noun
proxy application company
A company that submits applications on behalf of clients, often for official procedures, permits, or registrations.
ビザの手続きは代理申請会社に依頼した。
I entrusted the visa procedures to a proxy application company.
代理申請 is the act of proxy application itself, while 代理申請会社 refers to the company that performs it.
Compound of 代理 (proxy) + 申請 (application) + 会社 (company).