
ZeLo
“Reforming legal services to contribute to the creation of laws and provide a legal platform for myriad economic activities.”
Masataka Ogasawara
Nozomu Tsunoda
59 Attorneys admitted in Japan
1 Attorney admitted in Indonesia(not registered in Japan)
3 Patent Attorneys
2 Judicial Scriveners
4 Labor/Social Security Attorneys
3 Tax Counsels
+81-3-5859-0310
+81-3-5859-0281
Weekdays 10:00 AM – 6:00 PM (JST)
10th Floor, Toyosu Foresia,
3-2-24, Toyosu, Koto-ku, Tokyo, 135-0061
アクセス
Mar.2017
Attorneys Masataka Ogasawara and Nozomu Tsunoda founded ZeLo in Nihombashi‑Kayabachō (Chūō‑ku, Tokyo) together with LegalForce Inc. (now LegalOn Technologies Inc.).
Sep.2017
With attorney Kyohei Yanagida joining, the firm launched its Startup Finance practice.
Apr .2018
Relocated the office to Tsukiji (Chūō‑ku, Tokyo).
Jul.2018
With attorney Koichi Kitada joining, the firm opened its M&A practice.
Nov.2018
Published the firm’s first book, Feasibility Study of Blockchain Business and ICO (Shoji Houmu).
Jul.2019
Moved the office to Hibiya (Chiyoda‑ku, Tokyo).
Apr .2020
Led by attorney Masayuki Matsunaga, launched Legal Process Outsourcing, a tech‑enabled legal counsel service.
Aug.2020
Established group company ZeLo FAS Co., Ltd. (Representative Director: certified public accountant & tax accountant, Tatsuya Fukano).
Sep.2020
Won “Rising Law Firm of the Year” (sole recipient) at the ALB Japan Law Awards 2020.
Dec.2020
Established a Public Affairs practice, led by attorneys Kohei Kanzawa, Chika Minami, and Daiki Matsuda.
Jan.2021
Earned high rankings for Dispute Resolution in The Legal 500 Asia Pacific 2021.
Mar.2021
Published Strategy and Practice of Rule‑Making (Shoji Houmu) spearheaded by the Public Affairs practice.
May.2021
Relocated to Toyosu Front building (Kōtō‑ku, Tokyo).
May.2021
Published Japan in Space – National Architecture, Policy, Legislation and Business in the 21st Century (Eleven International Publishing) led by the Cross‑Border practice.
Sep.2021
Won “Rising Law Firm of the Year” at the ALB Japan Law Awards 2021, sole recipient for the second consecutive year.
Jan.2022
Received high rankings for Dispute Resolution (second year) and Intellectual Property (first year) in The Legal 500 Asia Pacific 2022.
Apr.2022
ZeLo lawyers ranked in The Best Lawyers in Japan 2023.
May.2022
Achieved strong rankings for Intellectual Property in ALB Asia IP Rankings 2022.
Jun.2022
Intellectual Property team selected as a Top 6 Finalist for “Japan Intellectual Property Law Firm of the Year” at the ALB Japan Law Awards 2022.
Jul.2022
Featured in Asian Legal Business Japan (June 2022) “ALB JAPAN FIRMS TO WATCH – Top 10 Firms to Watch”.
Oct.2022
Established an Employment & Social Security practice with attorney Toyohiro Fujita joining the firm.
Dec.2022
Moved the office to Toyosu Foresia building (Kōtō‑ku, Tokyo).
Jan.2023
In The Legal 500 Asia Pacific 2023, earned high rankings in Dispute Resolution (3rd year), Intellectual Property (2nd year), M&A (2nd year), and Real Estate & Construction (first time).
Apr.2023
Strengthened IPO support with attorney Yusuke Ito joining.
Apr.2023
ZeLo lawyers ranked in The Best Lawyers in Japan 2024.
May.2023
Intellectual Property team again highly ranked in ALB Asia IP Rankings 2023.
Jun.2023
ZeLo lawyers selected as Top 5 Finalists at the ALB Japan Law Awards 2023.
Nov.2023
Named in Asian Legal Business (Nov 2023) list of “ALB Asia Fastest Growing Firms 2023.”
Jan.2024
Received strong evaluations in The Legal 500 Asia Pacific 2024.
May.2024
ZeLo lawyers ranked in The Best Lawyers in Japan 2025.
Jun.2024
Managing Partner Masataka Ogasawara received the “Managing Partner of the Year (Law Firm)” award at the ALB Japan Law Awards 2024.
Dec.2024
The firm earned high rankings in the Chambers Asia‑Pacific Guide 2025.
Jan.2025
The firm received strong evaluations in The Legal 500 Asia Pacific 2025.
Apr.2025
ZeLo lawyers ranked in The Best Lawyers in Japan 2026.
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