Astronautica Corporation (TransAstra) is a deep space technology company pioneering in-space logistics and asteroid mining. Founded in 2017 and backed by NASA, DARPA, AFRL, Space Force, and Y Combinator, TransAstra develops capabiliti

TransAstra

SolarForge™

SolarForge™ is TransAstra’s in-space foundry that harnesses concentrated sunlight to extract propellants, building materials, and other useful products from asteroids and rec

price on request

US on-orbit servicing company with DROID satellites and StarfireOS, providing space domain awareness and in-space logistics.

Turion Space

Droid Space Tug

Turion Space's commercial space tug and debris inspection/removal vehicle combining last-mile delivery with active debris removal.

Vehicle name	Droid
Propulsion	Electric (high-efficiency ion/Hall thruster)
Missions	Last-mile delivery, active debris removal, proximity operations
Customers	DARPA, AFRL, commercial operators
Founded	2021, Irvine, California, USA

price on request

Spanish in-space logistics company; OSSIE rideshare spacecraft, RAMI deployer, and LOLA/LUCAS lunar platforms for non-standard orbit delivery.

UARX Space

OSSIE

OSSIE is UARX Space's modular Orbital Transfer Vehicle (space tug) that delivers CubeSats, PocketQubes and small satellites to custom orbits after a rideshare launch, using an inte

Propulsion type	Chemical (green bi-propellant) or electric, configurable per mission
Propulsion supplier/system	Dawn Aerospace SatDrive / B20 thrusters
Thruster configuration	4 parallel B20 bi-propellant thrusters
Propellant	Nitrous oxide (N2O) oxidizer and propene (C3H6) fuel, green propellant
Specific impulse	~277 s nominal, >285 s with regulated pressure

price on requestdatasheet

Swedish space computing company offering the iX10/iX5 onboard computers, SCOS OS, and LOOM hyperspectral pipeline for AI-enabled satellite operations.

Unibap Space Solutions AB

ION Stellar Stephanus

ION Stellar Stephanus Satellite Carrier is a versatile space vehicle capable of transporting and releasing satellites into distinct orbital slots.

Launch date

2025-11-28

price on request

Indian small-satellite and space-technology startup building CubeSat/nanosatellite platforms and mission management software.