Construction, mobility, real estate and energy accelerator: applications for the SEED programme are now open!

Leonard invites start-ups in Contech, Proptech, mobility and energy to apply for the SEED programme in 2023. Start-ups have until the end of September 2022 to apply.

Funding, support and coaching up to first fund raising

Leonard’s SEED programme is a 6-month funding and mentoring programme designed for seed and pre-seed start-ups that propose innovative solutions in four major areas that address the challenges of transforming cities and infrastructures: construction/contech, mobility, real estate/proptech and energy.

A financial contribution of €30,000, certified entrepreneurial training delivered by the Stanford Center for Professional Development, specialized workshops, coaching and mentoring sessions with VINCI experts, contacts with our network of investors (Business Angels and VCs) in France and abroad: everything is done so as to challenge, refine and assess the value proposition of the projects supported and to enable the start-ups to prepare for their first fund-raising. The start-ups end their intensive 6-month course with a Demo Day open to investors and VINCI Group decision-makers.

In order to enhance the value of this support – Leonard subscribes ‘BSA Air’ share subsription warrants with the selected start-ups.

Leonard has been approved as a prescriber for the French Tech Seed fund, which allows start-ups raising their first seed capital to benefit from a leverage mechanism in the form of convertible bonds (up to two euros of matching funds for each euro raised).

Leonard is also a partner of French Tech Tremplin, which supports founders from under-represented backgrounds in the French start-up ecosystem in order to promote diversity and equal opportunities.

Submit your application

Hosting at Leonard:Paris

The SEED program can be completed entirely remotely, but start-ups can choose to be hosted at Leonard:Paris, a unique meeting and inspiration place in the heart of the 12th arrondissement of Paris, just a stone’s throw from the Gare de Lyon.

Applications open until the end of September 2022

Applications for the SEED 2022 class are open until the 30 September 2022, exclusively online.


October 1, 2022: Closing of applications

November 2022: Selection committee and announcement of selected start-ups

January 2023: Kick-off of the program (duration 6 months)

Submit your application

Alumni from the SEED program

Cohort 2022

Aeternum (Switzerland) offers circular buildings as reusable, re-adaptable, carbon-neutral products in the form of future-proof assets which maintain value within components for multiple lifecycles.

Akanthas (France) is an AI-based solution for haulers and industrial sites which uses computer vision to monitor and optimize waste management in real time.

Arsenio (France) is a digital bootcamp and educational platform to learn digital construction and circular economy.

Auxilia (France) is a SaaS for airports, sensitive locations and international trade that uses AI to automatically detect weapons and explosives on X-ray images of luggage and goods.

Fostr (France) is an intelligent platform automating the administrative and financial processes of project managers in real estate, enabling a more productive and efficient daily management of real estate projects).

Machine 26 (Germany) is a smart equipment software that helps construction fleet owners to manage and re-sell their machines.

Oculai (Germany) collects data to track progress, resource utilization and logistics on construction sites using computer vision.

Oke Charge (France) is a shared universal peer to peer electric recharging service, open to all, and for any type of electric vehicle.

Other success stories

Caeli Energie specialises in the manufacture of energy efficient, low carbon footprint air conditioners.

Neoratech develops connected personal protective equipment for technicians working on electrical networks.

Rockease is an online platform to find the best offer, order and manage the delivery of aggregates on site – a start-up awarded the “Solar Impulse Efficient Solution” label.

Build2B is the first B2B platform for freelancers in the construction industry that allows contractors to quickly find the best freelancers by providing an easy-to-use, cost-effective and reliable solution.

EP Tender is a “Battery as a Service” solution that gives drivers peace of mind by expanding the range of affordable electric vehicles while providing grid services for energy storage.

Inergeen develops innovative and sustainable modular building solutions for the extension of living spaces (such as shared workspaces, home and office extensions).


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