What Surrey Satellite Technology Ltd. does

Surrey Satellite Technology Ltd. (SSTL) designs, manufactures, and delivers small satellite platforms and complete Earth observation spacecraft from its facilities in Guildford and Bordon, UK. The product portfolio spans three standardised bus platforms — SSTL-CUBE for CubeSats, SSTL-MICRO for 11–100 kg microsatellites, and SSTL-MINI for larger applications — complemented by in-house optical payloads (DarkCarb MWIR imager, Precision sub-0.5 m visible/NIR pushbroom, Carbonite+ video, hyperspectral instruments), GNSS reflectometry (GNSS-R) systems, mesh-antenna synthetic aperture radar, and a Lunar Pathfinder Mission Builder service. Since its 1981 founding as a spin-off from the University of Surrey, SSTL has built and launched over 75 satellites, including the recently orbited HydroGNSS twin satellites for ESA and the Juno military reconnaissance satellite for the UK Ministry of Defence.

SSTL serves four primary customer segments: government and institutional space agencies (ESA, UK Space Agency), defence and security organisations (UK MOD, ISTARI ISR constellation), commercial Earth observation operators (SatVu's HotSat thermal-imaging constellation), and emerging space nations whose engineers are trained through SSTL's hands-on customer training programmes — which, since 1981, have helped form space agencies in 6 space-developing countries. The company also supplies turnkey ground-segment software for spacecraft command and control, mission planning, and image processing, alongside operational support services across the mission lifecycle.

SSTL generates revenue through project-based satellite manufacturing contracts with multi-year milestone payments, professional services from customer training, and managed space services for ground segment and operations. Pricing is custom and quote-based per mission. The company is a wholly owned subsidiary of Airbus, governed by a Board with three Airbus non-Executive shareholder representatives, combining specialist small-satellite agility with the capital, supply chain, and compliance infrastructure of a major aerospace group. SSTL employs approximately 360 staff across two UK locations in Southeast England.

Name

Surrey Satellite Technology Ltd.

Legal name

Surrey Satellite Technology Ltd.

Website

https://sstl.co.uk

Company type

Private

Founded year

1981

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Surrey Satellite Technology Ltd. (SSTL) designs, manufactures, and delivers small satellite platforms and Earth observation spacecraft for government space agencies, defence organisations, and commercial operators. The Airbus-owned, Guildford-based firm has built 75+ satellites over 40+ years.

Ownership category

akta.pro rank

Product category

Small Satellite Manufacturing

NAICS

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

SIC

Guided Missiles & Space Vehicles & Parts (3760), Search, Detection, Navagation, Guidance, Aeronautical Sys (3812)

akta.pro primary industry

Spacecraft & Satellites (Civil/Commercial) (IMABACAB)

akta.pro secondary industries

Space Payloads & Instruments (Sensors, Comms, EO/IR) (IMABACAD), Ground Segment Systems (Ground Stations, TT&C, Mission Ops) (IMABACAJ), GNSS/GPS Navigation & Augmentation Systems (IMABAFAC), Satellite Imagery & Remote Sensing Geospatial Platforms (BPAMANAM), Satellite Ground Segment & Gateway Services (Teleports, Gateways, Ground Station-as-a-Service) (HDAIAJAH)

Keywords

• Small satellite manufacturing
• Earth observation spacecraft
• GNSS reflectometry
• Space mission services
• Satellite platform engineering

Headquarters

HQ city

Guildford

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Satellite Manufacturing and Delivery: SSTL designs, builds, and delivers custom small satellites to government, defence, and commercial customers. Revenue is generated through project-based contracts, typically multi-year satellite development programmes with milestone payments.
2. Customer Training Programmes: SSTL runs comprehensive hands-on training programmes where customers send engineers to build satellites alongside SSTL staff. Since 1981, training programmes have enabled space agencies to form in 6 space-developing nations and establish space ecosystems.
3. Space Services and Ground Segment: SSTL provides satellite operations support, ground segment solutions, and mission management services, including turnkey ground segment software for spacecraft command and control, mission planning, and data processing.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

SSTL designs, builds, and delivers custom small satellite platforms (SSTL-CUBE, SSTL-MICRO, SSTL-MINI) along with optical payloads, GNSS reflectometry instruments, lunar mission services, customer training programmes, and ground segment software for government space agencies, defence organisations, and commercial satellite operators. The company provides end-to-end mission support from concept and design through manufacturing, launch, and in-orbit operations.

Product overview

Surrey Satellite Technology Ltd. (SSTL) is a small satellite manufacturer with 40+ years of experience, offering a comprehensive portfolio of satellite platforms, payloads, and mission services. The product lineup includes standardized bus platforms (SSTL-CUBE for CubeSats, SSTL-MICRO for microsatellites 11-100kg, and SSTL-MINI for larger applications), complemented by specialized Earth observation spacecraft, Navigation & GNSS-R systems, and lunar mission services through the Lunar Pathfinder Mission Builder. SSTL provides end-to-end mission support including customer training programmes (where customers build satellites alongside engineers), space services for operational support, and spacecraft subsystems. The company also delivers optical payloads including DarkCarb MWIR imagers, Precision visible/NIR pushbroom imagers, Carbonite+ video imagers, and hyperspectral instruments. Ground segment software completes the offering with turnkey command and control solutions. Notable current missions include the HydroGNSS twin satellites for ESA (first Scout mission), the Juno military reconnaissance satellite for UK MOD, and various commercial Earth observation spacecraft.

Differentiator

Problem solved

Functional benefit

Products and services

• SSTL-CUBE

Quantifiable outcome

• 75+ satellites built and launched over 40+ years with two satellites confirmed in orbit within 90 minutes of liftoff for HydroGNSS
• +2 more outcomes

Named customers4 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

Integration1 record

Feature4 records

Partnerships

Five partnerships are on record, tiered core.

• SatVucoreStrategic or Co-development Partner · 1 March 2026SSTL built HotSat-2, the second satellite in SatVu's commercial thermal-imaging constellation, launched via SpaceX Transporter rideshare in late March 2026. HotSat-2 represents SSTL's transition from a single-satellite demonstration to a multi-satellite constellation operation for SatVu. Three additional satellites (HotSat-4, HotSat-5, HotSat-6) are already under contract with SSTL.
• Oxford Space SystemscoreTechnology or Integration · 9 January 2026Oxford Space Systems (OSS) developed a mesh radar antenna made from gold-coated tungsten wire for the CarbSAR mission, in partnership with SSTL which mounted the antenna onto a small, inexpensive spacecraft capable of capturing high-resolution SAR images of Earth's surface. The antenna was successfully deployed in January 2026.
• European Space Agency (ESA)coreStrategic or Co-development Partner · 28 November 2025SSTL designed and built ESA's HydroGNSS twin satellites, ESA's first Scout mission launched aboard a SpaceX Falcon 9 in November 2025. HydroGNSS will use GNSS reflectometry to measure soil moisture, freeze-thaw states, inundation, and above-ground biomass. The mission completed the journey from concept to orbit in three years on a lean budget of €35 million.
• UK Ministry of DefencecoreStrategic or Co-development Partner · 5 November 2024The UK Ministry of Defence awarded SSTL a £40M ($51.8M) contract for the Juno military reconnaissance satellite, equipped with advanced optical image sensors. Juno will become the UK's second defence reconnaissance satellite after Tyche, joining the ISTARI intelligence, surveillance, and reconnaissance constellation (£968M programme expected to be completed by 2031).
• AirbuscoreOthersSSTL is a wholly owned subsidiary of Airbus, governed by a Board of Directors with three non-Executive Airbus shareholder representatives. SSTL benefits from Airbus policies, processes, controls, and capital resources, while maintaining its specialist small satellite identity and agility.

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Others

• Thales Alenia Space:

Direct peers

• NanoAvionics (Kongsberg NanoAvionics): Lithuania-based smallsat bus manufacturer offering standardised small satellite platforms and constellation services for commercial and institutional customers. Closest peer in standardised microsatellite bus model.
• AAC Clyde Space: Swedish/Scottish small satellite manufacturer offering CubeSat, micro, and mini platforms with operational services. Direct smallsat platform peer across CUBE/MICRO/MINI product lines comparable to SSTL's offerings.
• GomSpace: Danish smallsat manufacturer focused on CubeSats and microsatellites for radio, EO, and scientific missions. Comparable in mission-targeted smallsat platforms and institutional customer base.
• Terran Orbital: US smallsat prime offering satellite design, build, and constellation services to defence (Lockheed partnership) and commercial customers. Comparable in mission lifecycle services, payload integration, and project-based revenue model.
• York Space Systems: US-based small satellite manufacturer producing standardized buses for defence (SDA Tranche programmes) and commercial customers. Most direct peer given similar business model of building small satellites for government/defence primes with project-based contracts.

Emerging players

• ICEYE: Finland-based SAR satellite operator and smallsat builder operating a growing commercial SAR constellation. Comparable in smallsat-SAR payload integration (SSTL's CarbSAR mission with Oxford Space Systems) and commercial EO mission design.
• Satellogic: Argentina/US smallsat operator building a commercial EO constellation with vertical integration. Comparable in sub-meter optical imaging smallsat production and emerging commercial EO market focus.

Broad incumbents

• OHB SE: European mid-cap aerospace prime manufacturing satellites and space systems for ESA and institutional customers. Overlaps with SSTL in European institutional space manufacturing but operates at broader, larger-scale portfolio level.
• Planet Labs: US-listed commercial EO constellation operator with vertically integrated smallsat manufacturing. Adjacent in EO smallsat operations and bus production but operates at much larger commercial scale with a different ownership/data model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key highlights7 records

Customer concentration

• Xx.com/surreysat

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

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 Surrey Satellite Technology Ltd.