What Rakus does

Rakus Co., Ltd. (株式会社ラクス) is a Tokyo-headquartered, publicly listed (TSE Prime: 3923.T) Japanese SaaS provider founded in 2000, operating a 10-product cloud suite under the 楽楽クラウド (Rakuraku Cloud) brand that targets Japanese SMBs, mid-market, and enterprise customers with back-office and front-office automation. The back-office portfolio covers expense reimbursement (楽楽精算), electronic invoice issuance (楽楽明細), sales management (楽楽販売), invoice receipt (楽楽請求), electronic document storage (楽楽電子保存), attendance/time management (楽楽勤怠), HR/labor management (楽楽人事労務), and accounts receivable management (楽楽債権管理). The front-office portfolio includes an AI-powered inquiry auto-response system (楽楽自動応対) and an email marketing service (楽楽メールマーケティング). A common employee ID layer (楽楽従業員ポータル) provides single sign-on and MFA across the suite, and a lower-cost sub-brand (ラクスライトクラウド) includes Blastmail and Blastengine (the latter now exposes an MCP server for AI agent integration). The products are built on AWS infrastructure and share data across the suite, with AI/ML features embedded at the application layer (OCR, document extraction, NLP, email auto-reply, qualified-invoice checking, AI matching for AR reconciliation). Rakus serves over 108,000 cumulative client companies and reports 489 billion JPY in consolidated FY2025 revenue with 101 billion JPY in operating profit.

Rakus monetizes exclusively through monthly SaaS subscription fees denominated in Japanese yen, priced by user count, address count, or database count, with initial setup fees for most products and tiered plan structures. The 17-year No.1 share in the mail processing market and No.1 positions in cloud sales management and cloud invoice issuance anchor its domestic market position. GTM is hybrid: direct website self-serve with free trials for SMB, inside and field sales for mid-market and enterprise, and a partner referral network of accounting firms, SIs, and consultants. The 2026 AI Strategy targets 'complete automation' by 2030, with multiple AI features shipped or beta-released in mid-2026 across the suite. Rakus also holds ISMS, ISO 27001, PCI DSS, JIIMA, and SOC 1 Type 2 certifications, and is a 9-year Great Place to Work Japan honoree. Geographic scope remains Japan-only.

Name

Rakus

Legal name

RAKUS Co., Ltd.

Website

https://rakus.co.jp

Company type

Public

Founded year

2000

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Rakus (TSE Prime: 3923.T) is a Japanese SaaS company providing a 10-product cloud suite under the Rakuraku Cloud brand that automates back-office (expense, invoice, sales, HR, attendance) and front-office (AI inquiry response, email marketing) workflows for 108,000+ SMB, mid-market, and enterprise clients in Japan.

Ownership category

akta.pro rank

Product category

Cloud Business Software (SaaS)

NAICS

Software Publishers (51321), Software Publishers (513210)

SIC

Services-Computer Programming Services (7371)

akta.pro primary industry

B2B SaaS & Enterprise Personalization (CRM, Sales, Support) (HDAAAGAJ)

akta.pro secondary industries

Marketing Automation & Campaign Management CRM (HDAEAFAB), Software/SaaS Subscriptions (Consumer & Prosumer) (CRAFAIAB)

Keywords

• Cloud business software
• Expense management SaaS
• Electronic invoicing software
• Sales management system
• Email marketing platform

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. SaaS Subscription Revenue: Monthly and annual subscription fees based on user count, address count, or database count. Primary revenue stream from cloud services including 楽楽精算, 楽楽明細, 楽楽販売, 楽楽勤怠, 楽楽請求, 楽楽電子保存, 楽楽人事労務, 楽楽自動応対, and 楽楽メールマーケティング. Revenue is subscription-based with tiered pricing by plan level and user quantity.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels8 records

Core offering

Rakus sells cloud-based SaaS applications to Japanese businesses through its "Rakuraku Cloud" brand, covering back-office functions (expense reimbursement, electronic invoicing, sales management, attendance tracking, HR, electronic document storage, accounts receivable) and front-office functions (AI inquiry auto-response, email marketing). It also operates a "Rakus Light Cloud" sub-brand with simplified email delivery tools (Blastengine, Blastmail). All products are sold via recurring subscriptions in JPY, with initial setup fees and tiered per-user/per-volume pricing.

Product overview

Rakus provides a comprehensive cloud services platform for Japanese SMEs under the '楽楽クラウド' brand, offering 10 core products across back-office and front-office operations. Back-office products include 楽楽精算 (expense reimbursement), 楽楽明細 (electronic invoice issuance), 楽楽販売 (sales management), 楽楽請求 (invoice receipt), 楽楽電子保存 (electronic document storage), 楽楽勤怠 (attendance management), 楽楽人事労務 (HR management), and 楽楽債権管理 (accounts receivable). Front-office products include 楽楽自動応対 (AI-powered inquiry response, 17-year market share leader) and 楽楽メールマーケティング (email marketing, formerly 配配メール, 10,000+ clients). A supplementary layer — 楽楽従業員ポータル (common employee ID/SSO portal) — connects the suite. A lighter sub-brand, ラクスライトクラウド, covers budget email services (ブラストメール, ブラストエンジン). The suite is characterized by cross-product data integration (e.g., 楽楽販売 to 楽楽明細, 楽楽請求 to 楽楽明細, 楽楽求精 to 楽楽電子保存) and a growing AI feature layer across all products targeting the company's 2030 '完全自動化' (full automation) vision. Rakus Group serves a cumulative total of over 108,000 client companies as of March 2026.

Differentiator

Problem solved

Functional benefit

Brands

• 楽楽クラウド: Main cloud services platform encompassing expense management, invoice issuance, sales management, attendance management, and other back-office solutions
• 楽楽精算
• 楽楽明細
• 楽楽販売
• 楽楽勤怠
• 楽楽請求
• 楽楽電子保存
• 楽楽人事労務
• 楽楽自動応対
• 楽楽メールマーケティング
• 楽楽給与明細
• 楽楽従業員ポータル
• 楽楽债权管理
• ラクスライトクラウド
• ブラストエンジン (blastengine)
• ブラストメール (blastmail)
• 配配メール (Haihai Mail)
• メールディーラー (Mail Dealer)
• kinnosuke
• 経理プラス
• MML powered by メルラボ 配配メール

Products and services

• Rakuraku Seisan (楽楽精算) — Expense Reimbursement System Cloud-based expense reimbursement system covering the full workflow from expense submission through approval to accounting processing, with AI-powered auto slip creation using uploaded receipts, card statements, and historical data. Targeted at Japanese SMB and enterprise finance teams.
• Rakuraku Meisai (楽楽明細) — Electronic Invoice Issuance System Electronic invoice issuance system enabling digital issuance of invoices, delivery notes, payment statements, and receipts with paper printing, envelope stuffing, and mailing automation. Compliant with Japan's Electronic Record-Keeping Law and Invoice System, with JIIMA certification.
• Rakuraku Hanbai (楽楽販売) — Sales Management System Cloud-based sales management system covering estimates, orders, purchasing, billing, revenue, and cost management, with AI-powered database configuration assistance through conversational Q&A. Holds No. 1 sales share in Japan's cloud-based sales management system market per Deloitte Touche Tohmatsu Mick research.
• Rakuraku Seikyu (楽楽請求) — Invoice Receipt Management System Invoice receipt management system that centralizes paper and PDF invoice receiving, AI-powered OCR data extraction, automated qualification-invoice checking, and reconciled transfer to payment processing. Used by Japanese businesses to automate supplier invoice workflows.
• Rakuraku Denshi Hozon (楽楽電子保存) — Electronic Document Storage Electronic document storage and retention system for both electronic and paper documents featuring AI-OCR auto-reading and full compliance with the Japanese Electronic Record-Keeping Law (電帳法), with JIIMA certification.
• Rakuraku Kintai (楽楽勤怠) — Attendance Management System Cloud-based attendance and time-management system with automatic time aggregation, compliance support for Japanese labor law, and payroll data export. Formerly known as kinnosuke; rebranded on 2024-07-01.
• Rakuraku Jinji Roumu (楽楽人事労務) — HR and Labor Management System Cloud-based human resources and labor management system covering employee information centralization, onboarding procedures, social insurance, year-end tax adjustment, performance evaluation, and HR analytics for Japanese SMBs.
• Rakuraku Saiken Kanri (楽楽債権管理) — Accounts Receivable Management Accounts receivable management system with AI-powered automatic matching of bank transfer data against invoices, one-click reconciliation, AI-assisted sender matching even when remitter name differs from billing party, and automated journal entry generation.
• Rakuraku Jido Otai (楽楽自動応対) — AI Inquiry Auto-Response System AI-powered customer inquiry auto-response system with automatic reply generation from conversation history and FAQ knowledge base, multilingual translation, team collaboration, and quality standardization. Holds 17 consecutive years of market-leading share in Japan's mail processing market (2009–2025, ITR).
• Rakuraku Mail Marketing (楽楽メールマーケティング) — Email Marketing Service Email marketing service with segment delivery, step-email automation, AI-HTML email generation, AI reply-composition assist, AI-FAQ auto-generation, and Sansan Eight Team business-card integration. Sold on Standard (work-efficiency) and Bridge (new-customer acquisition) plans with address-based pricing. 10,000+ client companies and No. 1 cost-performance ranking.
• Blastengine (ブラストエンジン) — Email Delivery System with MCP Server Email relay and delivery system that exposes a Model Context Protocol (MCP) server enabling AI agent integration for programmatic email automation workflows. Targets developers and B2B senders via the Rakus Light Cloud sub-brand.
• Blastmail (ブラストメール) — Email Delivery Service Email delivery service under the Rakus Light Cloud brand, positioned as a simplified, lower-cost option for small businesses sending bulk or transactional email.
• Rakuraku Jugyoin Portal (楽楽従業員ポータル) — Common Employee ID / SSO Platform Common employee ID platform providing single sign-on across all Rakuraku Cloud services and third-party applications, with multi-factor authentication support. Purchased as a paid add-on for the Rakuraku Cloud suite.

Quantifiable outcome

• Sales management processing time reduced to 1/10
• +6 more outcomes

Named customers9 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration18 records

AI capability10 records

Feature11 records

Partnerships

One partnership is on record.

• Sansan CorporationcoreTechnology or Integration · 28 May 2026Integration partnership with Sansan's Eight Team business card management service. Launched 'Business Card Management Option Powered by Eight Team' for 楽楽メールマーケティング. Enables seamless synchronization of business card data from trade shows and internal contacts to email distribution lists, supporting efficient B2B marketing and sales follow-up workflows.

Scale indicators10 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Cybozu, Inc. Japanese SaaS incumbent (TYO:4776) with Kintone, Garoon, and Cybozu Office — broader business-apps portfolio with overlap in workflow/approval automation adjacent to Rakus's 楽楽販売 and 楽楽精算.
• Salesforce, Inc. Global CRM and marketing-automation platform with established Japan presence. Comparable to Rakus's 楽楽CRM and 楽楽自動応対/楽楽メールarketing offerings, though positioned for larger enterprises.
• TKC Corporation: Japanese accounting, tax-compliance, and ERP software vendor (TYO:9746) serving accounting firms and SMBs. Adjacent competitor to Rakus in Japanese compliance-driven accounting and HR/payroll workflows.
• Sansan, Inc. Japanese cloud business-contact and invoice company (TYO:4443) with Eight, Bill One, and Contract One. Overlaps with Rakus's 楽楽メールマーケティング via Eight Team integration and with 楽楽明細/楽楽請求 in invoice workflows.
• PCA Corporation: Japanese cloud accounting, HR, and payroll software vendor (TYO:9629) with PCA 会計DX and PCA 給与DX. Comparable to Rakus's suite in Japanese SMB back-office, though more focused on accounting/payroll.

Direct peers

• Obic Business Consultants (OBC): Major Japanese SMB cloud accounting and HR/payroll vendor (OBC 勘定奉行, 給与奉行). Directly competes with Rakus's 楽楽精算, 楽楽勤怠, and 楽楽人事労務 modules across Japanese SMBs.
• Money Forward, Inc. Public Japanese SMB SaaS company (TYO:4661) offering Money Forward Cloud across accounting, expense, invoice, HR, payroll, and sales. Directly competes with Rakus's 楽楽クラウド suite on multiple back-office modules.
• freee K.K. Japan's leading cloud accounting and HR/payroll SaaS provider (freee会計, freee人事労務, freee勤怠管理Plus). Directly competes with Rakus's 楽楽精算, 楽楽人事労務, and 楽楽勤怠 for the same Japanese SMB and mid-market back-office segments.
• Yayoi Co., Ltd. Japan's largest accounting software company for SMBs (TYO:2495), transitioning from on-prem Yayoi Kaikei to cloud products. Directly competes with Rakus in cloud accounting and HR for Japanese SMBs.

Emerging players

• SmartHR, Inc. Japan's leading cloud HR/onboarding SaaS for SMBs. Directly competes with Rakus's 楽楽人事労務 in HR/labor workflows, though narrower product scope than Rakus's integrated suite.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/rakus_saiyo
• YouTubeyoutube.com/channel/UCfmMcsMOGWbOJfdVsvM_Rdw
• Facebookfacebook.com/hai2mail
• LinkedInlinkedin.com/company/rakus-co-ltd-

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

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

M&A2 records

Investments1 record

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

Frequently asked questions about Rakus