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PlayNext Lab Inc.

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Japanese DX and software development company building LINE-based digital government services and custom business applications.

Last updated September 27, 2026

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Overview

PlayNext Lab Inc. (プレイネクストラボ株式会社) is a Japanese technology company founded in January 2016 and headquartered in Shinagawa, Tokyo, with a second office in Fukuoka. The company positions itself as a "DX creation company" (DX創出カンパニー) under the vision "Create the future with technology and diversity." Its mission is to connect global engineering talent to Japan and to create entertainment powered by technology. PlayNext Lab operates two main business lines. The first is DX development support: agile, full-stack development of web and mobile services for clients in telecommunications, finance, internet services, real estate, and government. The second is its own product, "Smart Public Lab" (スマート公共ラボ), a LINE-based digital counter for local governments that lets residents handle administrative procedures through the LINE messaging app. The company also offers lab-style development teams, cloud infrastructure construction and operations, and AI concierge services for municipalities. As of the company's own reporting, it has delivered 175 projects for municipal governments and 629 projects for corporate clients. Notable clients and partners include LINE Yahoo Corporation, DMM.com, Mobilus Corporation, Pasona JOBHUB, Revamp Corporation, Active Channel Corporation, and Mecom Corporation. Its capital is 70 million yen and it employs about 50 people. It holds a paid employment placement license and a worker dispatch license, and is certified under the PrivacyMark system. PlayNext Lab's flagship public-sector offering, Smart Public Lab, has been adopted by municipalities such as Hiraado Town in Nagasaki Prefecture, Munakata City in Fukuoka Prefecture, Shimoda City in Shizuoka Prefecture, and Hirao Town in Yamaguchi Prefecture. The company has also developed LINE-based medical appointment systems for Fukuoka Children's Hospital and Kyushu Medical Center, and a smart-lock-compatible facility reservation system. Its corporate work includes rebuilding Active Channel's crowdbasket service, developing Toyotsu Machinery's Jukies construction equipment rental platform, and creating the Sound Supple healing music app for Dera Corporation. PlayNext Lab remains a private, independent company. It continues to pursue growth of its own services while acting as a behind-the-scenes partner for client digital transformation.

History

PlayNext Lab Inc. was established in January 2016 in Japan. From its founding, the company built its development capability around a global engineering team, working on smartphone games, HR TECH services, chatbots, and system development. It describes itself as a young company that has served both as a developer and operator of its own services and as a behind-the-scenes supporting player for a wide range of client needs. By the early 2020s, PlayNext Lab had shifted much of its public-facing identity toward digital transformation (DX). It developed Smart Public Lab, a LINE-based digital counter for local governments, and began rolling it out to municipalities across Japan. The company also built LINE-based medical appointment systems for Fukuoka Children's Hospital and Kyushu Medical Center, and a smart-lock-compatible facility reservation system for local governments. As of its corporate profile, PlayNext Lab is headquartered in Shinagawa, Tokyo, with a Fukuoka office. It has capital of 70 million yen and about 50 employees. It holds a paid employment placement license (13-ユ-307750) and a worker dispatch license (派13-306485), and is certified under the PrivacyMark system (registration number 第21004705(01)号). Its representative director and president is Takumi Kashiwa. The company reports 175 municipal projects and 629 corporate projects. Its client and partner list includes LINE Yahoo Corporation, DMM.com, Mobilus Corporation, Pasona JOBHUB, Revamp Corporation, Active Channel Corporation, and Mecom Corporation. It is affiliated with Eltes Corporation and SRIA Lab Corporation. PlayNext Lab continues to operate as a private company, pursuing growth of its own services while supporting client DX as a "DX creation company."

  • PlayNext Lab Inc. founded in Japan.

  • Introduction case report published for Shimoda City, Shizuoka Prefecture, using LINE for electronic applications.

  • Development case study for Active Channel's crowdbasket published; introduction case report for Hirao Town, Yamaguchi Prefecture published.

Products and positioning

DX creation company providing one-stop technology, design, and business services from agile small starts to large-scale development.

  • Smart Public Lab

    LINE-based digital counter for local governments, enabling residents to complete administrative procedures via LINE.

  • DX development support

    Agile full-stack development from small starts to large-scale projects, covering planning, development, design, and operations.

  • Development lab

    Flexible lab-style teams providing necessary resources from planning to release.

  • Cloud infrastructure

    Construction, operation, and migration support for cloud environments.

  • AI concierge for municipalities

    AI service using ChatGPT and RAG search to automate inquiries for local governments.

Sources4 sources

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