Who is behind Ledger?

Could you elaborate on the individuals and entities behind Ledger? I'm curious to understand the origins and background of this prominent cryptocurrency hardware wallet manufacturer. Who are the key founders and what was their motivation to enter this industry? I'd also like to know if there are any major investors or partnerships that have influenced Ledger's growth and development. Understanding the people and organizations behind the brand could provide valuable insights into the company's values, strategy, and future prospects.