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Olive Consulting Co., Ltd. / Core Systems

Design and Development (Project-Based) of the Tax Accountant Matching Platform "Mitsukaru Zeirishi"

How users find a tax accountant:Relied on referrals/individual searches → search nationwide tax accountant firms by multiple criteria and contact directly
#PHP#Vue.js#Java#MySQL#AWS
Design and Development (Project-Based) of the Tax Accountant Matching Platform "Mitsukaru Zeirishi"

Challenge

Individuals and businesses looking for a tax accountant faced concerns such as "we don't know which tax accountant suits us," "we want to compare multiple firms," and "we want an expert to make a recommendation," while tax accountant firms faced client-acquisition challenges such as "acquiring new clients" and "not knowing how to promote the firm." Traditionally, finding a tax accountant relied on referrals from acquaintances or individual searches, and there was no efficient platform for users and firms to find each other. This two-sided challenge needed to be solved through a web-based matching platform.

Solution & Team

Miichisoft built "Mitsukaru Zeirishi," a matching platform on AWS that connects users looking for a tax accountant with tax accountant firms nationwide. Users can search and narrow down firms by multiple criteria — location, industry, request type (retainer tax accountant, tax return filing, inheritance, invoice system, etc.), firm characteristics (former tax office staff on board, strong with cloud tools, available on weekends, etc.), and supported accounting software — and can directly contact firms or the platform administrator. Tax accountant firms can post their firm information and videos from their My Page and use the built-in homepage feature for free. We handled consulting, basic design, detailed design, and UI/UX design through development, unit testing, and integration/system testing end-to-end, and have continued to support production operation and maintenance after release. The business has since expanded to include "Zeirishi Portal" for tax accountant firms and "Tsunagaru Zeirishi" for product matching, and we continue to build and operate the platform infrastructure.

Team: Miichisoft's development team (composed of PM, BrSE, developers, and QA; up to 11 members at peak) handled everything end-to-end from consulting, design, and development through various testing to production operation and maintenance.
Period: Since 2022 (initial development approx. 6 months + spec changes/improvements, followed by ongoing operation and maintenance)
Engagement: Project-based

Tech Stack

PHP / Vue.js / Java / MySQL / AWS

About the Client

Olive Consulting Co., Ltd. (Head office: Koraku, Bunkyo-ku, Tokyo; established: May 2015; Representative Director: Takayuki Shimizu) is a company that operates a matching portal business specialized in the tax accountant industry. It runs "Zeirishi Portal" for tax accountant firms, "Mitsukaru Zeirishi," which connects individuals and businesses looking for a tax accountant with accounting firms, "Tsunagaru Zeirishi," which introduces the best products and vendors for clients' business challenges, and a bookkeeping agency service. The company aims to solve both sides of the challenge: helping tax accountant firms acquire new clients and helping users who "can't find the right tax accountant."

Results

Relied on referrals/individual searches → search nationwide tax accountant firms by multiple criteria and contact directly
How users find a tax accountant
※ mitsukaru-zeirishi.com (public, verified 2026-06-28)
88 firms (as of June 2026)
Number of listed tax accountant firms
※ mitsukaru-zeirishi.com (public, verified 2026-06-28)
Multi-axis search: 20 industries, 17 request types, 11 characteristics, 14 accounting software
Search criteria for tax accountants
※ mitsukaru-zeirishi.com (public, verified 2026-06-28)

Screens

* Figures are provided by the client or based on public information and summarized by Miichisoft. Results are not guaranteed.

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