What Pluszero does

Pluszero is a Tokyo-based AI technology company founded in July 2018 and listed on the Tokyo Stock Exchange Growth Market (ticker 5132) since October 2022. The company builds enterprise AI solutions and standardized SaaS products on top of its proprietary AEI (Artificial Elastic Intelligence) framework, which combines natural language processing with a semantic representation layer (PSF Data, N4 format) and a personalized summarization engine to enable vocabulary-adaptive communication and task execution within constrained domains. Core products include the AI Tutor Zero educational platform (developed jointly with Keirinkan), the miraio AI call center operator (co-developed with Upsell Technologies), Brain Plus for Sales, Shepherd HR, and OCR's+; the company has also announced AI Charmy, a consumer IP-licensed plush toy with subscription conversation service, in partnership with Reck for December 2026 launch.

The company operates three revenue streams: custom AI development and consulting (professional services, including NLP, computer vision, and optimization algorithms), subscription SaaS products, and custom hardware/IoT development. Its go-to-market is enterprise-focused, targeting large Japanese corporations in manufacturing, finance, education, call center operations, and public-sector-adjacent verticals, with distribution primarily through direct sales supplemented by partner ecosystems such as Ubiquitous AI's HEXAGON platform. Named customer logos include Trustbank (Furusato Choice search), Extech (foreign currency exchange machines), Nakanishi Seisakusho (school meal logistics), Furuno Electric (maritime AI image analysis), Tokai Tokyo Securities (call center AI), Minebea Mitsumi, Kajima, and Keirinkan.

Organizationally, Pluszero employs approximately 134 people (112 full-time) as of January 2026, with about 30% affiliated with Tokyo University, and operates from a Setagaya, Tokyo headquarters. Leadership is anchored by founder Yoshiyuki Ojiro (Chairman/CEO) and Ryota Mori (President/COO), with technical leadership under Executive Vice President Motoki Nagata (Doctor of Informatics). The company holds a registered patent on its Virtual Staffing technology and is ISO/IEC 27001:2022 certified.

Name

Pluszero

Legal name

株式会社pluszero

Website

https://plus-zero.co.jp

Company type

Public

Founded year

2018

Operating status

Operating

Headcount range

101–250 employees

Short description

Pluszero is a Tokyo-based AI company that builds custom enterprise AI solutions and SaaS products on its proprietary AEI language technology, serving large Japanese corporations across education, manufacturing, finance, and call center operations.

Ownership category

akta.pro rank

Product category

Enterprise AI Software

NAICS

Custom Computer Programming Services (541511), Computer Systems Design Services (541512), Other Computer Related Services (541519), Computer Systems Design and Related Services (54151)

SIC

Services-Computer Programming Services (7371), Services-Computer Integrated Systems Design (7373), Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

AI/ML Engineering & Model Development Services (BPAEAHAF)

akta.pro secondary industries

AI Application Enablement Platforms (Copilot/Agent Frameworks, SDKs) (HDAEANAJ), AI & Automation in Customer Service (Chatbots, Agent Assist) (EDABACAO), Enterprise Foundation Model Integration & APIs (Connectors, Governance, Deployment) (HDAAACAO)

Keywords

• Enterprise AI development
• Natural language processing
• AI SaaS products
• Intelligent document processing
• Optimization algorithms

Headquarters

HQ city

Setagaya

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. AI Development and Consulting Services: Custom AI development and consulting services for enterprise clients. Pluszero provides end-to-end solutions from upstream consulting through system development and maintenance, including specialized services in NLP, image/video processing, and optimization algorithms.
2. SaaS Products: Subscription-based AI software products including AI Tutor Zero, Brain Plus for Sales, Shepherd HR (job posting check automation), miraio (AI operator), and other task-specific services.
3. Hardware Development: Custom hardware development including IoT systems. Notable project with Extech on foreign currency exchange machines combining hardware design with AI-powered rate optimization.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Pluszero provides custom AI development services and subscription-based AI software products for Japanese enterprises, built around its proprietary AEI (Artificial Elastic Intelligence) technology for natural language understanding. Core offerings include end-to-end AI consulting and development from requirements definition through operation, plus productized SaaS solutions such as the miraio AI call-center operator, AI Tutor Zero educational app, Brain Plus for Sales, Shepherd HR compliance SaaS, and OCR's+ document processing. The company also delivers specialized NLP, image analysis, optimization algorithms, and hardware-integrated AI solutions across industries including education, finance, manufacturing, and maritime.

Product overview

Pluszero offers a portfolio of AI-powered products and services centered on its proprietary AEI (Artificial Elastic Intelligence) technology. The core offering includes enterprise solutions like AI operator miraio for call centers, educational tools like AI Tutor Zero and Math × Pass for personalized learning, and specialized services including job posting automation (Shepherd HR), document processing (OCR's+), and anonymous voting platforms. The AEI technology serves as the foundational AI engine powering applications from natural language processing to autonomous agents, with services ranging from task-specific offerings (chatbots, CRM optimization) to research support and custom AI development.

Differentiator

Problem solved

Functional benefit

Products and services

• AEI (Artificial Elastic Intelligence) Proprietary AI technology framework enabling human-like natural language understanding and task execution within specific domains, serving as the foundation for Pluszero's productized solutions. Targeted at enterprise clients seeking deeper language comprehension than standard deep learning approaches.
• AI Operator miraio (AIオペレーター miraio) AI-powered autonomous call center operator that handles customer calls without human intervention, combining LLM with Pluszero's proprietary AEI for reliable, human-like phone conversations. Achieves zero abandoned calls in consumer-facing call centers. Targeted at financial services and other call center operators.
• AI Tutor Zero (AIチューター・ゼロ) AI-powered personalized learning app that analyzes student errors in textbooks using OCR and three AI engines, identifies root causes, and recommends problems from related topics to address specific learning gaps. Developed jointly with Shinko Publishers Keirinkan for mathematics learning.
• Math × Pass University entrance exam preparation service built on the AI Tutor Zero platform, providing personalized math study support for high school students preparing for university entrance exams.
• Brain Plus for Sales AI-powered sales training and simulation tool for inside sales teams that helps new employees become productive faster by automating proposal and communication processes. Reported to double new employee order acceptance within one month of assignment.
• Shepherd HR (シェパードHR) SaaS platform for automated job posting review and compliance checking, ensuring employment advertisements meet legal and company standards. Targeted at HR departments and recruiting firms.
• OCR's+

Quantifiable outcome

• Delivery route optimization achieved 'equal to or better than human' accuracy in shorter time
• +3 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability12 records

Feature9 records

Partnerships

15 partnerships are on record, tiered core, major and minor.

• レック (Reck)coreStrategic or Co-development Partner · 18 June 2026Partnership to launch AI Charmy - a hybrid product combining physical AI plush toys with subscription-based AI conversation service for IP characters. Scheduled for December 2026 launch with plans for global expansion through multiple sales channels and multilingual support.
• 新興出版社啓林館 (Shinko Publishers Keirinkan)coreStrategic or Co-development PartnerJoint development of AI Tutor Zero - digital teaching materials linked to textbooks for personalized learning. Also developed Math x Pass for university entrance exam preparation.
• アップセルテクノロジィーズ (Upsell Technologies)coreStrategic or Co-development PartnerCapital and business alliance for AI operator and Digital Human development. Combining Pluszero's AEI technology with Upsell Technologies' voice AI and call center expertise. Jointly developed 'miraio' AI operator.
• トラストバンク (Trustbank)majorTechnology or IntegrationSearch algorithm optimization for Furusato Choice, Japan's leading regional donation platform. Pluszero provided mathematical optimization and NLP technologies.
• エクステック (Extech)majorTechnology or IntegrationDevelopment of AI-powered foreign currency exchange machines with automated rate setting optimization. Combined hardware design with AI for IoT-connected machines.
• アビスト (Abist)coreStrategic or Co-development PartnerExpanded business and capital alliance for AEI technology promotion. Combined Pluszero's NLP/AI with Abist's 3D CAD technology for manufacturing quality improvement. Also worked on automated vehicle authentication using AI and OCR.
• 中西製作所 (Nakanishi Seisakusho)majorTechnology or IntegrationAI-powered delivery route optimization and container loading planning for school meal center operations. Applied optimization algorithms to complex logistics challenges.
• 三井物産ケミカル (Mitsui & Co. Chemicals)majorStrategic or Co-development PartnerDX service provision and materials informatics collaboration. Three-party partnership with EAGLYS for secure data utilization in chemical materials development.
• EAGLYSmajorTechnology or IntegrationSecure data utilization technology partnership in materials informatics project with Mitsui & Co. Chemicals.
• 伊藤忠プランテック (Itochu Planttech)majorStrategic or Co-development PartnerParticipation in AI utilization project for electrical safety field with Hokuriku Electrical Safety Association.
• ファーストパートナーズ・グループ (First Partners Group)minorStrategic or Co-development PartnerAI fund development and meeting minutes automation implementation, plus M&A sales Brain Plus for Sales provision.
• TimewitchminorStrategic or Co-development PartnerBusiness partnership for AI x BPO solution development for large enterprises.
• ユビキラスAI (Ubiquitous AI)minorGTM or Marketing PartnerMembership in HEXAGON business platform for technology and service sales to major manufacturing companies.
• 十八親和銀行 (Juhachishinwa Bank)minorStrategic or Co-development PartnerSelected for new business creation program with AI-powered sales support theme.
• 日本財団 (Nippon Foundation)majorStrategic or Co-development PartnerParticipation in unmanned vessel demonstration experiments and social implementation projects for autonomous shipping.

Scale indicators6 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• ABEJA: Japanese AI startup offering enterprise AI/ML platform and digital transformation services. Comparable to Pluszero in being a Japan-based, mid-size AI consulting and platform company serving Japanese enterprise customers with proprietary AI technology.
• Preferred Networks: Japan's leading deep learning/AI company with focus on custom AI development across transportation, manufacturing, and life sciences. Comparable as a domestic Japanese AI company building proprietary AI technology with enterprise customers, though at a much larger scale.
• Sakana AI: Tokyo-based AI research company developing foundation models and applied AI for enterprise. Comparable as a Japanese AI company focused on advanced NLP/ML research with commercial applications, though more research-oriented than Pluszero.

Broad incumbents

• Accenture: Global consulting firm with major AI/ML practice serving large enterprise customers. Comparable in custom AI consulting services for enterprise digital transformation, but operates at global scale with much broader service portfolio.
• NTT Data: Japan's largest IT services company with significant AI consulting and development capabilities serving Japanese enterprises. Overlaps with Pluszero's enterprise AI consulting offering but operates at much larger scale across broader IT services portfolio.
• Cognizant Technology Solutions: Global IT services company with significant AI/ML consulting practice serving enterprise customers. Comparable in custom AI development services for enterprise, but at vastly larger scale with global operations.
• SoftBank Corp: Major Japanese telecom and AI services provider with enterprise AI solutions and conversational AI products. Competes in the Japanese enterprise AI space with much greater scale, resources, and broader portfolio.

Emerging players

• Appier Group: Taiwan/Japan-listed AI company specializing in enterprise AI applications for marketing and customer engagement. Comparable as a publicly-listed Asia-based AI company with productized offerings for enterprise customers, though focused on marketing AI versus Pluszero's broader NLP focus.
• C3.ai: Enterprise AI software company providing AI applications for large organizations. Comparable as a publicly-traded company offering proprietary enterprise AI platform with productized offerings, though focused on industry-specific AI applications versus Pluszero's services approach.

Others

• Leidos Holdings: US defense/government IT and AI services company with focus on complex systems integration and AI/ML for government clients. Comparable in custom AI services delivery to large institutional customers, though different geography and end markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/pluszero-inc

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Pluszero