Observatoire de Paris

What Observatoire de Paris does

Observatoire de Paris is a French public research institution (Établissement public à caractère scientifique, culturel et professionnel) founded in 1667 and operating across three campuses in Paris, Meudon, and Nançay. It is the largest national research center for astronomy, concentrating approximately 25% of France's total astronomy and astrophysics workforce with around 750 researchers, engineers, technicians, and administrative staff. Its mission spans fundamental and applied research, higher education, and public knowledge dissemination across astrophysics, physics, engineering, and the metrology of time and space.

The institution's core technology portfolio includes state-of-the-art Nançay radio telescopes (including the Large Nançay Radiotelescope and NenuFAR), the Complexe Technologique pour le Spatial (CTS) at Meudon for nanosatellite assembly and testing, and co-development of major international instruments such as GRAVITY for the VLTI. It maintains the Meudon Spectroheliograph solar image archive dating to 1908 (accessible via BASS2000) and produces French legal time, ephemerides, and solar/cosmic-ray observations as government-mandated public services. Research outputs feed into peer-reviewed publications, the Virtual Observatory, and partnerships with ESA, ESO, SKA Observatory, and CNRS.

As a state-funded establishment and founding member of Université Paris Sciences et Lettres (PSL), the Observatoire de Paris is financed through public research funding rather than commercial sales. Its revenue model is effectively a recurring public appropriation supplemented by competitive grants and international mission contracts. Primary stakeholder segments include ~250 graduate and doctoral students annually, an international research community, teachers and educators, and the general public reached through MOOCs, site visits, traveling exhibitions, and digital resources such as the ÉclipSEOP eclipse app.

Name

Observatoire de Paris

Legal name

Observatoire de Paris-PSL

Website

https://observatoiredeparis.psl.eu

Company type

Private

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Observatoire de Paris is a French public research institution founded in 1667, operating three campuses (Paris, Meudon, Nançay) with ~750 staff to conduct astronomy, astrophysics, and time metrology research, train ~250 graduate students, and deliver public services including French legal time and ephemerides.

Ownership category

akta.pro rank

Product category

Astronomy and Astrophysics Research

NAICS

Space Research and Technology (9271), Scientific Research and Development Services (5417), National Security and International Affairs (9281)

SIC

International Affairs (9721), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Comprehensive Doctoral Research Universities (Multi-Disciplinary) (EDAHABAA)

akta.pro secondary industry

Research Computing & High-Performance Computing (HPC) User Support (EDALAMAK)

Keywords

• Astronomical research
• Astrophysics education
• Time metrology
• Radio astronomy
• Space instrumentation

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Infrastructure, Operations

Revenue model

1. Public Research Funding: State-funded public institution under PSL University receiving government funding for fundamental and applied research activities

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Observatoire de Paris - PSL is a French public research institution that conducts fundamental and applied research in astronomy, astrophysics, physics, engineering, and time metrology. It delivers higher education programs (Bachelor's, Master's, PhD, Graduate Program in Astrophysics) and provides public services such as the production of French legal time, ephemerides, and solar observations. The institution operates research infrastructure including state-of-the-art radio telescopes at Nançay, the Space Technology Complex (CTS) at Meudon, and a world-class astronomy library.

Product overview

Observatoire de Paris - PSL is a public research institution (not a product company) responsible for fundamental and applied research, higher education, and knowledge sharing in astronomy, astrophysics, and time metrology. Founded in 1667, it operates across three campuses (Paris, Meudon, Nançay) with approximately 750 researchers and staff. The institution offers a unified portfolio of educational programs (Bachelor's, Master's, PhD, Graduate Program in Astrophysics via PSL), research services (scientific databases including BASS2000, technical platforms, solar and cosmic ray monitoring), and public outreach services (mobile exhibitions, digital resources such as the ÉclipSEOP app, ephemerides, and French legal time production). Its offerings serve academic researchers, students, educators, and the general public.

Differentiator

Problem solved

Functional benefit

Products and services

• PSL Bachelor's Degree Undergraduate bachelor's degree program offered as part of PSL University, providing foundational training in sciences related to astronomy and astrophysics.
• Master in Space Science and Technology Graduate-level master's program in space science and technology offered by the Observatoire de Paris through PSL University.
• PhD Program Doctoral degree and professorial thesis (HDR) programs for advanced research training in astronomy, astrophysics, and related disciplines.
• Graduate Program Astrophysics (AstroParis) PSL graduate program in Astrophysics offering a complete cycle of higher education from Master's to Doctoral level, focusing on astrophysics and space science engineering.
• French Legal Time Official production and dissemination of French legal time, a state-mandated public service.
• Ephemerides and Calendars Public service providing ephemerides of the Sun, Moon and solar system bodies, calendars, and sunrise/sunset times.
• Library Collection in Astronomy and Astrophysics The Collection d'Excellence in Astronomy and Astrophysics, associated with the Bibliothèque Nationale de France, ranks among the finest astronomy-physics libraries in the world.
• Scientific Databases and Virtual Observatory Scientific databases including BASS2000, providing access to solar images from the Meudon Spectroheliograph since 1908, and Virtual Observatory resources.
• Mobile Exhibitions Travelling exhibitions available for loan, covering topics such as The Solar System, La lumière de l'Univers, Le Système solaire, Comètes, Gaia, Space weather, and Du Soleil à la Terre.
• ÉclipSEOP App Web application designed to help the general public prepare for the 12 August 2026 solar eclipse.
• Solar Observations Ongoing observation and monitoring of the Sun, supporting both research activities and public services.
• Cosmic Ray Monitoring Monitoring of cosmic rays as part of the institution's general utility services to society.
• Technical Platforms Technical platforms supporting advanced research in astronomy and astrophysics, including the Complexe Technologique pour le Spatial (CTS) for space experiments.

Quantifiable outcome

• 350+ years of continuous astronomical research excellence
• +1 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

14 partnerships are on record, tiered core and major.

• ESA_lab@PSLcoreStrategic or Co-development Partner · 23 October 2018Joint ESA-PSL laboratory created by protocol of collaboration for space research and technology development
• LNE (Laboratoire national de métrologie et d'essais)majorStrategic or Co-development Partner · 8 July 2018Co-organizer of CPEM 2018 conference on precision electromagnetic measurements; collaboration in metrology research
• CNES (Centre National d'Études Spatiales)coreStrategic or Co-development Partner · 25 June 2018Partner in Complexe Technologique pour le Spatial (CTS) development; collaboration on nanosatellite projects including PicSat
• PSL University (Paris Sciences et Lettres)coreStrategic or Co-development PartnerObservatoire de Paris is a founding member of PSL University, a comprehensive university bringing together elite French higher education and research institutions in Paris.
• CNRS (Centre National de la Recherche Scientifique)coreStrategic or Co-development PartnerPrimary research partner; joint laboratories including LESIA with CNRS/Sorbonne Université/Université Paris Diderot; major collaboration in astrophysics research
• ESA (European Space Agency)coreStrategic or Co-development PartnerStrategic space partnership including ESA_lab@PSL, contributions to ARIEL, JUICE, Solar Orbiter missions; memorandum of collaboration signed
• ESO (European Southern Observatory)coreTechnology or IntegrationCollaboration on VLT instruments including GRAVITY; observations using ESO telescopes in Chile; participation in ELT instrument development (MICADO, MOSAIC)
• SKA ObservatorycoreStrategic or Co-development PartnerFrance became full member of SKA Observatory; French astrophysics community rallying around world's largest radio observatory; Nançay instruments central to SKA
• Université Grenoble-AlpesmajorStrategic or Co-development PartnerResearch partner in IPAG; collaboration on GRAVITY instrument development and other astrophysics projects
• labex ESEPmajorStrategic or Co-development PartnerExcellence laboratory co-piloting space technology complex with master OSAE for training
• Bibliothèque Nationale de FrancemajorStrategic or Co-development PartnerAssociation for Collection d'Excellence in Astronomy and Astrophysics library; one of finest astronomy-physics libraries in the world
• Île-de-France RegionmajorStrategic or Co-development PartnerFunding partner for space technology complex (CTS) and regional research infrastructure
• Max Planck Institute for Extraterrestrial Physics (MPE)coreStrategic or Co-development PartnerLeading partner in GRAVITY consortium for VLTI instrument development; directed by MPE
• GRAVITY ConsortiumcoreStrategic or Co-development PartnerInternational collaboration including MPE, LESIA, IPAG, MPIA, University of Cologne, CENTRA, ESO for VLTI second-generation instrument

Scale indicators5 records

Recent moves9 records

Expansion highlights5 records

Direct peers

• CNRS / INSU: France's primary national scientific research center and primary research partner of Observatoire de Paris; jointly operates LESIA and other astrophysics units, making it the closest national counterpart in scope and mission.
• Max Planck Institute for Astronomy (MPIA): Leading German astronomy institute and core partner in the GRAVITY consortium with Observatoire de Paris; comparable in instrument development, doctoral training, and theoretical/observational research scope.
• Max Planck Institute for Extraterrestrial Physics (MPE): Director of the GRAVITY consortium that Observatoire de Paris participates in; directly comparable in instrument-building for ESO/VLTI and space-mission instrumentation.
• Institut d'Astrophysique de Paris (IAP): Sister French astrophysics laboratory also under PSL University; directly comparable in research scope, doctoral training, and public outreach mission.

Broad incumbents

• European Southern Observatory (ESO): Operates VLT, ELT and other flagship observatories that Observatoire de Paris uses and contributes instruments to (GRAVITY, MICADO, MOSAIC); broader mandate covering all European member-state astronomy.
• SKA Observatory (SKAO): Intergovernmental organization building the world's largest radio telescope, of which France (and Observatoire de Paris via Nançay) is now a full member; overlapping in radio astronomy and instrumentation.
• NASA Goddard Space Flight Center: U.S. counterpart operating space-based astronomy missions and major astrophysics instrumentation; directly comparable in mission contribution model with ESA missions like ARIEL and JUICE.
• Space Telescope Science Institute (STScI): Operates Hubble and James Webb science operations; comparable as a public research center running flagship space-astronomy missions and archival data services.
• Harvard–Smithsonian Center for Astrophysics: Large U.S. multi-institutional astrophysics center combining observational, theoretical and instrument work; closely comparable in scope (research + graduate training + instrumentation).
• CNES (Centre National d'Études Spatiales): French national space agency and CTS co-developer with Observatoire de Paris; comparable in coordinating national space instrumentation, though broader in launch/spacecraft scope.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/obs_paris
• Facebookfacebook.com/observatoiredeparis
• LinkedInlinkedin.com/company/observatoire-de-paris

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about Observatoire de Paris