Oak Immigration Services

About Oak Immigration Services

Oak Immigration Services (オーク行政書士法人) is a licensed immigration and administrative procedures firm in Tokyo. It helps foreign nationals and the companies that employ them with every stage of Japanese residence status, from first entry to permanent residence. The firm is led by Ayako Smith, a licensed Gyosei-Shoshi (Administrative Scrivener, Reg. No. 18080673). All work is handled fully in English or Japanese, with one point of contact from first consultation to final decision.

What we handle

• Work and business visas: Certificates of Eligibility (COE), Engineer/Specialist in Humanities/International Services, Business Manager, Highly Skilled Professional, and intra-company transfers
• Extensions and changes of status: renewals, status changes, and permission to work outside your current status
• Permanent residence: eligibility assessment, document strategy, and full application preparation, updated for the October 2026 guideline and fee changes
• Entertainment visas: including large group applications for concerts, festivals, esports events, film and TV productions, and touring artists
• Business setup: KK and GK company incorporation, business licenses, and permits

How we work

We start with a clear assessment of your case and a fixed quote. Our professional fees are published on our website, and government fees are listed separately. We prepare and check every document, file with the Immigration Services Agency, and keep you updated until a decision is issued. Consultations are available in person near Meguro Station or remotely, so clients can start the process before arriving in Japan.

As Gyosei-Shoshi, we handle applications and procedures with immigration authorities. Matters that need court representation, such as appeals in litigation or deportation proceedings, are referred to qualified attorneys (bengoshi).

Office: MG Meguro Ekimae Bldg., 2-15-19 Kami-Osaki, Shinagawa-ku, Tokyo 141-0021 (near Meguro Station)
Hours: Monday–Friday, 9:00–19:00