SEIKA

SEIKA Inc.


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Company Overview

Company Name: Sumainoseika Co., Ltd.
Headquarters Address: 2F Nishikata Building, 1-8-7 Nishi-Shin-Koiwa, Katsushika-ku, Tokyo
President and CEO: Lim Nohyouck
Established: June 24, 2010
Business Activities: Real estate leasing and sales brokerage, company housing mediation and agency business,
Leo Palace 21 franchise business, monthly real estate business, real estate management business,
Registration support institution and visa application agency business, support work for ALT-related businesses
Employees: 54
Number of Stores: 15 nationwide
Main Trading Partner: Leo Palace 21 Co., Ltd.
Main Banks: Mitsui Sumitomo Bank | Mitsubishi UFJ Bank
License Number: Minister of Land, Infrastructure, Transport and Tourism (3) No. 8091

🏢 Leo Palace 21 Franchise Division

Shinkoiwa 2F Nishikata Building, 1-8-7 Nishi-Shin-Koiwa, Katsushika-ku, Tokyo
Aoto 2F Kurita Store, 3-35-12 Aoto, Katsushika-ku, Tokyo
Motoyawata 1F Regina Prima, 3-4-8 Yawata, Ichikawa, Chiba
Tsudanuma 4F Tsuchiya Real Estate Tsudanuma Building, 2-13-12 Maehara Nishi, Funabashi, Chiba
Yotsukaido 301 Wakou Building, 2003-21 Kashibata, Yotsukaido, Chiba
Totsuka Ekimae 201 el sur, 3003-1 Yoshida-cho, Totsuka-ku, Yokohama, Kanagawa
Kashii Ekimae 1A Breath Kashii Ekimae, 1-15-4 Kashii Ekimae, Higashi-ku, Fukuoka City, Fukuoka
Noda Hanshin 101 Toa Building, 3-27-14 Yoshino, Fukushima-ku, Osaka City, Osaka

🏢 Sumainoseika Business Division

Shinjuku 106 Room, Win Yotsuya, 2-18 Jumyocho, Shinjuku-ku, Tokyo
Okinawa 2F Unufa Building, 1-12-15 Izumizaki, Naha City, Okinawa
Kyoto 2F MILLY Karasuma Gojo, 383-6 Osaka-cho, Shimogyo-ku, Kyoto City, Kyoto
Nagoya 1F Nagoya Kodama Building, 4-2-5 Meieki, Nakamura-ku, Nagoya City, Aichi
Hokkaido 602 Room, Frontier Odori Nishi, 19-2-1 Odori Nishi, Chuo-ku, Sapporo City, Hokkaido
Saitama 2F Tanaka Building, 2-36-16 Minamiurawa, Minami-ku, Saitama City, Saitama
Hiroshima 3F Dai 5 Heikatsu Building, 10-31 Matsubara-cho, Minami-ku, Hiroshima City, Hiroshima

📅 Company History

  • September 2010

    Opened Shinjuku store

  • February 2011

    Opened Tsudanuma store

  • June 2011

    Opened Aoto store

  • April 2012

    Opened Yotsuya store

  • April 2017

    First self-owned brand store opened in Honhachiman

  • July 2017

    Opened Totsuka Ekimae store

  • December 2017

    Transitioned Honhachiman store to the Leopalace 21 Franchise Division

  • April 2018

    Sumainoseika Shinjuku store

  • June 2019

    Sumainoseika Osaka store

  • April 2022

    Sumainoseika Okinawa 4 stores

  • September 2022

    Sumainoseika Minamiurawa store

  • October 2022

    Sumainoseika Hokkaido store

  • November 2022

    Sumainoseika Nagoya store

  • December 2022

    Sumainoseika Hiroshima store

  • November 2023

    Registration approval of registration support organization

Japan Map

📅 Sumainoseika (About our own brand)

Business Description: Based on the experience gained from our franchise business, we launched our own brand in April 2017, aiming to diversify our business into real estate brokerage and management services.
We have many foreign employees, enabling us to provide support in English, Nepali, Korean, Chinese, Russian, Turkish, French, and Tagalog.
We also flexibly support various procedures related to moving in.
We also offer services such as partnering with vendors to install used home appliances.