税理士法人イデアコンサルティング
Ideaconsulting Tax Corporation is a privately held Japanese tax accountant firm founded in 2008, based in Ebisu, Tokyo, that provides recurring tax advisory, accounting, M&A, inheritance, and social insurance services to venture companies and SMEs across Japan.
- Company typePrivate
- Founded2008
- HeadquartersTokyo, Japan
- Headcount11–50
- GTM typeB2B
- OfferingServices
What 税理士法人イデアコンサルティング does
Ideaconsulting Tax Corporation (税理士法人イデアコンサルティング) is a privately held Japanese tax accountant legal entity founded on April 1, 2008, headquartered on the 15th floor of Ebisu Garden Place Tower in Shibuya, Tokyo. The firm provides recurring tax advisory, accounting/bookkeeping, payroll, social insurance, tax investigation defense, company formation, inheritance and succession planning, real estate tax structuring, small/mid-market M&A advisory, and restaurant business establishment support under representative partners Ito Daisuke (former National Tax Agency official) and Ozono Masanori. Service delivery is organized around ongoing 顧問 (advisory) contracts for venture companies and SMEs, with structured cross-referral into discrete service modules such as inheritance (via souzoku.asahi.com) and tax investigation (via ideaconsulting.red), plus a sub-brand at ideaconsulting.net for accounting outsourcing and restaurant establishment support.
The firm operates without disclosed external capital and is wholly partner-owned, with two affiliated group entities: a social insurance labor consultant corporation (社会保険労務士法人イデアコンサルティング) and a general business consulting company (株式会社イデアコンサルティング). Technology footprint is limited to standard third-party accounting and payroll software rather than proprietary systems; the firm holds no patents or AI/ML assets. Marketing channels include company website content, seasonal office newsletters ("事務所通信" published through 2026), media features (KINZAI Financial Plan, Rakuten-related press), referral networks via financial institutions, and directory listings on Advisor-Navi and Axconsulting.
Customer mix is concentrated in Japanese SMBs and entrepreneurs spanning painting/construction, restaurant/food service, design, equipment trading, sports/recreation, illustration, web production, and application development. Customer engagement is multi-year with documented 10+ year relationships. The firm is registered as a 中小M&A支援機関 under the national M&A support institution framework and runs a bi-annual "Business Success Laboratory (ビジネス成功研究会)" client networking forum as a retention and referral mechanism. Operating geography is the Kanto Region of Japan only, with no international or franchise footprint.
税理士法人イデアコンサルティング firmographics
Firmographics- Name
- 税理士法人イデアコンサルティング
- Legal name
- 税理士法人 イデアコンサルティング
- Website
- https://ideaconsulting.jp
- Company type
- Private
- Founded year
- 2008
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Ideaconsulting Tax Corporation is a privately held Japanese tax accountant firm founded in 2008, based in Ebisu, Tokyo, that provides recurring tax advisory, accounting, M&A, inheritance, and social insurance services to venture companies and SMEs across Japan.
- Ownership category
- akta.pro rank
税理士法人イデアコンサルティング industry classification
Industry- Product category
- Tax Advisory & Accounting Services
- NAICS
- Accounting, Tax Preparation, Bookkeeping, and Payroll Services (5412), Other Accounting Services (541219)
- SIC
- Services-Engineering, Accounting, Research, Management (8700)
- akta.pro primary industry
- Business Owner & Executive Financial Planning (FSAEAAAO)
- akta.pro secondary industries
- Transaction Tax Structuring & Deal Advisory (BPAHAOAJ), Tax Operations Support (Indirect Tax, Withholding, Compliance Admin) (BPAAAGAI), Tax-Aware Retirement & Estate Coordination (FSAEABAJ)
Keywords
Where 税理士法人イデアコンサルティング is headquartered
LocationHeadquarters
- HQ city
- Tokyo
- HQ country
- Japan
- HQ region
- Asia
Offices1 record
Markets served
税理士法人イデアコンサルティング business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Others
Revenue model
- Tax Advisory and Consulting Services: Ongoing advisory contracts providing tax accounting services, tax filing, and financial consulting. Revenue generated through recurring professional service fees for tax advisory and compliance.
- Specialized Services: One-time and project-based services including company formation, M&A advisory, inheritance tax planning, real estate consulting, and social insurance processing.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Other | Custom professional service pricing based on client needs and scope |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels5 records
税理士法人イデアコンサルティング product offering
Product offeringCore offering
Ideaconsulting is a Tokyo-based tax accountant corporation providing tax advisory, accounting, inheritance, M&A, real estate consulting, social insurance, company formation, tax investigation support, restaurant business support, and bookkeeping outsourcing services primarily to SMEs, venture companies, and entrepreneurs in Japan. The firm combines certified tax accountants and social insurance labor consultants under one roof to deliver integrated compliance and consulting engagements.
Product overview
税理士法人イデアコンサルティングは、東京都渋谷区恵比寿に本社を置く税理士法人で、税務顧問・相続・経理代行・飲食店サポート・社会保険業務・税務調査・会社設立・不動産・M&Aの専門サービスを提供するプロフェッショナルサービス firmです。サービスは個別の専門モジュールとして提供され、税務顧問を核として必要に応じて他のサービスへとシームレスに連携する体制を構築しています。グループ内に社会保険労務士法人イデアコンサルティングも傘下に置き、ワンストップでの総合的な経営支援を実現しています。
Differentiator
Problem solved
Functional benefit
Brands
- идеaconsulting.net: Accounting outsourcing (経理代行) service platform operated by the company.
- ideaconsulting.net (飲食店サポート)
Products and services
- Tax Advisory (税務顧問) Ongoing tax advisory service for businesses and individuals, led by certified tax accountants and including tax filing, planning, and consultation.
- Inheritance (相続) Advisory and support for inheritance tax planning, succession and estate-related matters for individuals and families.
- Accounting Outsourcing (経理代行) Outsourced bookkeeping and accounting services for SMEs and venture companies, handling day-to-day accounting entries and reporting.
- Restaurant Business Support (飲食店サポート) Dedicated tax and accounting support tailored to restaurant and food service operators.
- Social Insurance Services (社会保険業務) Social insurance and labor-related consulting delivered by in-house social insurance labor consultants, integrated with the firm's tax services.
- Tax Investigation Support (税務調査) Support and representation for clients facing Japanese tax authority investigations, leveraging the firm's National Tax Agency expertise.
- Company Formation (会社設立) Advisory and administrative support for establishing new companies in Japan, including legal entity setup and initial filings.
- Real Estate Consulting (不動産) Tax and accounting advisory for real estate holdings, transactions, and investments for individual and corporate investors.
- M&A Advisory (M&A) Advisory support for mergers, acquisitions, business succession, and related transactions, integrating tax and accounting perspectives.
Quantifiable outcome
- Multiple clients report achieving profitable operations and clear financial visibility
- +1 more outcomes
Companies that use 税理士法人イデアコンサルティング
Customer profileNamed customers9 records
Segments4 records
Ideal customer profiles3 records
税理士法人イデアコンサルティング technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
税理士法人イデアコンサルティング partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- 税理士コンシェルジュ (Zeirishi Concierge)coreBusiness partnership with tax accountant referral service having network of 1,000 tax professionals. When the firm cannot handle certain specialized work, clients are referred to 税理士コンシェルジュ. The partnership enables comprehensive service coverage across specialized tax and accounting needs.
Scale indicators3 records
Recent moves6 records
Expansion highlights6 records
税理士法人イデアコンサルティング competitors and assessment
Company assessmentDirect peers
- 税理士法人チェスター (Chester Tax Accountant Corporation): Mid-sized Japanese 税理士法人 with strong inheritance tax specialization alongside broader SME advisory. Comparable in service breadth and partner-led mid-market positioning, making it the closest direct competitor for Idea Consulting's tax advisory and succession services.
- 税理士法人TOMA (TOMA Tax Corporation): Multi-office 税理士法人 offering tax advisory, social insurance, M&A, and business consulting. Comparable on the one-stop service model for SMEs and the inclusion of group structure (tax + social insurance); however larger and more geographically diversified.
- 税理士法人あおば (Aoba Tax Accountant Corporation): Tokyo-based 税理士法人 serving SMEs and individuals with tax filing, advisory, and accounting services. Comparable size and target client profile, with overlapping service offerings in bookkeeping and tax investigation support.
- 税理士法人TOTAL (TOTAL Tax Corporation): Tokyo-based 税理士法人 offering comprehensive tax, accounting, social insurance, and M&A advisory for SMEs and entrepreneurs. Directly comparable in target segments (venture/SME), service mix (tax advisory + HR + M&A), and mid-sized partner-led structure.
Emerging players
- スタートアップ税理士法人 (Startup Tax Accountant Corporation): Emerging 税理士法人 specializing in venture and startup clients with digital-first service delivery. Competes directly for Idea Consulting's primary entrepreneur/venture segment but uses a more tech-enabled, scalable model that could pressure pricing.
- freee株式会社 (freee K.K.): Cloud accounting and HR SaaS platform for Japanese SMEs. Disrupts the traditional 経理代行 (bookkeeping outsourcing) market that Idea Consulting occupies, representing a structural substitute risk rather than a direct competitor today.
- 株式会社マネーフォワード (Money Forward, Inc.): Cloud accounting, payroll, and tax SaaS provider for SMEs and individuals. Represents the technology-led alternative to traditional tax/accounting advisory for Idea Consulting's SME clients, with potential to compress routine compliance volumes.
Broad incumbents
- 辻・本郷 税理士法人 (Tsuji & Hongo Tax Corporation): One of Japan's largest 税理士法人 with multi-office nationwide presence and full-service tax, accounting, and consulting. Serves the same SME and high-net-worth client base but at significantly larger scale, representing the aspirational incumbent for a growing mid-sized firm.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks4 records
Key highlights6 records
Customer concentration
税理士法人イデアコンサルティング social profiles
Digital presence税理士法人イデアコンサルティング financial estimates
Financial estimateRevenue estimate
Valuation estimate
税理士法人イデアコンサルティング leadership team
Management profileNumber of profiles
Profiles2 records
税理士法人イデアコンサルティング subsidiaries and ownership
Company hierarchySubsidiaries2 records
税理士法人イデアコンサルティング funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
税理士法人イデアコンサルティング M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about 税理士法人イデアコンサルティング
What does 税理士法人イデアコンサルティング do?
Ideaconsulting is a Tokyo-based tax accountant corporation providing tax advisory, accounting, inheritance, M&A, real estate consulting, social insurance, company formation, tax investigation support, restaurant business support, and bookkeeping outsourcing services primarily to SMEs, venture companies, and entrepreneurs in Japan. The firm combines certified tax accountants and social insurance labor consultants under one roof to deliver integrated compliance and consulting engagements.
Is 税理士法人イデアコンサルティング a public or private company?
税理士法人イデアコンサルティング is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was 税理士法人イデアコンサルティング founded?
税理士法人イデアコンサルティング was founded in 2008. It employs 11 to 50 people.
Where is 税理士法人イデアコンサルティング based?
税理士法人イデアコンサルティング is headquartered in Tokyo, Japan, in the Asia region.
How does 税理士法人イデアコンサルティング make money?
Two revenue lines are on record. Tax Advisory and Consulting Services are the primary driver. The others are specialized Services.
Who are 税理士法人イデアコンサルティング's main competitors?
Direct peers on record are 税理士法人チェスター (Chester Tax Accountant Corporation), 税理士法人TOMA (TOMA Tax Corporation), 税理士法人あおば (Aoba Tax Accountant Corporation) and 税理士法人TOTAL (TOTAL Tax Corporation). Emerging players are スタートアップ税理士法人 (Startup Tax Accountant Corporation), freee株式会社 (freee K.K.) and 株式会社マネーフォワード (Money Forward, Inc.). 辻・本郷 税理士法人 (Tsuji & Hongo Tax Corporation) is listed as a broad incumbent.
Does 税理士法人イデアコンサルティング have an API?
No public API is recorded for 税理士法人イデアコンサルティング.
What industry is 税理士法人イデアコンサルティング in?
税理士法人イデアコンサルティング's product category is Tax Advisory & Accounting Services. Its primary akta.pro industry code is FSAEAAAO, Business Owner & Executive Financial Planning, with a secondary code of BPAHAOAJ, Transaction Tax Structuring & Deal Advisory. Its NAICS code is 5412 and its SIC code is 8700.