30+ space missions.
15+ years of flight heritage.
Expert thermal engineering consulting, training, and post-processing tools for spacecraft programs.
What TESSA Labs Offers
TESSA Labs is a specialist thermal engineering consultancy based in Madrid, operating globally. Founded by a thermal engineer with 15+ years of direct flight heritage across 30+ space missions — from Solar Orbiter to cryogenic systems. We consult, we train, and we're building the tools we wish existed when we were deep in the post-processing bottleneck.
Consulting
Thermal analysis, TVAC testing, design reviews, and troubleshooting for space missions. From architecture to test correlation.
View servicesTraining
Practical thermal control training built on real flight experience and real case studies. Used as reference since 2011 by instructors and engineers worldwide.
Explore the courseThermaPost™ Early Access
Advanced post-processing, instant model comparisons, and modern visuals for the modern thermal engineer.
Join the early access listFlight Heritage & Expertise
Technical involvement across the full spacecraft lifecycle — from thermal architecture and detailed modelling to TVAC test campaigns and flight model delivery.
Missions
PROBA-3, PLATO, Solar Orbiter, MTG, ISS FSL, Sentinel-4, JUICE… Experience built from cryo to high temperatures, passive to active thermal control methods.
Mission Critical
Technical involvement across ESA flagship, scientific, and commercial missions. Thermal architectures that are flying now.
Systems Perspective
Former Project Manager & Lead Systems Engineer. Deeper understanding of how thermal constraints drive the wider system.
Verification & Test
Extensive TVAC test preparation, execution, and correlation. We don't just simulate; we verify against reality.
Direct Access
No juniors on your deliverable. No account managers. The person you brief is the person who builds the model.
Delivered for programs managed by European prime contractors. From short-duration design reviews to embedded test campaign support and full thermal architecture from Phase A.
“His knowledge and engagement to the project we worked on was exemplary. He is also very easy to talk to and has a very easy way with the people he managed. His research capabilities are also very strong which enables him to always be ahead of the project.”
— Co-Founder, Astrocast
Spacecraft Thermal Control
Practical thermal control training built on real flight experience and real case studies — 30+ international missions of hard-won knowledge in 12 hours.
First developed in 2011 and refined ever since, this course has been used as reference by peers, worldwide instructors, and students/engineers across the space industry. It bridges the gap between textbook theory and real mission practice.
Explore the course12 Modules
From fundamentals to advanced modelling philosophy and best practices.
Real Missions
Case studies from Proba-3, PLATO, Orbital Transfer Vehicle, Solar Orbiter, ISS FSL, MTG, cryogenics, and more.
For Teams
Customizable for companies with on-site or remote delivery. Quick onboarding packages available for fast employee ramp-up.
Since 2011
Used as reference at universities and by engineers worldwide since 2011.
ThermaPost™ —
Eliminate the post-processing bottleneck.
You have the results, but the insight is buried in spreadsheets. Your simulation finished hours ago, but you are still formatting the report. You try to track the impact of design changes across dozens of model versions, but it is a post-process nightmare.
We replace the struggle of extraction with instant clarity, letting you visualize exactly how your margins shift between sensitivities and design loops.
We automate the extraction so you can focus on the physics, not the file handling. Turn raw thermal output into decision-ready intelligence instantly.
Request Early AccessThermaPost™ Features
Direct Extraction
Pull data directly from ESATAN-TMS, Thermal Desktop, and Thermica output files. Bypass the spreadsheet chaos.
Margin Tracking
Automated margin tracking across model versions and design loops. Instantly visualize deltas between iterations.
Sensitivity Comparison
Compare sensitivity runs without manual post-processing. See the impact of parameter changes instantly.
Report-Ready Visuals
Generate report-ready visualizations without Excel reformatting. Decision-quality charts in seconds.
Model Versioning
Model input and results versioning with full traceability across the design lifecycle.
Sovereign Security
Fully encrypted user sessions ensuring your proprietary model data never leaks.
Ready to upgrade your thermal capabilities?
Whether you need immediate consulting support for a critical project, want to level up your team with our training, or want early access to ThermaPost™.