Company

Reducing the sad experiences of the world.

Our company's vision is to "reduce the number of tragic experiences in the world," and our mission is to "maximize the capabilities of everyone involved in safety through the intelligence provided by computer science." We are working to develop solutions to reduce crime around the world.

We provide AI security optimization solutions that visualize risks in advance and help improve the efficiency of security operations using our crime prediction AI "CRIME NABI," which is based on our proprietary, highly accurate and high-speed crime prediction algorithm.

Company Profile

Company name

CEO

Singular Perturbations Inc.

Mami Kajita

Adress

102-0074　東京都千代田区九段南1-5-6 りそな九段ビル5F

Date of establishment

2017. 08. 03

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Headquarters: Tokyo Office

5F Resona Kudan Building,

1-5-6 Kudan Minami, Chiyoda-ku, Tokyo,

1020074, Japan

Branch Office: Brazil

Av. Paulista, 807 - Cj. 1922
Jardim Paulista - São Paulo - SP
CEP 01310-100

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CEO Biography

Profile

Singular Perturbations Inc.

CEO | Founder

Mami Kajita, PhD

Graduated from the University of Tokyo Graduate School (PhD), specializing in computational criminology, statistical physics, and theoretical physics. Engaged in research as a JSPS Postdoctoral Fellow (PD) at Osaka University and Nagoya University. Developed and sold an iOS app while living in Italy. Served as an executive officer at Tobira Systems before founding Singular Perturbations Inc. Enrolled at Chiba University at the age of 17 (the first woman to do so). Visiting researcher at the University of Tokyo Center for Spatial Information Science. MITOU Advanced PM.

Statistical physics, theoretical physics, nonlinear dynamics, glass transition, physics of frustrated systems, Computational criminology

Coarse-graining of stochastic process dynamics using singular perturbation method, analysis of spatiotemporal features

Research Gate

Members

Branch Office: Brazil | Singular Perturbations LA Ltda. CEO

Takamasa Kurachi

In 2004, at the age of 21, he moved to Brazil alone. He established and managed consulting, import/export, food and beverage, and manufacturing businesses in Brazil. In 2018, he began working on a business for the Brazilian police, and has been in his current position since 2023.

Singular Perturbations Inc. | VP of Sales

Tomoki Matsushita

He was Vice President and Head of Sales at Tobira Systems Co., Ltd., which operates a spam call and spam SMS filtering business, where he was responsible for management and sales strategies, and the company was listed on the First Section of the Stock Exchange in 2020. He has been in his current position since 2022.

Branch Office: Brazil | Singular Perturbations LA Ltda. VP of Government Sales

Henrique Kashihara

Born in Sao Paulo and raised in Saitama Prefecture. Worked in Japan for 22 years, mainly in the manufacturing and service industries. Returned to Brazil in 2018. Works in a wide range of roles, including consulting, interpretation/translation, and marketing. Focusing on research and marketing, he also has an advantage in JICA's support for small and medium-sized enterprises and project management. His motto is "Challenge and growth."

Chair Researcher (Concurrent) Associate Professor, Institute of Statistical Mathematics

Daisuke Murakami

Graduated from the Graduate School of the University of Tsukuba (Doctor of Engineering). Specializes in geographic information and statistics.
After serving as a Special Researcher at the National Institute for Environmental Studies, became an Assistant Professor at the Institute of Statistical Mathematics in 2017. Joined Singular Perturbations Inc. in 2018 (concurrent position). Specializes in statistical modeling of large-scale geospatial data. Developed the R packages spmoran and scgwr, and participated in the GWmodel development group. Also engaged in developing and publishing databases for future population and GDP scenarios.

Dean of the Faculty of Sociology, Toyo University

Prof. Masayuki Kiriu

After joining the Yamagata Prefectural Government, he served as a Psychological Analyst and Senior Researcher at the Yamagata Prefectural Police Headquarters Scientific Investigation Laboratory, and later held positions including Director of the Kansai International University Crime Prevention and Disaster Management Research Institute. Since 2014, he has been a Professor in the Department of Social Psychology, Faculty of Sociology, Toyo University. He serves as a National Director of the Japanese Association of Criminal Psychology and a Director of the Japanese Association of Applied Psychology.

We are hiring.

We have operated as a minimal, engineer-centric small team until now. We are currently actively recruiting not only for our product development department (ML Engineers, Application Engineers) but also for the business side (Growth, New Business Manager).

We warmly welcome applications from individuals who resonate with our mission to reduce crime globally—a cause of significant social importance—or who are interested in the challenge of developing new ventures. These ventures will leverage crime prediction technology, previously accessible only to law enforcement agencies, to introduce predictive analytics and optimization into the security business domain.

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