What Best Computer System does

Best Computer System Co., Ltd. (株式会社ベストコンピュータシステム) is a privately held Japanese software vendor founded in February 1981, headquartered in Nishi-Shinjuku, Tokyo, with an additional sales office in Osaka. The company designs and develops the Best de Series (ベストdeシリーズ), a suite of five Windows-based desktop applications purpose-built for the Japanese landscape/garden construction and civil engineering industry. Its flagship product, Best de Sekisan (Best de 積算), is a cost estimation system aligned with MLIT government pricing standards and claims industry-leading status with more than 500 installations nationwide. Supporting products include Best de Mitsumori (simplified estimation), Best de Zouen (free daily report management with paid annual service contracts), Best de Kouji Kanri (project cost management), and Best de Gijutsusha Kanri (technician/qualification records for public works submissions). All products share integrated data formats, creating workflow continuity for multi-product customers.

The company's technology architecture is built around rule-based cost calculation engines, structured unit-price and market-price databases referencing the Construction Cost Research Institute, and interoperability with public-sector standards such as CALS/EC and electronic bidding. Distribution is conducted through a nationwide sales agent network (using no-fee, no-quota terms with tiered commissions), direct phone/email/fax sales, and a permanent product demo corner at Fujitsu Solution Stage in Tokyo. Revenue is generated through perpetual software licenses, paid on-site installation and unit-price maintenance services, an annual service contract (¥29,000/year) for the free Best de Zouen product, and channel markups on agent resales.

Customer base consists almost entirely of small-to-medium landscape/garden construction firms and consultants in Japan, with formal supporting-membership relationships with three major industry associations (Tokyo and Kanagawa Landscape and Greening Associations, and the Japan Landscape Construction Association). Demand generation relies on industry association IT seminars, trade show presence at Eco Green Tech, downloadable demo software, and direct contact with the company's representative director. The firm maintains a headcount of approximately 10 employees and registered capital of ¥25,000,000, reflecting a stable, niche-focused operating model rather than an actively scaling organization.

Name

Best Computer System

Legal name

株式会社ベストコンピュータシステム

Website

https://bcs.co.jp

Company type

Private

Founded year

1981

Operating status

Operating

Headcount range

1–10 employees

Short description

Best Computer System is a Tokyo-based software vendor founded in 1981 that develops the Best de Series, Windows-based desktop applications for cost estimation, project management, daily reports, and technician records used by Japanese landscape and garden construction contractors. With ~10 employees and 500+ installations of its flagship estimation product, it serves SMBs in the vertical.

Ownership category

akta.pro rank

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Software Licensing — Perpetual License: Customers purchase software packages with perpetual (one-time) licenses. The company also earns revenue from on-site installation and operation guidance (charged separately), unit price maintenance services, and remote maintenance support.
2. Annual Service Contracts: The ベストde造園 product is distributed free-of-charge but requires an annual service contract at ¥29,000/year (tax included). This covers administrative fees, CD-ROMs, manuals, shipping, and inquiry support. Includes version upgrades. Other products may follow similar annual maintenance models.
3. Reseller Channel Commissions: Sales agents purchase products from BCS at negotiated wholesale prices and resell to end customers. Commission tiers are determined by order volume and annual sales performance, creating recurring revenue through the channel.
4. Support Services: On-site installation guidance (3 sessions per cycle, charged separately; 3 consecutive days including travel for remote locations), unit price maintenance, and remote maintenance services are billed separately.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

Best Computer System develops and sells the "Best de Series," a suite of Windows desktop software for Japanese landscape, garden, and civil engineering construction contractors. The flagship Best de Sekisan handles public- and private-sector cost estimation with MLIT pricing standard compliance and CALS/EC electronic bidding support, with over 500 installations nationwide claiming industry No. 1 position. Adjacent products cover simplified estimation (Mitsumori), free daily report management (Zouen), construction cost control (Kouji Kanri), and technician roster/qualification management (Gijutsusha Kanri), with data interoperability across the suite.

Product overview

Best Computer System offers the 'Best de Series' (ベストdeシリーズ), a suite of five integrated software products targeting the Japanese landscaping and civil engineering industry. The core product is Best de Sekisan, the industry's leading cost estimation software with over 500 installations, supported by Best de Mitsumori for simplified private-sector estimates. Best de Zouen provides free comprehensive daily report management, while Best de Kouji Kanri handles construction management and cost control with integration to the estimation suite. Best de Gijutsusha Kanri manages technical personnel credentials and rosters. All products share data integration capabilities and are distributed nationwide through dealer and direct sales channels.

Differentiator

Problem solved

Functional benefit

Brands

• ベストdeシリーズ: Suite of software products for the landscaping industry including estimation, management, and technical personnel tools
• ベストde積算
• ベストde見積
• ベストde造園
• ベストde工事管理
• ベストde技術者管理

Products and services

• Best de Sekisan (ベストde積算) Flagship cost estimation software for landscape, garden, and civil engineering contractors supporting both government (public works, MLIT pricing standards, CALS/EC electronic bidding) and private-sector projects; references official pricing from the Ministry of Land, Infrastructure, Transport and Tourism and the Construction Cost Research Institute.
• Best de Mitsumori (ベストde見積) Simplified spreadsheet-style cost estimation software for private-sector construction projects (residential gardens and small-scale works); data integrates with Best de Sekisan and outputs estimates, invoices, and purchase orders.
• Best de Zouen (ベストde造園) Free comprehensive daily report management system with six integrated modules: daily report management, employee/worker management, customer management, site management, schedule/process management, and project/construction management; outputs All-Ken standardized forms; ¥29,000/year required for the annual service contract after a free trial.
• Best de Kouji Kanri (ベストde工事管理) Low-cost project cost management software that links with Best de Sekisan to track construction costs, generate expense slips, project ledgers, execution budgets, and produce project lists and detail reports; reduces administrative burden for site managers and improves cost awareness.
• Best de Gijutsusha Kanri (ベストde技術者管理) Engineer/technician management system for creating technician rosters, qualification records, and career history documents required for public works contracts and external submissions; supports searches by qualification, years of experience, and project history.

Quantifiable outcome

• Time savings of approximately 42 hours per month for a 5-person team (20 min/day saved × 5 people × 25 days), plus ~10 hours/month in report creation time, totaling ~104,000 yen/month in efficiency value
• +1 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Four partnerships are on record, tiered minor.

• (interaction Corp.)minorGTM or Marketing Partner · 1 May 2003Exhibited the 7th Eco Green Tech 2003 trade show at Tokyo Big Sight, organized by interaction Corp., which also features the event website at interaction.co.jp/eco/index.html.
• FJB (富士通系列ビジネス伙伴)minorStrategic or Co-development Partner · 1 November 2002Co-sponsored IT training seminars for the Tokyo and Kanagawa Landscape Associations alongside OBC. FJB appears to be a Fujitsu Group business partner providing integrated business software (likely 勘定奉行 / Obc) that complements BCS's landscape-specific software.
• OBC ( 경영 Software Specialist)minorStrategic or Co-development Partner · 1 November 2002Co-sponsored IT training seminars alongside FJB. OBC (Office Brand Company) is a business software company providing ERP/accounting software (勘定奉行) that complements BCS's landscape estimation software.
• 富士通ソリューションステージ (Fujitsu Solution Stage)minorChannel Partner/ Reseller/ Distributor · 1 November 2001Bcs established a permanent demo corner for the Best de series at the Fujitsu Solution Stage Takebashi location in November 2001, providing physical demonstration space for prospective customers.

Scale indicators4 records

Recent moves11 records

Expansion highlights6 records

Broad incumbents

• OBC (Office Brand Company): Provider of the widely deployed `勘定奉行` accounting/ERP suite and a long-standing BCS co-sponsorship partner for landscape-association IT seminars. Overlaps with BCS via complementary SMB back-office and estimation workflows.
• JustSystems (ジャストシステム): Major Japanese developer of `一太郎` and `ATOK` productivity software with an SMB foothold — a broad incumbent whose productivity stack could substitute for spreadsheet-style landscape estimation workflows.
• Yayoi (弥生株式会社): Japan's dominant accounting-software vendor for micro-SMBs; addresses similar landscape-contractor back-office needs and competes indirectly for the same buyer wallet.
• Otsuka (大塚商会): Large Japanese SMB-focused IT distributor and software reseller; supplies `奉行` and adjacent accounting/ERP products into the same small landscape-construction firms BCS targets.

Others

• Microsoft Japan: Provider of Excel and the broader Microsoft 365 productivity stack frequently used by smaller Japanese construction firms as a low-cost stand-in for dedicated estimation software, raising substitution risk for BCS.

Direct peers

• Kensetsu System (建設システム): Japanese construction IT vendor specializing in estimation, scheduling and site-management software serving both civil and building contractors — directly competes with BCS for the same SMB estimation buyer.
• Fukui Computer (福井コンピュータ): Japan's leading construction-sector software vendor offering estimation, CAD and project-management suites for general contractors — the most directly comparable competitor to Best Computer System's landscape estimation stack.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Best Computer System