Antaris
Antaris is a cloud-based satellite mission software platform company serving U.S. defense agencies and commercial space operators with AI-powered design, digital twin simulation, and autonomous constellation operations tools. Founded 2021, Los Altos-based, with missions flown for Space Force and international partners.
- Company typePrivate
- Founded2021
- HeadquartersLos Altos, United States
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Antaris does
Antaris is a private U.S. space technology company founded in 2021 and headquartered in Los Altos, California, that develops a cloud-based AI-powered software platform for designing, simulating, and operating satellite missions. The Antaris Cloud Platform comprises five integrated products: Antaris Intelligence (the AI layer for mission design and autonomous operations), Design Studio (catalog-driven mission configuration), TrueTwin (high-fidelity digital twin simulation with hardware-in-the-loop support), Command Center (constellation orchestration and C2), and SatOS (space vehicle software stack supporting both full deployment and customer-software integration). The platform supports any payload, any bus, and any mission including ground segment, and includes open APIs, the SatOS Payload SDK, and open source reference designs.
The company targets two primary customer segments: U.S. defense and government (Department of Defense, Space Force, Space Development Agency, Space Systems Command, SpaceWERX) and commercial satellite operators across Earth Observation, ISR, communications, and SSA. Business model combines enterprise SaaS subscriptions with mission-specific Project Agreements on annual billing terms, supplemented by professional services. Distribution is enterprise field sales augmented by channel partnerships with manufacturing partners (XDLINX Labs, Ananth Technologies), ground station integrators (Infostellar, Atlas Space Operations), and a regional solutions entity in India.
Antaris has demonstrated its platform through the JANUS satellite series (JANUS-1 successfully launched February 2023 aboard ISRO's SSLV-D2, JANUS-2 and JANUS-3 in pipeline) and through named missions including TWINSAT (SDA), TWIN FORGE (SSC/U.S. Space Force), ELEVATION-1 (Almagest), Drishti-1 (GalaxEye), and a 16-satellite SAR/optical constellation for Saudi Arabia with SARsatX. Total disclosed funding is approximately $38.75 million across seed (August 2022, $4.2M), preferred seed (September 2023, $3.5M), Series A first close (March 2026, $28M), and strategic (April 2026, $250K), with WestWave Capital leading Series A and Lockheed Martin Ventures participating as a strategic investor.
Antaris firmographics
Firmographics- Name
- Antaris
- Legal name
- Antaris, Inc.
- Website
- https://antaris.space
- Company type
- Private
- Founded year
- 2021
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Antaris is a cloud-based satellite mission software platform company serving U.S. defense agencies and commercial space operators with AI-powered design, digital twin simulation, and autonomous constellation operations tools. Founded 2021, Los Altos-based, with missions flown for Space Force and international partners.
- Ownership category
- akta.pro rank
Antaris industry classification
Industry- Product category
- Satellite Mission Software Platform
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Software Publishers (5132), Satellite Telecommunications (51741)
- SIC
- Services-Prepackaged Software (7372), Guided Missiles & Space Vehicles & Parts (3760)
- akta.pro primary industry
- Spacecraft Avionics, Flight Computers & Software (IMABACAI)
- akta.pro secondary industries
- Managed Application Platforms (App PaaS & Runtime Services) (HDABAAAD), AI Application Enablement Platforms (Copilot/Agent Frameworks, SDKs) (HDAEANAJ), Satellite Network Operations & Capacity Services (NOC, Capacity Leasing, Managed Payload Services) (HDAIAJAI)
Keywords
Where Antaris is headquartered
LocationHeadquarters
- HQ city
- Los Altos
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Antaris business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Infrastructure, Operations, Marketing or Sales
Revenue model
- Software Platform Subscription (SaaS): Subscription-based access to the Antaris Platform for satellite design, testing, and simulation. Customers pay subscription fees based on annual periods. Includes Support Services.
- Project Agreements: Ordering documents required for purchase of Services and use of Spacecraft Software executed by the parties. Includes Satellite Software licensing.
- Platform Services: Services supporting U.S. military satellite missions and international partnerships. Includes Full Mission Virtualization capabilities.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Enterprise Platform Subscription |
Go-to-market motion2 records
Distribution channels5 records
Marketing channels8 records
Antaris product offering
Product offeringCore offering
Antaris sells a cloud-based AI-powered satellite mission platform that virtualizes every phase of the mission lifecycle — from design and simulation through launch, delivery, and on-orbit operations — for government and commercial satellite operators. The platform is delivered as an integrated suite of five products (Antaris Intelligence Platform, Design Studio, TrueTwin, Command Center, and SatOS) supported by Full Mission Virtualization, open APIs, and an open source SDK, enabling customers to build, launch, and operate constellations faster and at lower cost.
Product overview
Antaris is a space technology company offering a cloud-based software platform for satellite mission design, simulation, and operations. The platform is architected as a platform-plus-products model centered on the Antaris Cloud Platform, which encompasses five integrated products: Antaris Intelligence (AI-powered mission platform), Design Studio (satellite design tool), TrueTwin (high-fidelity digital twin simulation), Command Center (mission orchestration and C2), and SatOS (space vehicle software stack). These core products are supported by the Full Mission Virtualization capability, which virtualizes every phase of the mission lifecycle from design through on-orbit operations. The platform is designed to be open and extensible, featuring open APIs, open source SDKs, and a Satellite Design Library of reference designs. The company has also developed a series of JANUS demonstration satellites (JANUS-1, JANUS-2, JANUS-3) to showcase its platform capabilities in orbit. The platform serves government defense and commercial customers across Earth Observation, ISR, Communications, SSA, Climate Monitoring, and ISAM mission types.
Differentiator
Problem solved
Functional benefit
Brands
- Antaris Intelligence: AI-powered satellite mission platform supporting satellite design, simulation, and autonomous operations
- TrueTwin
- SatOS
- Command Center
- Design Studio
- Full Mission Virtualization
Products and services
- Antaris Intelligence Platform AI-powered satellite mission platform that supports the complete satellite lifecycle from design and simulation through autonomous operations and on-orbit management; serves as the central AI engine of the Antaris offering for government and commercial operators.
- Antaris Design Studio Cloud-based web tool for rapid mission and satellite design, enabling designers to configure a production satellite from a catalog of components, subsystems, and reference designs.
- TrueTwin High-fidelity digital twin simulation environment that mirrors and tests satellite configurations by running identical code in virtual and physical environments, with optional hardware-in-the-loop support and API-driven access; powers Full Mission Virtualization for pre-launch testing and continuous on-orbit operations.
- Command Center Mission control and orchestration system for provisioning, activation, and management of satellites and constellations at scale; automates constellation operations, optimizes mission schedules, enhances tasking, and manages ground segment assets.
- SatOS Complete space vehicle software stack available as a full software stack or for integration with customer-provided software; manages core bus responsibilities while orchestrating multi-tenant payloads and onboard computing, with support for real-time operating systems, Linux, and AI/ML workflows.
- Antaris Cloud Platform Unified cloud-based platform encompassing Antaris Intelligence, Design Studio, TrueTwin, Command Center, and SatOS; supports any payload, any bus, and any mission including ground segment, and provides open APIs and core open source elements for integration.
- Full Mission Virtualization End-to-end mission virtualization capability spanning the entire mission lifecycle from design and simulation through delivery and on-orbit ops; enables government and commercial operators to build, launch, and operate constellations faster with less risk using virtual twin technology.
Quantifiable outcome
- 75% cost savings and 10-month timeline for JANUS-1 satellite vs comparable missions
- +3 more outcomes
Companies that use Antaris
Customer profileNamed customers7 records
Segments4 records
Ideal customer profiles3 records
Antaris technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration8 records
AI capability6 records
Feature6 records
Antaris partnerships and signals
Strategic signalPartnerships
Twelve partnerships are on record, tiered major.
- TranscelestialmajorMOA to jointly develop persistent ISR architecture integrated with high-throughput optical communications for LEO. Flight validation planned on JANUS-2 mission Q4 2026.
- SARsatXmajorMOA to deliver 16-satellite SAR and optical Earth Observation constellation for Saudi Arabia. Enables localization of space products and development of domestic capabilities.
- InfostellarmajorIntegration of Infostellar's StellarStation ground segment-as-a-service with Antaris mission planning platform. Enables automated ground station pass scheduling and execution.
- Saudi ExcellencemajorPartnership to advance space capabilities in Saudi Arabia as part of national space initiative.
- InnoflightmajorIntegration of cyber-secure avionics including software-defined radios, secure network routers, encryption modules into Antaris Cloud Platform for rapid prototyping.
- Almagest Space CorporationmajorELEVATION-1 mission partnership for E-band technology demonstration. Antaris platform powered successful launch and operations.
- SEAKR EngineeringmajorIntegration of SEAKR hardware including Sentinel product line into Antaris Cloud Platform for remote HITL testing and certification supporting DoD contracts.
- AalyriamajorIntegration of Aalyria's Spacetime network orchestration technology with TrueTwin for constellation-scale satellite mesh network simulations.
- SpeQtralmajorJoint deployment of quantum-safe key distribution satellites integrating SpeQtral's quantum payloads with Antaris SatOS and TrueTwin.
- GalaxEyemajorWorld's first satellite with both SAR and optical sensors. Antaris provides platform for design, simulation, and operation of Drishti-1 mission.
- XDLINX LabsmajorPrimary manufacturing partner for JANUS satellites and other missions. Provides bus hardware and integration services.
- Ananth TechnologiesmajorAIT services and manufacturing capabilities. Mission-as-a-Service provider with facilities across India.
Scale indicators14 records
Recent moves6 records
Expansion highlights5 records
Antaris competitors and assessment
Company assessmentDirect peers
- Slingshot Aerospace: Slingshot Aerospace provides a space domain awareness and digital twin platform for satellite operators and the DoD, directly overlapping with Antaris' TrueTwin simulation and Command Center constellation management capabilities for defense and commercial customers.
- LeoLabs: LeoLabs operates a global space situational awareness and satellite tracking platform with a software/data layer used by satellite operators and governments, comparable to Antaris' cloud-based satellite mission and monitoring offering.
- Loft Orbital: Loft Orbital offers a satellite mission-as-a-service platform that integrates bus, payload, and ground segment for customers, directly comparable to Antaris' Full Mission Virtualization and JANUS mission model for delivering end-to-end satellite solutions.
Emerging players
- Kayhan Space: Kayhan Space provides autonomous space situational awareness and satellite collision avoidance software for constellation operators, an emerging direct competitor to Antaris' Command Center autonomous constellation operations offering.
- Apex Space: Apex Space manufactures standardized satellite buses with software-configurable payloads for commercial constellations, overlapping with Antaris' any-bus/any-payload platform positioning and serving similar commercial and defense customers.
- Orbit Fab: Orbit Fab is building in-space servicing and refueling infrastructure with a software/marketplace layer for satellite operators, adjacent to Antaris' SatOS and ISAM-related work via SpaceWERX Orbital Prime.
Broad incumbents
- CesiumAstro: CesiumAstro builds full-stack satellite communication systems including hardware and software for constellation operators, a broader incumbent with overlapping platform-style offerings to commercial and defense satellite customers.
- Terran Orbital: Terran Orbital designs, manufactures, and operates satellites and constellations with embedded software platforms, an established incumbent whose end-to-end mission model is comparable to Antaris' Full Mission Virtualization offering, and whose former Chief Solutions Officer Eric Truitt now advises Antaris.
- Ansys (STK - Systems Tool Kit): Ansys' Systems Tool Kit (STK) is the incumbent space mission simulation and analysis software used broadly across aerospace and defense, the most established direct competitor to Antaris' TrueTwin and Design Studio for mission design and analysis workflows.
Regional players
- Phantom Space Corporation: Phantom Space is a launch and satellite services company with which Antaris has signed a preliminary partnership; both serve satellite operators with end-to-end mission services but Phantom focuses on launch while Antaris focuses on the software platform.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Antaris social profiles
Digital presenceAntaris financial estimates
Financial estimateRevenue estimate
Valuation estimate
Antaris leadership team
Management profileNumber of profiles
Profiles9 records
Antaris subsidiaries and ownership
Company hierarchySubsidiaries1 record
Antaris funding detail
Funding detailFunding overview
Funding rounds4 records
Investors9 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Antaris M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Antaris
What does Antaris do?
Antaris sells a cloud-based AI-powered satellite mission platform that virtualizes every phase of the mission lifecycle — from design and simulation through launch, delivery, and on-orbit operations — for government and commercial satellite operators. The platform is delivered as an integrated suite of five products (Antaris Intelligence Platform, Design Studio, TrueTwin, Command Center, and SatOS) supported by Full Mission Virtualization, open APIs, and an open source SDK, enabling customers to build, launch, and operate constellations faster and at lower cost.
Is Antaris a public or private company?
Antaris is a private company. It is classified as venture growth investor backed and is currently operating.
When was Antaris founded?
Antaris was founded in 2021. It employs 11 to 50 people.
Where is Antaris based?
Antaris is headquartered in Los Altos, United States, in the North America region.
How does Antaris make money?
Three revenue lines are on record. Software Platform Subscription (SaaS) is the primary driver. The others are project Agreements and platform Services.
Who are Antaris's main competitors?
Direct peers on record are Slingshot Aerospace, LeoLabs and Loft Orbital. Emerging players are Kayhan Space, Apex Space and Orbit Fab. Broad incumbents are CesiumAstro, Terran Orbital and Ansys (STK - Systems Tool Kit). Phantom Space Corporation is listed as a regional player.
Does Antaris have an API?
Yes. The Antaris Cloud Platform features open APIs and an open source SDK (Payload Software Development Kit). Well-documented APIs enable payload partners to quickly integrate payloads into SatOS-powered satellites. The platform includes built-in API integrations with various providers including ground station operators. The JANUS-1 press release specifically mentions 'open APIs and core open source elements' and the release of go-satcom library to help the broader space community work with open space communications protocols. Python libraries and Golang libraries are also available for the OpenLST transceiver integration.
What industry is Antaris in?
Antaris's product category is Satellite Mission Software Platform. Its primary akta.pro industry code is IMABACAI, Spacecraft Avionics, Flight Computers & Software, with a secondary code of HDABAAAD, Managed Application Platforms (App PaaS & Runtime Services). Its NAICS code is 5182 and its SIC code is 7372.