Sustech

What Sustech does

Sustech (株式会社Sustech), founded in 2021 and headquartered in Tokyo, is a private Japanese Green Transformation (GX) platform company that sells integrated decarbonization and renewable-energy solutions to large enterprises and energy operators. Its core products are CARBONIX, a cloud-based SaaS platform for visualizing and calculating Scope 1/2/3 GHG emissions across supply chains and supporting carbon neutrality strategy, and ELIC, an AI-powered distributed power management platform that performs power generation and price forecasting and optimizes the aggregation of solar generation, battery storage, and FIP-transition assets. Around these two anchors Sustech bundles PPA origination and operations (Onsite and Offsite), O&M services for renewable and battery assets, an EV charging service (ELIC Charge), and a GX-focused investment vehicle (Sustech GX Capital), operating through three wholly-owned subsidiaries (Sustech Engineering Services, ELIC Link, ELIC Charge).

The company runs a sales-led, enterprise-focused go-to-market model with quote-based annual subscription and managed-service pricing, distributing both directly and via a strategic partnership with Tokyo Electric Power Company Energy Partner that opens TEPCO's corporate customer base. Revenue streams span subscription SaaS (CARBONIX, ELIC, ELIC Charge), managed-service and project fees from PPA origination, recurring O&M contracts, and emerging EV infrastructure income. Named customers include Nitori Group (targeting 80MW of rooftop solar / 100,000 MWh annually), Daisei Warehouse Transportation, and Taiwan TPCT (jointly held with Evergreen Group) for a cross-border PPA — the latter marking Sustech's first international expansion.

Sustech holds ISO 27001 and ISO 27017 certifications for information and cloud security, received the 2025 New Energy Award (令和7年度 新エネ大賞) for its PPA services, and had disclosed cumulative fundraising exceeding 15 billion JPY within five years of founding as of June 2026. The company is led by co-representative directors Yunosuke Tanno (丹野 裕介) and Yuichiro Iida (飯田 祐一郎), with a CTO (大橋) who represents the firm at industry events such as the Nikkei BP Energy Summit 2026. Revenue is not publicly disclosed.

Name

Sustech

Legal name

株式会社Sustech（サステック）

Website

https://sustech-inc.co.jp

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

11–50 employees

Short description

Sustech is a Tokyo-based private GX (Green Transformation) platform company, founded in 2021, that sells AI-powered carbon accounting (CARBONIX) and distributed power optimization (ELIC) SaaS alongside PPA, O&M, and EV charging services to large Japanese enterprises and renewable energy operators.

Ownership category

akta.pro rank

Product category

Decarbonization and Clean Energy Software

NAICS

Computer Systems Design and Related Services (54151), Computer Systems Design Services (541512), Custom Computer Programming Services (541511)

SIC

Services-Prepackaged Software (7372), Services-Management Services (8741), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

DER Aggregation & Virtual Power Plants (VPPs) (EUAMAJAC)

akta.pro secondary industries

DER & Microgrid Interconnection / Grid Edge Integration Services (EUAEANAF), DERMS Platforms & Utility Control Room Integration (EUADALAC), Benchmarking, Ratings & Stakeholder Reporting Portals (Scorecards, Dashboards) (EUABAEAJ), Market Access, Bidding & Settlement Services for Aggregators (ISO/RTO, Balancing) (EUAFAHAH), DER Financing, Contracting & Program Management (PPAs, Shared Savings, Performance) (EUAFAHAL)

Keywords

• Decarbonization software
• GHG emissions management
• AI power aggregation
• Renewable energy PPA
• Battery aggregation platform

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Carbon Neutral Platform Services (CARBONIX): Cloud-based SaaS platform for GHG emissions calculation, supply chain carbon management, and decarbonization support. Provides carbon credit trading facilitation and environmental value transactions.
2. Power Operations (ELIC): AI-powered distributed power management platform providing aggregation services for renewable energy and battery storage operators. Generates revenue through platform fees and transaction optimization services.
3. PPA Services: Power Purchase Agreement aggregation services including Onsite PPA and Offsite PPA models. Revenue generated through project management fees and ongoing service contracts.
4. O&M Services: Operations and maintenance services for renewable energy power plants and battery storage facilities.
5. EV Charging (ELIC Charge): EV charging station services and infrastructure management.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Sustech is a Green Transformation (GX) platform company that sells cloud-based software and managed services to help enterprises decarbonize. Its core offerings are CARBONIX, a SaaS platform for visualizing and calculating GHG emissions (Scope 1, 2, 3) across the supply chain and managing carbon neutrality strategies including environmental value and credit transactions; and ELIC, an AI-powered distributed power management platform that performs power generation forecasting, market trading, and aggregation of solar power, FIP-transitioned assets, and battery storage to maximize revenue. Sustech complements these platforms with Onsite/Offsite PPA services, battery and FIP aggregation, EV charging (ELIC Charge), O&M services for renewable power plants, and an investment fund (Sustech GX Capital).

Product overview

Sustech operates as a Green Transformation (GX) platform company offering an integrated decarbonization ecosystem. The core product portfolio consists of CARBONIX, a decarbonization support platform for GHG emissions visualization and carbon neutrality strategy, and ELIC, an AI-powered distributed power operations platform. CARBONIX and ELIC work together to support the full GX journey from emissions calculation to power optimization. Additional offerings include ELIC Charge for EV charging infrastructure, Sustech O&M Services for facility operations, and GX Capital for investment services. The company also publishes CARBONIX MEDIA as an educational resource for GHG emissions knowledge.

Differentiator

Problem solved

Functional benefit

Brands

• CARBONIX: Decarbonization support platform for visualizing and calculating CO2 emissions across the supply chain
• ELIC
• Sustech GXキャピタル (Sustech GX Capital)
• ELIC Charge

Products and services

• CARBONIX Cloud-based decarbonization support platform for enterprises pursuing carbon neutrality; visualizes GHG emissions across Scope 1, 2, and 3, supports renewable energy introduction, optimizes power operations, and facilitates environmental value and carbon credit transactions.
• ELIC AI-powered distributed power management platform for renewable energy operators and battery storage aggregators; performs power generation forecasting, wholesale market trading, and aggregation of solar, FIP-transitioned, and battery storage assets to maximize revenue.
• ELIC Charge EV charging station service operated by Sustech for electric vehicle charging infrastructure deployment, management, and optimization under the ELIC brand.
• Onsite PPA and Offsite PPA Services Power Purchase Agreement (PPA) services for renewable energy procurement, including Onsite PPA (rooftop solar at customer sites) and Offsite PPA models; recognized with the 2025 New Energy Award.
• Battery Aggregation Service Battery aggregation service for grid-scale and renewable-plus-storage battery assets, using AI-driven optimization (via the ELIC platform) to maximize revenue from wholesale market participation.
• FIP Transition Aggregation Service Aggregation service that supports solar and other renewable energy operators transitioning from Japan's legacy FIT scheme to the FIP (Feed-in Premium) market, optimizing revenue under the new regulatory framework.
• Sustech O&M Services Operations and maintenance (O&M) services for renewable energy power generation facilities and battery storage systems to ensure optimal performance, reliability, and longevity.
• Sustech GX Capital Fund business entity providing investment and financial services dedicated to Green Transformation (GX) projects and renewable energy development.
• Environmental Value and Carbon Credit Trading Environmental value and carbon credit trading facilitation service for enterprises, integrated with the CARBONIX platform to support decarbonization strategies and offset residual emissions.
• CARBONIX MEDIA Educational information media platform launched in December 2023 providing knowledge on GHG emissions calculation, Scope 1/2/3 reporting, carbon neutrality strategies, and decarbonization management for companies and sustainability beginners.

Quantifiable outcome

• Carbon neutrality support through integrated GHG calculation and renewable energy solutions

Named customers3 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature3 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Evergreen Group / Taiwan TPCTcoreStrategic or Co-development Partner · 1 July 2026PPA contract signed with Taiwan TPCT (Taiwan Provincial Cement Company), jointly held by Evergreen Group and others, for renewable energy procurement.
• Tokyo Electric Power Company Energy Partner (東京電力エナジーパートナー)coreGTM or Marketing Partner · 15 June 2026Strategic collaboration for 'Only One' carbon neutral support services targeting Tokyo EP's corporate customers. Sustech provides AI-powered ELIC platform and CARBONIX decarbonization solutions through this partnership.
• Daisei Warehouse Transportation (ダイセー倉庫運輸)minorStrategic or Co-development Partner · 1 July 2025PPA model partnership for installing rooftop solar power generation equipment at new logistics center in Komaki, with Sustech providing the PPA model operation and management.
• Tes Engineering (テス・エンジニアリング)minorStrategic or Co-development PartnerPartner company for joint seminar at Decarbonization Management EXPO 2026, providing expertise on renewable energy and battery utilization.
• GS Yuasa (株式会社GSユアサ)minorStrategic or Co-development PartnerPartner company for joint seminar at Decarbonization Management EXPO 2026, providing expertise on power supply operations and energy storage.
• Group Companies (株式会社Sustechエンジニアリングサービス, 株式会社ELIC Link, 株式会社ELIC Charge)coreOthersRelated group companies for joint use of personal information and integrated service delivery across the Sustech group.

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Market position

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 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 Sustech