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Systellar Space
Techstars '26Sant Julia de Vilatorta, ES · Founded 2024 · 2 employees on LinkedIn · 1 known investors
Find your way into Systellar Space
Systellar provides a design platform called synapse that enables model-based systems engineering for complex physical systems, offering unified workspace for design, requirements management, documentation, and workflow automation with version control and traceability capabilities.
Also known as Systellar · SYSTELLAR SPACE S.L. · Systellar Space SL
Investors · 1
How we know: the Techstars portfolio · open dataset · Top 3000 Accelerator Startups (no YC) 2026-08 · Not right? Tell us
Company profile
researched Sep 2026Systellar Space is a Barcelona-area software company developing synapse™, a unified workspace for model-based systems engineering (MBSE) aimed at hardware engineering teams and AI agents. The platform combines system architecture modelling, requirements management, connected documentation and verification in a single environment with end-to-end traceability, so that a change to a part or a value automatically flags every affected requirement. Systellar positions synapse™ as a way to move teams from document-based to digital engineering without requiring engineers to learn a modelling language or undergo methodology training.
Underneath the interface, synapse™ builds on SysML v2 to produce a machine-readable description of the system. The product provides a version-controlled environment in which engineers and AI agents work in parallel, review changes and see cross-system impact before merging; agents can see the whole system model and act on it by creating architectures, validating requirements, running workflows and tracing impacts. Additional described capabilities include Git-based version control, workflow automation, integration with scripts, models and documents, a natural-language interface, and smartconnect™ for AI-powered automation. The company has also been described as developing Orbitcompass, an AI tool that automates and simplifies space mission design for companies and institutions.
Founding story
Founded in July 2024 and connected to the entrepreneurial ecosystem around Universitat Politècnica de Catalunya (UPC) and Emprèn UPC, from which it received the Impuls UPC award in 2024 and recognition in the university start-up category of the Santander X Awards.
Business model
Systellar develops and offers synapse™ as a software platform to engineering organisations, with website calls to action centred on demo requests and direct contact with the company.
Traction
Recognition includes the Impuls UPC award (2024) and the Santander X Award | Startup Universitaria 2026, selection for the Techstars London Spring 2026 Accelerator, and selection as one of 15 finalists from over 1,600 applicants at the EU Startup Summit 2026 pitch competition. The company is part of ESA BIC Barcelona, Microsoft Founders Hub and NVIDIA Inception.
Latest developments
In 2026 Systellar joined the Techstars London Spring 2026 Accelerator, competed in the London regional finals of The Pitch by Deel and the EU Startup Summit finals in Valletta, won the Santander X Award | Startup Universitaria 2026, and its CTO Alexandre Gol i Mestre spoke on the Demo Stage at the AI Summit Barcelona on 22 September 2026 about AI in hardware engineering.
▸Full profile — market position, technology, go-to-market, geography, history
Market position
An early-stage (pre-seed) Spanish company in aerospace and engineering software, addressing the fragmentation of engineering data across tools, files and teams with an MBSE platform oriented to hardware and space systems.
The company emphasises that engineers can perform MBSE without learning a modelling language or methodology, that requirements update and flag impacts automatically when the design changes, and that AI agents have access to the complete system model and can act on it within a version-controlled environment.
Technology
synapse™ is built on SysML v2 to create a machine-readable system model, with Git-based version control, end-to-end requirements traceability, automated workflows, integration with scripts, models and documents, a natural-language interface, AI agents operating with full system context, and smartconnect™ for AI-powered automation.
Go-to-market
Direct engagement through demo bookings and contact forms on its websites, complemented by visibility at startup and industry events such as 4YFN, the EU Startup Summit, The Pitch by Deel and the AI Summit Barcelona, and by participation in accelerator and incubation networks (Techstars, ESA BIC Barcelona, Microsoft Founders Hub, NVIDIA Inception).
Hardware and complex-systems engineering teams, including those in aerospace, aviation and rail contexts referenced by the company, as well as companies and institutions designing space missions.
Geography
Headquartered in Sant Julià de Vilatorta, Barcelona province, Spain, with activity across Europe including the ESA Business Incubation Centre in Barcelona, the Techstars London accelerator (kicking off in New York City) and pitch events in London and Valletta, Malta.
History
The company was founded in 2024, with SYSTELLAR SPACE S.L. incorporated in Spain on 9 July 2024 and registered in the Barcelona Mercantile Registry with share capital of €20,000 and two joint administrators, Sergi C. and Alexandre G. It received the Impuls UPC award in 2024, joined the ESA Business Incubation Centre in Barcelona, Microsoft Founders Hub and the NVIDIA Inception programme, and exhibited at 4YFN. In 2026 it was selected for the Techstars London Spring 2026 Accelerator, reached the London regional finals of The Pitch by Deel and the finals of the EU Startup Summit pitch competition, won the Santander X Award | Startup Universitaria 2026, and presented at the AI Summit in Barcelona.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 7
launches, deals, and filingsAlexandre Gol i Mestre, Systellar's CTO, gave a talk titled "Satellites, Planes & Trains: Why Hardware's Cursor Moment Just Started" on AI in hardware engineering.
Systellar was named a winner in the university start-up category of the Santander X Awards, run by Banco Santander's Santander X community.
Systellar was one of 15 finalists chosen from over 1,600 applications across Europe and pitched at the EU Startup Summit 2026 in Valletta, Malta.
Systellar was selected to compete in the London regional finals of The Pitch by Deel, presented by JP Morgan.
Systellar joined the Techstars London Spring 2026 global cohort, a three-month program offering mentorship, investment and network access, starting with the global Techstars kickoff in New York City, to support development and adoption of synapse™.
Systellar attended 4YFN, exhibiting with support from ESA BIC Barcelona; listed at Hall 8.1, 4YFN Stand 8.1C33.8B.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 8
primary sources listed
- Systellar Spacesystellar-space.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Systellar Space do?
- Spanish startup building synapse™, an AI-agent-enabled model-based systems engineering workspace for hardware teams.
- Who are Systellar Space's investors?
- Systellar Space's investors include Techstars.
- Where is Systellar Space headquartered?
- Systellar Space is headquartered in Sant Julia de Vilatorta, ES.