Z-kai

Zoshinkai Holdings Inc. serves as the parent company of the Z-kai group, which encompasses a variety of educational services and products. Z-kai Inc. offers business correspondence courses, operates a network of cram schools primarily in the Tokyo metropolitan area and Kansai region, and engages in publishing and mock test services. Z-kai CA Inc. focuses on educational offerings for university students and professionals. IgsZ Ltd. assists junior and senior high school students in preparing for admission to prestigious schools and universities both within Japan and internationally, fostering the development of future global leaders. ZKAI Learning Technology Inc. leverages information and communication technology to provide high-quality education services. Zenis Inc. operates cram schools in Shizuoka and Tokyo with a personalized teaching approach. Additionally, the 21st Century Learning Research Institute conducts research on skills and academic ability, aligning with contemporary educational needs while offering assessment services for students of all ages. ZE Holdings Inc. manages business operations and related activities within the group.

Takaaki Fujii

CEO

12 past transactions

Manabie

Series B in 2025
Manabie International Ltd., established in 2019 and headquartered in Singapore, specializes in online and offline education services for students from elementary to high school levels. The company offers a learning software suite, Manabie Basic and Manabie Prime, which includes online classes, mock exams, and live tutoring. Additionally, Manabie Hub provides offline education services, such as one-on-one personal coaching. Manabie's mission is to innovate learning by integrating online and offline resources, providing students with high-quality materials, personalized coaching, and efficient learning environments.

Study Plus

Series D in 2022
Study Plus is an educational application that focuses on enhancing collaborative studying among students. It operates as a learning management platform, helping users adopt a systematic approach to their studies. The platform enables students to record their study times, subjects, and content, while also allowing them to share this information through social networks. By facilitating organization and collaboration, Study Plus aims to support students in completing their syllabus efficiently and effectively.

Study Plus

Series C in 2020
Study Plus is an educational application that focuses on enhancing collaborative studying among students. It operates as a learning management platform, helping users adopt a systematic approach to their studies. The platform enables students to record their study times, subjects, and content, while also allowing them to share this information through social networks. By facilitating organization and collaboration, Study Plus aims to support students in completing their syllabus efficiently and effectively.

Arcterus

Series C in 2018
Arcterus Co., Ltd. is a company based in Setagaya-Ku, Japan, founded in 2010. It specializes in developing a digital notebook application designed for students to upload and share class notes, enhancing their learning experience. The application also includes assessment tools tailored for both teachers and students, facilitating a more interactive educational environment. Additionally, Arcterus operates a tutoring center, further supporting students in their academic pursuits. The company's approach incorporates adaptive learning techniques to optimize the educational experience based on individual learning styles, leveraging technology and big data to provide personalized guidance and support.

Aoi.co

Acquisition in 2017
Aoi Co. is a Tokyo-based company that provides "Aoi Zemi," a free online lecture service designed for junior high and middle school students. The platform has successfully attracted over 3,000 users and boasts an impressive entrance exam passing rate of 86.3% for students aiming for their preferred universities. Aoi Co. is focused on enhancing its system development capabilities and plans to launch a learning state monitoring app for parents in September.

Arcterus

Series B in 2016
Arcterus Co., Ltd. is a company based in Setagaya-Ku, Japan, founded in 2010. It specializes in developing a digital notebook application designed for students to upload and share class notes, enhancing their learning experience. The application also includes assessment tools tailored for both teachers and students, facilitating a more interactive educational environment. Additionally, Arcterus operates a tutoring center, further supporting students in their academic pursuits. The company's approach incorporates adaptive learning techniques to optimize the educational experience based on individual learning styles, leveraging technology and big data to provide personalized guidance and support.

mana.bo

Venture Round in 2016
Mana.bo, the company providing real-time tutoring help via a virtual whiteboard, Mana.bo has found traction in Japan by offering tutoring services in a manner more tailored to student needs. When a user has a question about a particularly difficult problem, he or she can message a Mana.bo tutor. When the tutors are available, they will set up a voice or text conversation and explain the key to the problem while demonstrating on the digital whiteboard.

Make School

Seed Round in 2016
Make School Inc. is an educational institution based in San Francisco, California, that offers both in-person courses and online tutorials focused on product development and technology. Founded in 2011, the organization provides a higher education degree program designed to bridge the gap between education and employment for high school graduates. Its curriculum covers essential areas such as computer science theory, application development, web development, open source software, networking, and communication skills. By partnering with established universities, Make School delivers instructional, curricular, and admissions services, ensuring that its educational offerings remain relevant to the modern economy and accessible to students from diverse backgrounds. This approach enables students to effectively prepare for careers as software developers or startup founders.

RareJob

Post in 2016
RareJob is a Japan-based online platform specializing in English language learning services for individuals, corporations, and educational institutions. Operating from Shibuya, the company focuses on delivering tailored educational solutions that meet diverse client needs. Its offerings include personalized lessons and comprehensive support aimed at enhancing English proficiency. RareJob is dedicated to improving communication skills through an accessible and flexible online learning environment.

Edmodo

Venture Round in 2015
Edmodo, Inc. is an online education platform founded in 2008 and headquartered in San Mateo, California. The platform serves as a global education network, enabling educators to connect and collaborate with students, parents, and fellow teachers. With over 77 million users across approximately 550,000 schools worldwide, Edmodo prioritizes the privacy and security of its users while providing a dynamic environment for resource sharing and communication. It offers various tools that support school leaders in analyzing educational data, facilitating professional development, and enhancing learning outcomes through formative assessments. Additionally, Edmodo features capabilities for posting classroom materials, sharing multimedia resources, and accessing academic information such as homework and grades, thereby fostering a collaborative learning community. As of May 2018, Edmodo operates as a subsidiary of Best Assistant Education Online Limited.
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