Go Beyond the Risk
with Time Machine

About us

Time Machine Underwriters is the first Managing General Agency (MGA) specialized in Warranty & Indemnity insurance in Japan.


We provide underwriting services on behalf of Mitsui Sumitomo Insurance Company as a MGA.


表明保証保険の実務(Practice of W&I Insurance) ―M&Aにおける新しいリスクマネジメント手法

Practice of W&I Insurance

Author: Kosuke Inada, Kenichi Ko
Publication: 19 November 2020


  • 5/13/2022

    We’re delighted to announce that Toshifumi Kajiwara has joined us  as our new underwriter. Toshi has lots of experience in M&A finance and M&A at Clifford Chance (Tokyo) and LINE corporation. Look forward to working with you soon!

  • 2/9/2022

    Our office has moved to a new place. Please drop in when you come nearby.

    【New address】THE MODULE roppongi 312, Roppongi 7-21-24, Minato-ku, Tokyo 106-0032

  • 9/15/2021

    The article by Kosuke Inada, “Legal Check! Risk Management with Legal and Insurance for Solar Power Generation Business II”, was published in the 2021 Autumn issue of the Environmental Business.