Caster

What Caster does

Caster Co., Ltd. (株式会社キャスター, TYO:9331) is a Japan-based remote-work services and AI-augmented BPO provider founded in September 2014 by Shota Nakagawa and listed on the Tokyo Stock Exchange Growth Market in October 2023. The company operates a distributed workforce of more than 1,000 remote assistants across 22 countries and all 47 Japanese prefectures, routing tasks through a patented worker-recommendation engine that reduces assignment time by up to 90%. Its core offering is the CASTER BIZ suite — including remote administrative assistance, recruiting, accounting, HR, contact-center, and sales-marketing services — supplemented by the My Assistant self-serve platform (starting at ¥500/task), NEO assistant (human-AI hybrid), NEO Accounting (Slack-native autonomous accounting), ECHO BOARD (financial-analysis AI), and the CASTER NEO agent builder on Dify.

The business operates on a primarily subscription-based model with monthly tiers ranging from ¥30,000 (Telework Day starter) to ¥200,000 (Remote Style) and enterprise custom pricing; CASTER BIZ accounting and HR plans run on multi-month auto-renewing contracts. Customer acquisition combines direct enterprise sales, OEM/reseller partnerships (ChatWork, freee, Money Forward, Kokuyo, NTT East, KPMG Japan, Shizuoka Bank, DeNA's Coopel), and a product-led self-serve funnel, reaching 5,000+ cumulative client companies as of October 2024 across SMBs, startups, and large enterprises in Japan and selected international markets.

Caster has expanded its footprint through wholly-owned subsidiaries (Glams for e-commerce tools, Caster Tech Japan in Vietnam) and the LUVO joint venture with Altos for generative-AI services, while building proprietary AI agents and partnering with Anthropic (Claude Cowork Finance AI) and Dify. The group holds ISO 27001 and Privacy Mark certifications, multiple Ministry of Internal Affairs telework awards, and is repositioning its mission toward AI-native workforce platforms following the September 2025 CPO appointment from Mercari.

Name

Caster

Legal name

株式会社キャスター

Website

https://caster.co.jp

Company type

Public

Founded year

2014

Operating status

Operating

Headcount range

101–250 employees

Short description

Caster (TYO:9331) is a Japan-based, publicly-listed remote-work services company combining 1,000+ distributed assistants with AI agents to deliver back-office BPO, accounting, HR, recruiting, and e-commerce support to 5,000+ cumulative SMB and enterprise clients.

Ownership category

akta.pro rank

Product category

Remote Workforce and Business Process Outsourcing Services

NAICS

Temporary Help Services (561320), Professional Employer Organizations (561330), Payroll Services (541214)

SIC

Services-Employment Agencies (7361), Services-Management Services (8741), Services-Help Supply Services (7363)

akta.pro primary industry

Contractor Payroll, Invoicing & Payment Services (BPACAGAD)

akta.pro secondary industries

Global Payroll & Multi-Country Payroll Management (BPACAHAC), International Payroll & Contractor Payments (FSAMAIAC)

Keywords

• Remote assistant services
• Business process outsourcing
• Back-office automation
• Online staffing services
• AI workforce solutions

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. CASTER BIZ assistant: Monthly subscription service providing remote assistant support for various business tasks. Users receive allocated hours monthly that can be used for task delegation. Subscription based on hours allocated.
2. CASTER BIZ accounting: Comprehensive accounting service with AI and specialized teams. Medical corporation-specific plans available. Subscription model with dedicated team support.
3. CASTER BIZ recruiting: Recruitment service covering strategy to execution. AI recruitment specific plans available. Subscription or project-based pricing.
4. CASTER BIZ HR: HR and labor-related support services. Subscription model with dedicated HR professionals.
5. My Assistant: Self-serve platform for individual and small business users. Easy ordering system with AI and human support. Starting from 500 yen per task.
6. Professional Services: Customized BPO services for large-volume, complex tasks. Hourly or project-based pricing for enterprise needs.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels7 records

Core offering

Caster provides remote assistant and business process outsourcing services that combine professional human remote workers with proprietary AI agents to handle back-office functions including accounting, HR, recruiting, sales, executive support, and contact center operations. The CASTER BIZ subscription suite serves businesses with monthly hour allocations, while My Assistant offers self-serve task-based support for individuals and small businesses from 500 yen per task.

Product overview

Caster operates as a comprehensive workforce and business process automation platform offering multiple interconnected services. The core CASTER BIZ suite includes five main services: CASTER BIZ assistant (general remote admin support), CASTER BIZ recruiting (full-service recruitment), CASTER BIZ accounting (automated accounting), CASTER BIZ HR (HR/labor administration), and NEO assistant (AI-human hybrid support). Supporting services include My Assistant (self-service individual option), 在宅派遣 (remote worker dispatch), Reworker (flexible-work job platform), EC-Consulting, and Remotte (online career school). The company integrates AI throughout its portfolio, with products like NEO Accounting, ECHO BOARD, and CASTER NEO for AI agent development. The portfolio spans BPO services, AI automation, recruitment, and workforce marketplace, unified by remote work expertise and AI capabilities.

Differentiator

Problem solved

Functional benefit

Brands

• CASTER BIZ: Remote assistant service brand covering various back-office functions including secretarial, HR, accounting, and web operations with AI and human teams
• CASTER BIZ recruiting
• CASTER BIZ accounting
• CASTER BIZ HR
• NEO assistant
• My Assistant
• Remotte
• Reworker

Products and services

• CASTER BIZ assistant Comprehensive AI and human team-based remote assistant service for general business tasks including secretarial work, scheduling, research, email management, and administrative operations. The flagship subscription service offering 24/7 remote support with professional assistant teams.
• CASTER BIZ recruiting Full-service online recruitment support covering strategy planning, job posting optimization, candidate screening, interview scheduling, and ongoing recruitment operations. Includes AI-recruitment specialized plans for hiring AI talent and global recruitment services.
• CASTER BIZ accounting AI and expert team-powered accounting service covering bookkeeping, tax filing, financial reporting, and invoice management. Includes specialized plans for medical corporations, tax accountant firms, and listed companies.
• CASTER BIZ HR HR and labor administration service using AI and professionals to handle personnel management, payroll processing, social insurance procedures, and compliance. Includes year-end adjustment and employment regulation support packages.
• NEO assistant Hybrid business support service combining specialized human professionals with AI technology. Targets complex business tasks requiring both human expertise and AI automation capabilities.
• My Assistant Self-service online assistant service for individuals and small businesses. Simple task-based requests starting from affordable pricing with AI and human hybrid support. Includes outbound call package and free trial campaigns.
• 在宅派遣 (Zaitaku Haken) Remote worker dispatch service matching companies with AI-designable remote talent. Connects businesses with qualified remote workers for various operational needs.
• Reworker Job platform specializing in new work styles including remote work, flexible hours, side jobs, and freelance positions. AI and remote work-focused recruitment media connecting employers with talent seeking flexible arrangements.
• CASTER EC-Consulting E-commerce consulting service covering Amazon operations, sales strategy, and marketing support. Provides end-to-end EC support from operational代行 (outsourcing) to consulting for sales optimization.
• Remotte (リモッテ) Online career school for learning AI and remote accounting skills. Educational platform training individuals in AI-enabled remote work capabilities with labor relations and social insurance courses.
• CASTER BIZ 営業代行 (Sales Outsourcing) Sales outsourcing service handling end-to-end sales operations including prospecting, client communication, and sales support tasks.
• CASTER BIZ contact Remote contact center construction and operation service covering inside sales, customer support, customer success, and back-office sales administration. Supports setup through stable operations.
• CASTER BIZ visit On-site assistant service for physical tasks including document scanning, errands, and other in-person administrative support at client locations.
• CASTER BIZ executive Executive assistant service for C-suite and management-level support including schedule management, meeting preparation, and high-level administrative tasks.
• ChatWork Assistant OEM online assistant service jointly offered with ChatWork, providing online business assistant capabilities directly within the ChatWork business chat platform. Priced at 70,000 yen/month starting.
• Caster BPO Customized high-volume business process outsourcing service for large-scale remote work operations. Hourly or project-based pricing for enterprise needs.

Quantifiable outcome

• Service cumulative adoption exceeds 5,000 companies
• +4 more outcomes

Named customers9 records

Segments6 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability6 records

Feature6 records

Partnerships

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

• ライジングゼファーフクオカ (Rising ZFukuoka)minorGTM or Marketing Partner · 2 February 2025Official partner sponsorship with B.League basketball team, supporting regional sports while promoting remote work awareness.
• KPMG JapanmajorStrategic or Co-development Partner · 28 November 2024LUVO (joint venture with Altos) collaboration with KPMG Japan for AI agent development and accounting business reform support using AI technology.
• DifymajorTechnology or Integration · 22 November 2024Generative AI platform used for AI agent creation services. Caster offers AI agent creation and delegation services using Dify platform, enabling custom automation solutions for clients.
• NTT東日本majorChannel Partner/ Reseller/ Distributor · 18 October 2024Customer case study for CASTER BIZ sales marketing service. Partnership enables NTT East customers to access remote assistant services.
• オルツ (Altos)coreStrategic or Co-development Partner · 27 June 2024Joint venture LUVO established September 2024 for generative AI applications in remote work. Altos provides AI technology, Caster provides remote work operations expertise. LUVO offers AI employee dispatch and AI original character creation services.
• グラムス (Glams)coreStrategic or Co-development Partner · 24 April 2024Acquisition of 100% shares making Glams a wholly-owned subsidiary. Glams operates SASAGE.APP with AI for EC operations, and has remote global engineering team to boost Caster's technological development and automation.
• コクヨ (Kokuyo)majorStrategic or Co-development Partner · 18 March 2024Business partnership for collaborative workplace solutions. Interview published exploring partnership background and shared vision for modern workstyles.
• マネーフォワード (Money Forward)coreStrategic or Co-development Partner · 1 May 2021Capital and business alliance for DX promotion and solving labor shortage issues. Collaboration on back-office solutions for small businesses, integrating CASTER BIZ services with Money Forward accounting tools.
• TWOLAPS TCminorGTM or Marketing Partner · 1 April 2021Outsourcing and creative partnership bringing online assistant capabilities to sports industry, supporting sports organizations with remote administrative support.
• ヒューマンアカデミー (Human Academy)minorGTM or Marketing Partner · 3 June 2020Partnership to provide remote worker online course content for Human Academy's educational platform, expanding reach of remote work training programs.
• 静岡銀行minorGTM or Marketing Partner · 11 September 2019Partnership in human resources area to support regional companies with online HR support and DX strategy through Shizuoka Bank's customer network.
• デジタルハリウッド (Digital Hollywood)minorGTM or Marketing Partner · 5 February 2018Partnership with G's Academy and T-KIDS to provide Remote Academy training courses teaching remote work skills as part of women's programming education initiative.
• freeecoreStrategic or Co-development Partner · 13 September 2017Business partnership for strengthening SME back-office support. First collaboration on freee card membership benefits offering CASTER BIZ services with 10% first-month discount. Second collaboration on freee opening support pack offering 50% discount for new businesses.
• ChatWorkcoreTechnology or Integration · 5 December 2016First OEM partnership launching ChatWork Assistant - online assistant service integrated into ChatWork platform. Service priced at 70,000 yen/month starting, targeting ChatWork's 119,000+ enterprise user base.

Scale indicators10 records

Recent moves10 records

Expansion highlights7 records

Direct peers

• CrowdCare: Japanese BPO company specializing in back-office and customer support operations using distributed remote workers. Closely aligned with Caster's core CASTER BIZ assistant and contact center offerings.
• Timee: Japanese BPO and matching platform (public on TSE Growth Market) offering flexible work arrangements and BPO services. Comparable to Caster's hourly subscription model and remote staffing positioning.
• Lancers: Japanese freelance and crowdsourcing marketplace connecting businesses with remote workers. Directly comparable to Caster's My Assistant and Reworker offerings in matching businesses with remote talent for back-office tasks.

Emerging players

• Helpfeel: Japanese knowledge management and AI search company that emerged from CrowdWorks. Overlaps with Caster's AI-augmented back-office services in the knowledge worker productivity space.
• BizteX: Japanese cloud RPA (cobit) provider focused on back-office automation. Comparable to Caster's process automation layer and Coopel/BizteX partnerships noted in Caster's ecosystem.

Broad incumbents

• Recruit Holdings: Global HR, staffing, and consumer services giant with Indeed and other brands. Competes broadly in recruitment (overlap with CASTER BIZ recruiting) and workforce solutions, though Caster's niche is more focused on remote assistant services.
• Persol Holdings: One of Japan's largest staffing and HR services conglomerates (TSE Prime). Directly competes with Caster in temporary staffing and BPO but operates at vastly larger scale across multiple segments.
• Money Forward: Leading Japanese SaaS provider for accounting, HR, and payroll. Both partner and competitor with Caster in accounting automation, given Caster's CASTER BIZ accounting service overlaps with Money Forward's enterprise offerings.
• freee: Major Japanese cloud accounting and HR software provider. Strategic partner of Caster but also a competitor in the SMB back-office automation space where both serve similar customers.

Regional players

• Belay: US-based remote staffing company providing virtual assistants to small and mid-sized businesses. Closest international analog to Caster's My Assistant and CASTER BIZ assistant subscription model, though operating in a different geography.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/caster_jp
• YouTubeyoutube.com/@caster.members
• Facebookfacebook.com/casterjp

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Subsidiaries3 records

Funding overview

Funding rounds9 records

Investors9 records

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

M&A2 records

Investments

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

Frequently asked questions about Caster