CesiumAstro

What CesiumAstro does

CesiumAstro is a U.S.-based, venture-backed space and defense communications hardware company that designs and manufactures full-stack RF systems spanning active electronically steered array (AESA) antennas, software-defined radios, reconfigurable digital processors, and integrated satellite payloads. Founded in 2017 and headquartered in Austin, Texas, the company sells flight-qualified Ka-band communications payloads (Vireo Ka 288 and Ka 576), single-beam payloads (Nightingale), a mission-ready integrated satellite bus (Element), mobile SATCOM terminals (Skylark), and a modular component family (SDR-1001/2051/2104/3104, RPU, RDP-23FV, PSM-28C531, SBC-1461) for space, air, ground, and maritime platforms. Its core technology differentiator is full vertical integration from antenna aperture to digital backend, with FPGA-based on-orbit reconfigurability, AS9100D/ISO 9001-certified manufacturing, and flight heritage demonstrated across eight SpaceX rideshare missions.

The company monetizes primarily through B2B/government hardware sales on multi-year fixed-price contracts, with a field sales motion and a dedicated CRO, supported by event-driven marketing, prime-contractor integration channels (e.g., Rocket Lab's Pioneer bus), and direct engagement with U.S. and allied government buyers. Customer concentration is heavily defense-weighted, anchored by the U.S. Space Development Agency (Tranche 2 Transport Layer Beta), Missile Defense Agency (GMD IFICS), U.S. Air Force, NASA, and the Taiwan Space Agency, with CEO-stated ambitions to grow commercial revenue to 50% of total by 2030, targeting automotive connectivity (via Toyota/Woven Capital) and commercial LEO constellation operators. As of early 2026, the company employs 300–400+ people across the U.S., UK, Germany, and Japan, is building a 270,000 sq ft Austin manufacturing facility backed by $500M+ in total Texas investment, and has raised approximately $470M in equity plus $200M in EXIM/JPM debt to scale production and deploy AI-enabled platforms following its acquisition of AI firm Vidrovr.

Name

CesiumAstro

Legal name

CesiumAstro Inc.

Website

https://cesiumastro.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

101–250 employees

Short description

CesiumAstro designs and manufactures active phased array antennas, software-defined radios, and integrated satellite communications payloads for U.S. defense agencies, allied governments, and commercial space customers, with full-stack RF systems spanning modules to complete spacecraft.

Ownership category

akta.pro rank

Product category

Space Communications Hardware

NAICS

Guided Missile and Space Vehicle Manufacturing (336414), Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511), 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

Space Payloads & Instruments (Sensors, Comms, EO/IR) (IMABACAD)

akta.pro secondary industries

Spacecraft & Satellites (Civil/Commercial) (IMABACAB), Military Space Systems (Defense Spacecraft) (IMABACAC), Military Avionics, Mission Computers & Flight Controls (IMABAMAE)

Keywords

• Space communications systems
• Satellite payloads
• Phased array antennas
• Software-defined radios
• Aerospace hardware manufacturing

Headquarters

HQ city

Austin

HQ country

United States

HQ region

North America

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Space communications hardware and payloads: Sale of active phased array antennas, software-defined radios, reconfigurable processors, and integrated satellite payloads to government and commercial customers. Products are sold as hardware units (one-time purchase) with associated integration and support services. Revenue recognition per unit delivered. Commercial revenue expected to grow to 50% of business by 2030.
2. Government defense communications contracts: Long-term contracts with U.S. government agencies (Missile Defense Agency, DoD, NASA, SDA) for mission-critical communications systems. Contract-based revenue with development, integration, and delivery phases.
3. International government satellite programs: Contracts with allied government space agencies (Taiwan Space Agency) for space payloads and ground terminals. Delivers complete communications systems including SDR space payloads and Skylark user terminals.
4. Professional services and integration: Engineering and integration services supporting customer programs, including payload integration, system configuration, testing, and mission support. Provided alongside hardware sales to defense and commercial customers.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

CesiumAstro designs, manufactures, and tests out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space or airborne platforms. Its portfolio spans active electronically steered array (AESA) Ka-band payloads, software-defined radios, reconfigurable digital processors, and fully integrated mission-ready satellites (Element). Products are sold as flight-ready hardware configured to customer mission requirements, primarily to U.S. and allied government defense agencies and commercial aerospace companies.

Product overview

CesiumAstro delivers a comprehensive portfolio of flight-ready communication systems spanning from individual modules to fully integrated spacecraft. The product architecture follows a platform-plus-components approach: the Element mission-ready satellite serves as the flagship integrated system combining Vireo Ka 288, Nightingale, and Vireo L payloads; Skylark provides the mobile SATCOM terminal solution; the Vireo Ka family (576 and 288) offers space-based multi-beam Ka-band connectivity payloads; Nightingale delivers single-beam Ka-band payloads; and the module lineup includes Reconfigurable Processing Unit (RPU), software-defined radios (SDR-3104, SDR-2104, SDR-2051, SDR-1001), Reconfigurable Digital Processor (RDP-23FV), Power Supply Module (PSM-28C531), and Single-Board Computer (SBC-1461). The company designs, manufactures, and tests all hardware in-house under AS9100-certified processes, serving defense, civil, and commercial markets across space, air, and ground domains.

Differentiator

Problem solved

Functional benefit

Brands

• Element: Mission-ready satellites with advanced, adaptable technology for defense and commercial missions.
• Skylark
• Vireo
• Nightingale

Products and services

• Element Mission-Ready Satellite Fully integrated mission-ready satellite combining Vireo Ka 288 multi-beam AESA, Nightingale single-beam Ka-band, and Vireo L command-and-control payloads for defense and commercial LEO missions. Delivered as a complete spacecraft with scalable mass-manufacturable architecture for single satellites up to full constellation deployments.
• Skylark Mobile SATCOM Terminal Mobile Ka-band multi-beam satellite communications terminal using flat-panel active phased array with no moving parts, designed for air, ground, and maritime platforms. Delivers multi-constellation connectivity with make-before-break handover and modular scalability from small drones to large aircraft.
• Vireo Ka 576 High-Capacity Payload High-capacity Ka-band communications payload that scales the Vireo Ka 288 architecture to support up to 16 simultaneous beams via AESA antennas with multi-user frequency division multiplexing. Delivers 15+ Gbps payload capacity for commercial and military high-throughput LEO connectivity.
• Vireo Ka 288 Multi-Beam Payload TRL 8 Ka-band multi-beam communications payload combining transmit/receive AESA antennas with a reconfigurable processor for electronic beam steering, dynamic power allocation, multi-beam uplink/downlink operations, and proliferated LEO deployment in SDA Tranche-class architectures.
• Nightingale Single-Beam Ka-Band Payload TRL 9 single-beam Ka-band phased array payload certified to NASA GEVS standards, delivering focused, steerable connectivity with deterministic performance, simplified payload architecture, and software-defined reconfigurability for LEO missions.
• Reconfigurable Processing Unit (RPU) Modular onboard processing unit providing full-duplex multi-channel signal processing for flexible payload architectures, supporting on-orbit reconfiguration and mission-specific communications across multiple frequency bands.
• SDR-3104 Software-Defined Radio 3U SpaceVPX software-defined radio with 4 transmit and 4 receive channels and extended low-frequency receive coverage from UHF through Ka-band, supporting multi-channel RF digitization and signal processing with on-orbit reconfiguration.
• SDR-2104 Software-Defined Radio 3U SpaceVPX software-defined radio for 600 MHz to 12 GHz operation with 4 transmit and 4 receive channels, supporting RF digitization, waveform generation, and signal processing for communications, sensing, and ranging applications.
• SDR-2051 UHF Software-Defined Radio UHF software-defined radio designed for lunar surface missions supporting connectivity between lunar landers, rovers, spacesuits, and surface assets at 414.2 MHz or 417.1 MHz.
• SDR-1001 Compact Software-Defined Radio TRL 9 compact software-defined radio for LEO and airborne operations tunable from 300 MHz to 6 GHz with 4x 100 MHz Tx/Rx channels, supporting DVB-S2, DVB-S2X, and CCSDS waveforms and FPGA-based custom waveform development.
• RDP-23FV Reconfigurable Digital Processor High-performance 3U SpaceVPX reconfigurable digital processor with dual-core Arm Cortex-A72 and dual-core Cortex-R5F processors, 8 GB DDR4 ECC memory, and radiation tolerance (20 krad Si TID) for demanding aerospace environments and AI-enabled workloads.
• PSM-28C531 Power Supply Module TRL 8 space-qualified power supply module delivering reliable regulated electrical power with multiple output voltages to SpaceVPX-based spacecraft systems.
• SBC-1461 Single-Board Computer TRL 9 compact single-board computer designed for LEO missions, providing reliable onboard compute, data handling, and system control within integrated satellite architectures.

Quantifiable outcome

• 15+ Gbps payload capacity with Vireo Ka 576 multi-beam system
• +4 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability5 records

Feature10 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Vidrovr (Acquired)coreStrategic or Co-development Partner · 26 February 2026CesiumAstro acquired AI company Vidrovr, specializing in real-time multimodal signal analysis. The acquisition embeds AI into satellite payloads enabling autonomous operations, spectrum efficiency optimization, and a planetary intelligence layer. Vidrovr co-founder Joe Ellis leads the ML integration.
• Airbus (SpaceRAN Consortium)minorStrategic or Co-development Partner · 9 January 2026Part of a 13-company international consortium led by Airbus UpNext for the SpaceRAN (Space Radio Access Network) project to test 5G Non-Terrestrial Network capabilities. CesiumAstro contributes active phased array technology to the open-standard satellite communications initiative alongside Deutsche Telekom, Eutelsat, Keysight, ST Engineering iDirect, and others.
• Taiwan Space Agency (TASA)coreStrategic or Co-development Partner · 1 April 2025TASA contracted CesiumAstro to deliver Vireo Ka SDR space communications payloads and Skylark ground terminals for Taiwan's first national B5G LEO communications satellite constellation. CesiumAstro provides complete space and ground segment for the sovereign constellation program.
• Rocket LabcoreTechnology or Integration · 7 May 2024Rocket Lab selected CesiumAstro to provide Vireo multi-beam Ka-band communications payloads for 18 spacecraft in SDA's Tranche 2 Transport Layer Beta constellation. Payloads integrated onto Rocket Lab's Pioneer satellite bus. This is a production program with payloads shipping to Rocket Lab for integration.

Scale indicators10 records

Recent moves7 records

Expansion highlights7 records

Direct peers

• L3Harris Technologies: Major defense electronics prime and existing CesiumAstro investor (Series B). Competes in space-based RF communications, phased array antennas, and satellite payloads, with much broader portfolio scale and prime contractor relationships across DoD programs.
• Ball Aerospace: Builds satellite payloads, phased array antennas, and RF communications subsystems for classified and civil space programs. Highly comparable as a payload-tier supplier for defense constellations like those CesiumAstro targets.
• Thales Alenia Space: European satellite manufacturer and payload supplier with deep heritage in Ka-band and LEO communications payloads. Direct competitor for international sovereign constellation programs similar to the TASA B5G win.

Broad incumbents

• Honeywell: Aerospace incumbent and CesiumAstro investor; competes via its aerospace electronics and satellite communications subsystems business. Much broader portfolio including avionics, propulsion, and satellite components, providing scale advantages on defense prime programs.
• Lockheed Martin: Largest U.S. defense prime with deep space systems portfolio including satellite buses, payloads, and ground systems. Founder Shey Sabripour's prior employer; competes for both prime and supplier roles on SDA and MDA programs.
• Northrop Grumman: Major defense prime with extensive space-based communications and missile defense portfolios; competes on MDA and SDA programs and supplies phased array and satellite subsystems.
• RTX (Raytheon): Diversified defense prime with significant space electronics, missile defense, and RF communications capabilities. Competes across the defense communications value chain and has deep MDA relationships.
• Airbus Defence and Space: European aerospace prime and CesiumAstro investor/partner (Airbus Ventures, SpaceRAN consortium). Competes in satellite communications payloads and serves as both competitor and collaborator in European sovereign programs.

Emerging players

• Astranis: Venture-backed small GEO satellite operator building its own Ka-band communications satellites; adjacent competitor at the constellation/system level rather than the payload supplier tier.
• Kymeta: Specializes in flat-panel satellite communications terminals for mobile platforms (land, maritime, defense) — directly comparable to CesiumAstro's Skylark product line targeting the airborne and ground SATCOM terminal market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCSvYFsLyP4e_jkmLn6mS3Ig
• LinkedInlinkedin.com/company/cesiumastro
• Xx.com/cesiumastro

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries1 record

Funding overview

Funding rounds10 records

Investors24 records

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

M&A4 records

Investments

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

Frequently asked questions about CesiumAstro