About us
A Blois company since 1961
Three generations of the Thiercelin family, a team of trained technicians and one idea: staying as close as possible to our customers' needs.
A family business
BSAI was founded in Blois in 1961 as Blois Diesel. Maurice Thiercelin took it over in 1967, and it became BSAI in 1970. Pierre Thiercelin took over as head of the company in 1976, joined by Michèle Thiercelin in 1988 and Jérémie Thiercelin in 1997.
Our strength is our team of technicians: they know the machines they install, and they come back to service them.
Our history
- 1961
Mr Héchard founds Blois Diesel, specialising in diesel vehicle repair.
- 1967
The company is taken over by Maurice Thiercelin.
- 1970
The company becomes BSAI, Blois Spécialités Auto Industrie, in the northern industrial area of Blois: trading in car parts and capital equipment.
- 1976
Pierre Thiercelin takes over as head of the company.
- 1987
We start selling mobile telephony.
- 1988
Michèle Thiercelin joins the company.
- 1997
Jérémie Thiercelin joins the company.
- 1998
First recordings of our customers' air consumption.
- 2007
Mobil Office award and launch of our GEOPLUS fleet tracking solution.
- 2008
Installation for Eurocopter in Brisbane, Australia.
- 2010
Equipment for the Quickstep factory in Sydney, Australia.
- 2015
Compressor installation at the Paris Mint.
- 2019
Store renovation, new logo and alcohol interlock approval.
- 2020
Work for the National Library of France.
Our purchasing groups
BSAI is a member of the Dompro and Groupe Alliance Automotive purchasing groups.
They trust us
Manufacturers, local authorities, hauliers and tradespeople, in Loir-et-Cher and beyond.
- Eurocopter
- Paris Mint
- National Library of France
- Caillau
- Keolis
- Agglopolys
- Saint-Gobain
- Scania
- Procter & Gamble
- Orangina
- Sisley
- H.B. Fuller
- Innothera
- Dalkia
- Idex
- Cofely
- Adecco
- Aérophile
- Phinia
- Transmanut
Press coverage
A project, a breakdown, a question?
Our technicians will answer and come out quickly.