What Totec does

TOTEC (株式会社トーテック / TOTEC CO.,LTD.) is a Tokyo-based, privately held infrastructure construction contractor founded in 1969 through the merger of three electrical works companies (西川電気工事, 東京電気工事, 東部電気工事). The firm specializes in four service lines: overhead distribution line construction (架空配電工事) including pole erection, cable installation and replacement, and high-voltage 6,600V live-line work; indoor electrical equipment construction (電気設備工事) covering EV rapid chargers, LED street lighting, solar panels, and power-receiving systems; information and telecommunications construction (情報通信工事) including optical fiber, 5G mobile base stations, and digital broadcasting infrastructure; and overhead distribution equipment design (架空配電設備設計業務). The company's core technology revolves around certified high-voltage live-line procedures, a 3-level internal technical certification ladder, and process management systems including the Power Construction Active Support System (MCPCaward 2008 incentive recipient) and the Atto Surprise System; in 2024 the Facility Development Division adopted Andpad construction management SaaS, which contributed to a 10% revenue increase and overtime reduction in that unit.

TOTEC's customer base is anchored by two enterprise clients — Tokyo Electric Power PG (東京電力PG) for overhead distribution work and KDDI for telecommunications construction — supplemented by municipal government contracts with Adachi Ward, Tokyo Metropolitan Government, Koto Ward, and other public-sector entities. The firm is one of 11 members of the Tokyo Electric Power Distribution Construction Cooperation Association (東配協), a regulated consortium of distribution contractors covering Tokyo and eight surrounding prefectures, collectively employing approximately 4,300 personnel. TOTEC's assigned service territory spans Eastern Tokyo (Adachi, Katsushika, Sumida, Koto, Edogawa, Arakawa, Taito wards) and Southern Saitama Prefecture, served through five regional sales offices. The company operates two wholly-owned subsidiaries — セクテック (Sekutekku, established 1990) and トーテック・テクノ・サービス (TOTEC Techno Service, 1995) — and the related company トスコ (1994), with a Technical Education Center in Yoshikawa, Saitama dedicated to workforce development and safety certification.

TOTEC generates revenue through project-based B2B construction contracts; pricing is not publicly disclosed and no revenue figures are reported. Registered capital stood at ¥65,720,000 as of November 2023. The firm employed 267 staff and 172 cooperating workers as of March 2026, with no external venture or private equity backing disclosed. Revenue mix is functionally diversified across utility distribution work, telecom infrastructure, and public-sector electrical contracts, but customer concentration remains heavily weighted to two anchor enterprise accounts. Strategic posture in 2024–2025 emphasizes digital tooling (Andpad), brand-building (the 2025 TOTECREW mascot launch, ongoing YouTube/Mynavi recruitment campaigns, the Fukushima Firebonds gold sponsorship since 2021), and ESG alignment (participation in Tokyo's October 2023 Green Bond issuance). On June 27, 2025, Arai Kosuke succeeded Uchiumi Yasuhiro as President and Representative Director, marking a leadership transition at a mature, founder-controlled firm with no announced succession or exit plans.

Name

Totec

Legal name

株式会社トーテック

Website

https://to-tec.co.jp

Company type

Private

Founded year

1969

Operating status

Operating

Headcount range

251–500 employees

Short description

TOTEC (株式会社トーテック) is a Tokyo-based infrastructure construction contractor founded in 1969, specializing in overhead power distribution, indoor electrical equipment, and telecommunications network construction for Tokyo Electric Power PG, KDDI, and municipal government clients across Eastern Tokyo and Southern Saitama.

Ownership category

akta.pro rank

Product category

Electrical Infrastructure Construction Services

NAICS

Power and Communication Line and Related Structures Construction (237130), Architectural, Engineering, and Related Services (5413)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Services-Engineering Services (8711)

akta.pro primary industry

Turnkey distribution buildouts (feeders, reclosers, capacitor banks, line extensions) (EUADAKAK)

akta.pro secondary industries

Engineering design services (line design, substation design, civil/structural) (EUADAKAG), Cable Installation & Construction Services (trenching, duct banks, HDD, pulling, cable laying) (EUADADAI)

Keywords

• Electrical infrastructure construction
• Power distribution services
• Telecommunications construction
• Utility contracting services
• Fire protection installation

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Infrastructure Construction Services: TOTEC generates revenue through fees for power distribution line construction, indoor electrical equipment installation, fire prevention equipment installation, and telecommunications facility construction. Revenue is project-based, with public sector contracts (government agencies, ward offices, schools) and private sector contracts (Tokyo Electric Power PG, KDDI) forming the primary client base. No public disclosure of revenue figures.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels6 records

Core offering

Totec is a specialized B2B infrastructure construction contractor that builds and maintains electrical power distribution, indoor electrical, fire prevention, and telecommunications networks. The company delivers overhead distribution line construction, indoor electrical equipment installation, telecommunications network construction, and design services primarily for Tokyo Electric Power, KDDI, and municipal governments across eastern Tokyo and southern Saitama Prefecture.

Product overview

Totec is an electrical and communication infrastructure construction company offering four core service areas: (1) Overhead Distribution Line Construction as the primary business, involving pole erection, cable installation and replacement, equipment maintenance, and disaster recovery; (2) Electrical Equipment Construction covering indoor electrical systems, EV charging infrastructure, LED lighting, and solar panels; (3) Information Communication Construction including optical fiber installation, railway communication systems, and wireless antenna/mobile network work; and (4) Overhead Distribution Equipment Design services. The company also operates a mascot brand called TOTECREW (トーテックルー) for public relations purposes. Totec functions as a traditional construction engineering firm rather than a software product company.

Differentiator

Problem solved

Functional benefit

Products and services

• Overhead Distribution Line Construction (架空配電工事)

Quantifiable outcome

• 10% revenue increase and overtime reduction achieved through Andpad construction management tool adoption at Facility Development Division
• +1 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Eight partnerships are on record, tiered minor and core.

• 福島ファイヤーボンズ (Fukushima Firebonds)minorGTM or Marketing Partner · 1 January 2024TOTEC has been an official gold partner (ゴールドパートナー) of the Fukushima Firebonds professional basketball team since 2021. Supports team games and conducts public viewing events for employees and families. TOTEC logo appears on the team uniform.
• 東京電力PG (Tokyo Electric Power)coreStrategic or Co-development PartnerTokyo Electric Power (東京電力PG) is TOTEC's primary client and strategic partner. TOTEC is a member of the Tokyo Electric Power Distribution Construction Cooperation Association (東配協), a consortium of 11 specialized contractors that collectively handles distribution line construction and maintenance across Tokyo, Tochigi, Gunma, Ibaraki, Saitama, Chiba, Kanagawa, Yamanashi, and Shizuoka. TOTEC handles assigned territories in eastern Tokyo and southern Saitama.
• KDDIcoreStrategic or Co-development PartnerKDDI is TOTEC's primary telecommunications client. TOTEC provides telecommunications infrastructure construction services including optical fiber installation, mobile base station construction, and digital broadcasting equipment work. KDDI awarded TOTEC the Regional Contribution Award in 2011. TOTEC operates as part of KDDI's construction partner ecosystem.
• 東京電力配電工事協力会 (Tokyo Electric Power Distribution Construction Cooperation Association / 東配協)coreStrategic or Co-development Partner東配協 is a consortium of 11 distribution construction companies working with Tokyo Electric Power PG. TOTEC is one of 11 member companies. The association conducts joint training, disaster recovery support, joint purchasing, and shared technical standards across member companies totaling approximately 4,300 personnel.
• 株式会社セクテックcoreOthersSubsidiary company of TOTEC established in 1990. Contributes to the TOTEC group's comprehensive service offering.
• 株式会社トーテック・テクノ・サービスcoreOthersSubsidiary company providing inspection and maintenance services for绝缘 equipment (绝缘装备) and bypass cables used in TOTEC's construction operations. Conducts visual inspections, voltage resistance tests, and service life inspections every 6 months as required by law.
• 株式会社トスコminorOthersRelated company established in 1994. Operates traffic guidance and security services (交通誘導警備業務) supporting TOTEC's distribution construction work. Located in the same business ecosystem and also recruits security personnel.
• 東京都 (Tokyo Metropolitan Government)minorOthersTOTEC purchased Tokyo Metropolitan Government's Green Bond (東京グリーンボンド) as a social contribution investment, demonstrating alignment with Tokyo's environmental initiatives. The company also conducts construction work for Tokyo Metropolitan Government projects.

Scale indicators4 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• Kinden Corporation: Kinden is a major Japanese electrical construction firm offering power distribution, indoor electrical, and information/communication infrastructure construction nationwide. Like Totec, Kinden serves electric power utilities and telecom carriers with both line and indoor work, making it a closely comparable direct peer in service mix and customer profile.
• Hokuriku Electrical Construction Co., Ltd. Hokuriku Electrical Construction is a regional Japanese power distribution and electrical facility contractor, structurally comparable to Totec in terms of being a utility-aligned distributor-association member. It is a relevant direct peer for understanding consortium-style utility contracting dynamics, even though it operates in a different regional geography.
• Sanki Engineering: Sanki Engineering provides facility electrical, HVAC, and building systems construction in Japan, including indoor electrical equipment installation for commercial, industrial, and public-sector buildings. Its facility-side electrical scope directly overlaps Totec's indoor electrical equipment construction business serving Tokyo wards and metropolitan government.
• Nippon COMSYS Corporation: Nippon COMSYS is a major Japanese telecom infrastructure construction firm providing fiber, mobile, and information-communication construction primarily to NTT and other carriers. It is a direct peer to Totec's information/communication construction line of business, especially relative to KDDI 5G/FTTH rollout scope.
• Kandenko: Kandenko is one of Japan's largest electrical facility and power distribution construction contractors, providing overhead and underground distribution line work and indoor electrical equipment construction to utilities including TEPCO. It is the closest large-scale direct peer to Totec given the shared utility-contractor model, 東配協-style utility alignment, and Tokyo-area footprint.
• Daimei Co., Ltd. (Nippon Densetsu Kogyo): Daimei / Nippon Densetsu Kogyo is a Japanese electrical infrastructure contractor providing power distribution line construction, communication line work, and indoor electrical equipment installation to utilities and telecom carriers. It operates in a similar 东配協-equivalent framework with utilities and competes for the same power and telecom buildout work as Totec.
• Toko Electrical Construction Co., Ltd. Toko Electrical Construction is a mid-sized Japanese power distribution and electrical facility contractor, listed and operating as a 東配協-equivalent utility-aligned contractor. It is comparable to Totec in service mix (distribution + indoor electrical) and in business model (TEPCO-aligned, multi-prefecture coverage).
• Kyowa Exeo Corporation: Kyowa Exeo is a leading Japanese telecommunications and electrical infrastructure contractor, providing fiber, mobile base station, and electrical facility construction to carriers such as KDDI and NTT. It directly mirrors Totec's telecom (KDDI) and indoor electrical service lines and competes for similar carrier capex work.

Emerging players

• Dycom Industries: Dycom Industries is a U.S. specialty contractor providing telecom infrastructure construction (fiber, wireless, 5G) for major carriers like AT&T, Verizon, and Lumen. It mirrors Totec's information/communication construction line of business at scale and serves as an international comparable for telecom-driven revenue mix.

Broad incumbents

• Quanta Services: Quanta Services is one of the largest North American utility infrastructure contractors, providing electric power, oil & gas, and renewable energy construction. It serves as a broad incumbent comparable for Totec's overhead distribution and grid-modernization scope, illustrating how an electric T&D contractor can scale across utility, telecom, and energy transition services.

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

Subsidiaries2 records

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 Totec