株式会社ステップ

What 株式会社ステップ does

株式会社ステップ (Step Co., Ltd.) is a privately held regional construction firm founded on June 1, 1995 and headquartered in Nagahama City, Shiga Prefecture, Japan. The company operates three integrated business units: a Construction Department handling asphalt paving for roads, parking lots and factory sites, civil engineering works (curbs, drainage, sidewalks, site preparation), and bridge inspection, repair and painting; an Asphalt Concrete Division (Ascon plant at Shiodu-hama, Nishi-asai-cho) that manufactures and sells asphalt mixtures; and a Transportation Division providing heavy-equipment hauling, industrial-waste collection/transport, and delivery of paving materials. The firm also processes asphalt and concrete debris into recycled roadbed materials sold to third parties, adding a circular-economy revenue line.

The company serves two primary customer segments on roughly equal footing: public-sector clients (municipal and prefectural government infrastructure projects for roads, bridges, and public facilities) and private-sector companies (commercial property development, parking lots, and industrial site preparation). It holds a Shiga Prefecture Governor construction industry permit (Special License No. 070453) and maintains a dense technical workforce for its size — including 8 first-class civil engineering management engineers and 4 first-class paving management engineers — which is a prerequisite for bidding on regulated public tenders. Its competitive position rests on vertical integration from material production through construction execution, a 30-year operating history in northern Shiga, and local reputation rather than technology differentiation.

Revenue is generated through one-time project-based construction contracts with public and private clients, supplemented by transaction-based sales of asphalt mixtures, recycled roadbed materials, and transportation/logistics services. Go-to-market is direct: phone, email, and on-site engagement with no intermediaries, supported by a basic corporate website. The company is led by Representative Director and President Ishida Takeshi (石田猛) and appears to be associated with the broader Tanaka-family enterprise group in Shiga, though it operates as an independent legal entity. With ~20 employees, registered capital of 30 million yen, and no external funding, the firm is positioned as a small, regionally focused, vertically integrated construction operator.

Name

株式会社ステップ

Legal name

株式会社ステップ

Website

https://tanaka-step.jp

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

11–50 employees

Short description

株式会社ステップ (Step Co., Ltd.) is a privately held Shiga Prefecture construction firm (~20 employees) founded in 1995 that vertically integrates asphalt paving, civil engineering, bridge maintenance, in-house asphalt-concrete manufacturing, transportation, and construction-waste recycling for public-sector infrastructure tenders and private commercial clients in the Nagahama City region.

Ownership category

akta.pro rank

Product category

Road Construction and Civil Engineering Services

NAICS

Highway, Street, and Bridge Construction (237310), Other Heavy and Civil Engineering Construction (237990), Highway, Street, and Bridge Construction (23731)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Asphalt Paving & Roofing Materials (2950)

akta.pro primary industry

Highway & Roadway Construction (Highways, Arterials, Streets) (IMAFAEAA)

akta.pro secondary industry

Asphalt Mixing & Paving Materials (Hot/Warm/Cold Mix, RAP/RAS Blends) (EUALAKAG)

Keywords

• Road paving construction
• Civil engineering services
• Bridge maintenance
• Asphalt concrete manufacturing
• Recycled roadbed materials

Headquarters

HQ city

Nagahama City

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales

Revenue model

1. Paving and Civil Engineering Services: Construction services for road paving, civil engineering work including curbs, drainage, sidewalks, and site preparation. Revenue generated from project-based construction contracts for both public and private sector clients.
2. Asphalt Concrete Manufacturing and Sales: Manufacturing and sale of asphalt mixtures produced at the company's asphalt plant. Products sold to construction projects and third-party customers.
3. Transportation and Logistics Services: Heavy equipment transportation, industrial waste collection and transport, and delivery of paving materials including asphalt mixtures and recycled roadbed materials.
4. Industrial Waste Processing: Processing of construction waste (asphalt debris, concrete debris) into recycled resources and sales of recycled roadbed materials and aggregates.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

株式会社ステップ is a regional Japanese general construction company that provides asphalt paving, civil engineering, and bridge maintenance services to public and private sector clients in the Nagahama City area of Shiga Prefecture. The company operates three divisions: a Construction Department performing road, parking lot, and bridge work; an Asphalt Concrete Division manufacturing and selling asphalt mixtures and recycled roadbed materials; and a Transportation Division handling heavy equipment and material delivery.

Product overview

株式会社ステップは総合建設会社として、複数のコアサービスを展開しています。本社・工事部ではアスファルト舗装工事、土木工事、橋梁メンテナンス工事を行い、アスコン事業所ではアスファルト合材製造、産業廃棄物処理、再生路盤材販売を手掛けています。運輸事業部は重機運搬、産業廃棄物収集運搬、舗装材料の配送サービスを提供しています。各事業部が連携し、地域インフラの安全と快適性を支える総合的な建設サービスを提供しています。

Differentiator

Problem solved

Functional benefit

Products and services

• Asphalt Paving Construction (アスファルト舗装工事) Provides new construction and renovation paving work for roads, parking lots, and factory sites, targeting public infrastructure projects and private commercial/industrial properties.
• Civil Engineering (土木工事) Provides construction work for curbstones, side gutters, sidewalks, and ground preparation for public and private sector clients.
• Bridge Maintenance (橋梁メンテナンス工事) Provides bridge inspection, reinforcement, and painting work for preservation and maintenance of public infrastructure.
• Asphalt Concrete Manufacturing (アスファルト合材製造) Manufactures asphalt mixtures by heating and mixing aggregates with asphalt at the company's asphalt plant, producing paving materials sold to construction projects and third-party customers.
• Industrial Waste Processing (産業廃棄物処理) Processes asphalt debris and concrete debris into recycled resources at the company's asphalt plant facility.
• Recycled Roadbed Material Sales (再生路盤材販売) Sells recycled roadbed materials and aggregates produced from recycled construction waste to construction projects and third-party customers.
• Heavy Equipment Transportation (重機運搬) Provides transportation services for construction machinery and equipment using the company's transportation fleet.
• Industrial Waste Collection and Transportation (産業廃棄物収集運搬) Provides collection and transportation of industrial waste generated at construction sites for processing and recycling.
• Paving Material Delivery (舗装材料の運搬) Provides delivery of asphalt mixtures and recycled roadbed materials to construction sites using the company's transportation fleet.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators4 records

Recent moves4 records

Expansion highlights3 records

Direct peers

• NIPPO Corporation: Japan's largest dedicated paving and road construction company, providing asphalt paving, civil engineering, and asphalt mixture manufacturing — directly comparable to Step's core service portfolio, though at vastly greater scale and national geographic reach.
• Obayashi Road Corporation: Paving-focused subsidiary of Obayashi Corporation in Japan, specializing in asphalt paving, road repair, and asphalt mixture production — a direct peer across Step's core service offerings.
• Maeda Road Construction Co., Ltd. A major Japanese paving contractor offering asphalt paving, road construction, and civil engineering works as part of the Maeda Corporation group; directly comparable in service line to Step's paving and asphalt manufacturing business.
• Taisei Road Construction Co., Ltd. A specialist Japanese paving/road construction firm affiliated with Taisei Corporation, focused on asphalt paving, road repair, and production/sale of asphalt mixtures — directly comparable to Step across paving, plant operations, and civil engineering.
• Toda Road Construction Co., Ltd. Japanese paving contractor under the Toda Corporation group, providing road paving, asphalt production, and civil engineering services — a direct competitor in the same product category.

Regional players

• Matsui Construction Co., Ltd. A Shiga Prefecture-based regional construction company with civil engineering and infrastructure capabilities; comparable as a same-regional competitor to Step in the local Kansai/Shiga infrastructure market.

Broad incumbents

• Tokyu Construction Co., Ltd. A diversified Japanese general contractor (Tokyu Construction) that operates a road/civil engineering division; broader portfolio but overlapping in paving, bridge maintenance, and public infrastructure work — comparable as a broader industry incumbent.
• Asanuma Corporation: Mid-sized Japanese general contractor with civil engineering and infrastructure capabilities including road and bridge work; broader scope than Step but materially overlapping in regional paving and civil engineering projects.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BE%E3%82%B9%E3%83%86%E3%83%83%E3%83%97

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 株式会社ステップ