Spacecraft Thermal Engineering
30+ space missions.
15+ years of flight heritage.
Expert thermal engineering consulting, training, and post-processing tools for spacecraft programs.
Three pillars, one focus.
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 thermal engineers wish existed to escape the post-processing bottleneck.
Consulting
Thermal analysis, TVAC testing, design reviews, and troubleshooting for space missions. From architecture to test correlation — the person you brief is the person who builds the model.
View servicesTraining
Practical thermal control training built on real flight experience. Reference material since 2011.
Explore the courseThermaPost®
Eliminate the post-processing bottleneck. Margin tracking, model comparisons, report-ready visuals.
Learn moreFlight 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 SA
Satellite IoT
Switzerland
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.
Eliminate the
post-processing bottleneck.
Your simulation finished hours ago, but the insight is still buried in spreadsheets. ThermaPost® reads ESATAN-TMS and Thermica outputs, plus CSV and Excel exports from other software (Thermal Desktop, NX Siemens) — computes margins automatically, generates report-ready deliverables, and tracks changes across model versions. From solver output to margin table in 60 seconds.
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®.