Exhibit

We are aware that our report dated August 4, 2017 on our review of interim financial information of Arch Capital Group Ltd. and its subsidiaries (the “Company”) for the three-month and six-month periods ended June 30, 2017 and June 30, 2016 and included in the Company's quarterly report on Form 10-Q for the quarter ended June 30, 2017 is incorporated by reference in the Registration Statement on Form S-3 (Registration No. 333-202440, Registration No. 333-202440-01 and Registration No. 333-202440-02) and in the Registration Statements on Forms S-8 (Registration No. 333-99974, Registration No. 333-86145, Registration No. 333-82772, Registration No. 333-211193, Registration No. 333-72182, Registration No. 333-98971, Registration No. 333-124422, Registration No. 333-142835, Registration No. 333-181308, and Registration No. 333-203993).