What Operational Energy Group does

Operational Energy Group India Limited (OEG) is a Chennai-headquartered, publicly registered industrial technology services company (CIN L40100TN1994PLC028309) founded in 2002 that delivers operations and maintenance, engineering, procurement and construction, and specialised water and renewable energy services to industrial clients in India and abroad. Its primary line of business is long-term, often performance-based O&M of power plants (independent power producers and captive power plants) and process plants in cement, metals and alloys, pulp and paper, chemicals and fertilizers, oil and gas, and textiles, with a stated portfolio of 4,000+ MW under maintenance supported by a 3,000+ employee workforce operating across 10+ countries including India, Indonesia, Thailand, the Philippines, UAE, Saudi Arabia, Lebanon, Bangladesh, Singapore, and the USA. Anchor clients include Tata Steel, UltraTech Cement, Vedanta, JSW Energy, IOCL, GAIL, APGENCO, Dalmia Cement, and TVS.

OEG monetises through multi-year managed services contracts (O&M, renewable O&M, water BOO/BOOT) and through discrete EPC project work via its OEG I&S turnkey vertical. The company has organised its offerings into five branded verticals — OEG O&M (asset operations), OEG I&S (turnkey EPC), OEG E&M (engineering and project management), OEG Green (wind and solar EPC/O&M), and OEG Blue (water technologies and emerging green hydrogen) — and operates several wholly-owned subsidiaries spanning solar energy (OEG Solar Energy), seawater desalination (South Ganga Waters), pharmaceuticals (OEG Pharma), engineering services (Maxitech Engineering), manufacturing (Sardev Friction Products), and regional operations (PT-OEG-Indonesia). Its go-to-market is direct enterprise field sales to industrial and infrastructure asset owners, supported by an investor relations portal and downloadable corporate brochures rather than broad consumer marketing.

Name

Operational Energy Group

Legal name

Operational Energy Group India Limited

Website

https://oegglobal.com

Company type

Public

Founded year

2002

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Operational Energy Group India Limited, founded in 2002 and headquartered in Chennai, provides operations and maintenance plus turnkey EPC services for power plants and process industries in India and 10+ other countries, serving enterprise clients such as Tata Steel, UltraTech, Vedanta, IOCL, and GAIL.

Ownership category

akta.pro rank

Product category

Industrial Operations and Maintenance Services

NAICS

Electric Power Generation (22111), Solar Electric Power Generation (221114), Electric Power Generation, Transmission and Distribution (2211)

SIC

Cogeneration Services & Small Power Producers (4991), Oil & Gas Field Services, Nec (1389)

akta.pro primary industry

Thermal Power Plant O&M (Coal, Gas, Oil) (EUAEAGAA)

akta.pro secondary industries

Renewable Energy Asset O&M (Wind, Solar, Hydro, Geothermal) (EUAEAGAB), Solar PV Power Plant EPC (Utility-Scale) (EUAEAAAG), Wind Power Plant EPC (Onshore/Offshore) (EUAEAAAF), Desalination Plant EPC, O&M & Performance Optimization (EUANAFAK)

Keywords

• Power plant operations maintenance
• Industrial EPC services
• Seawater desalination solutions
• Renewable energy projects
• Captive power plant services

Headquarters

HQ city

Chennai

HQ country

India

HQ region

Asia

Offices10 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Operations and Maintenance Services: O&M contracts for power plants (IPP, CPP), process plants (cement, chemicals, pulp & paper, textile, oil & gas, mining), and commercial buildings. Services include performance-based operation and maintenance or maintenance-only services on turnkey basis.
2. EPC (Engineering, Procurement and Construction): Turnkey solutions including project engineering, procurement, construction & commissioning for various industrial projects.
3. Green Energy Solutions: Wind and Solar EPC and O&M services including project development, engineering, procurement, construction and commissioning of utility scale mounted, rooftop, and solar park projects.
4. Water Treatment and Desalination: BOO, BOOT and customer-centric solutions for water supply including design, construction, and operation of seawater desalination plants and wastewater treatment plants through South Ganga Waters.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Operational Energy Group (OEG) provides operations and maintenance (O&M) services and turnkey engineering, procurement and construction (EPC) solutions for power plants, captive power plants, process plants, and industrial facilities. It also delivers renewable energy (wind and solar) EPC and O&M, water treatment and seawater desalination through its South Ganga Waters subsidiary, and manufactures friction products and pharmaceuticals through group companies. The company operates 4000+ MW of power assets with 3000+ employees across more than 10 countries.

Product overview

Operational Energy Group India Limited is a technology services company offering an integrated portfolio of operations and maintenance (O&M), engineering and construction (EPC/I&S), and specialized technology solutions across power, process, water, and manufacturing sectors. The company operates through distinct verticals: OEG O&M provides comprehensive plant operations and maintenance; OEG I&S delivers turnkey EPC solutions; OEG E&M offers engineering and project management; OEG Green covers wind and solar renewable energy; OEG Blue provides water technologies including desalination and green hydrogen. The portfolio also includes manufacturing of friction products and group companies in pharma (OEG Pharma) and water treatment (South Ganga Waters). The company operates 4000+ MW with 3000+ employees across multiple countries.

Differentiator

Problem solved

Functional benefit

Brands

• OEG Green: Green Energy - Wind and Solar EPC & O&M Solutions
• OEG Blue
• OEG O&M
• OEG I&S
• OEG E&M

Products and services

• OEG O&M (Operations and Maintenance) Comprehensive operations and maintenance services for power plants, process plants, buildings and factories, mining operations, and waste-to-energy facilities offered through flexible performance-based or maintenance-only contract arrangements for industrial clients.
• OEG I&S (Industry and Solutions) - Turnkey EPC

Quantifiable outcome

• Portfolio of over 4000 MW of projects
• +3 more outcomes

Named customers15 records

Segments9 records

Ideal customer profiles5 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 core and minor.

• Enma Pharmaceuticals LimitedcoreStrategic or Co-development PartnerOEG Pharma was established through collaboration between OEG India Limited and Enma Pharmaceuticals Limited. Enma Pharmaceuticals serves the Indian market with tablets, capsules, and liquids. OEG Pharma provides international quality pharmaceutical products globally.
• Rockfort Engineering IndustriesminorChannel Partner/ Reseller/ DistributorSardev Friction Products Private Limited is a channel partner of Rockfort Engineering Industries. Sardev manufactures electromagnetic inner clutch plates, transmission clutch plates, and thrust washers in Chennai.
• South Ganga Waters Technologies Pvt. Ltd.coreStrategic or Co-development PartnerSouth Ganga is a group company specializing in Water Treatment and Desalination Services. Has unique design, supervision, operation, maintenance and troubleshooting experience in Reverse Osmosis seawater Desalination. Operates 1 MLD facility in Ramanathapuram (since 2005) and 10 MLD facility in Tuticorin (since 2012).
• OEG Solar Energy Private LimitedcoreStrategic or Co-development PartnerGroup company focused on solar energy solutions as part of OEG's green energy vertical.
• Pacific Supplies Private LtdminorOthersGroup company listed on OEG's group companies page with no additional details available.
• Maxitech Engineering Pvt. Ltd.minorOthersGroup company with external website at maxitechengineering.com. Nature of partnership not detailed on OEG website.
• PT-OEG-IndonesiacoreOthersOEG's subsidiary operation in Jakarta, Indonesia providing regional presence in Southeast Asia.
• ZuppaOeg Gen5minorOthersGroup company listed with no additional details available.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Tata Projects: EPC arm of the Tata Group executing power, water, and industrial infrastructure projects for many of the same heavy-industry clients (including Tata Steel), making it a direct competitor for OEG's captive-power and process-plant mandates.
• Thermax: Indian EPC and O&M provider for power plants, captive power, and process industries including cement, steel, and chemicals — directly comparable service mix and end customers to OEG's I&S and O&M verticals.
• VA Tech Wabag: Pure-play water and desalination EPC + O&M specialist with strong presence in India and the Middle East, directly comparable to OEG's South Ganga Waters desalination vertical and adjacent to its broader water strategy.

Broad incumbents

• Reliance Infrastructure: Diversified Indian infrastructure conglomerate with EPC capabilities across power, roads, and metro — competes for large industrial and utility-scale power contracts that overlap with OEG's EPC vertical.
• KEC International: Indian EPC major in power transmission and distribution, substation, and renewables — overlaps with OEG's I&S power-generation and distribution sub-vertical and competes for utility-side mandates.
• GMR Group (GMR Energy): IPP operator with significant captive and merchant thermal capacity in India, overlapping with OEG's IPP O&M customer set and providing both partnership and competitive dynamics.
• BHEL: State-owned power equipment manufacturer and EPC contractor with a large installed base of thermal power plants requiring long-term O&M — competes for service contracts that overlap with OEG's IPP/CPP O&M business.
• Larsen & Toubro (L&T) – Power & Process: India's largest EPC conglomerate with deep capabilities in thermal power, renewables, and water — competes head-on with OEG for large turnkey industrial contracts while operating at materially greater scale.

Regional players

• Sterlite Power: India-focused power transmission infrastructure developer and services provider — adjacent to OEG's EPC capabilities in transmission, substations, and large industrial electrification projects.

Emerging players

• Triveni Engineering & Industries: Indian engineering group with power-generation and water businesses that competes for mid-sized industrial O&M and EPC contracts in segments overlapping with OEG's process-plant portfolio.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/oegglobal

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries8 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 Operational Energy Group