Meralco Industrial Engineering Services Corporation

Name

Meralco Industrial Engineering Services Corporation

Legal name

Meralco Industrial Engineering Services Corporation

Website

https://miescor.ph

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

1,001–5,000 employees

Ownership category

akta.pro rank

Product category

Power Infrastructure Engineering Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Electric Power Transmission, Control, and Distribution (22112), Solar Electric Power Generation (221114), Wind Electric Power Generation (221115), Electric Power Distribution (221122)

SIC

Electric Services (4911), Communications Services, Nec (4899), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Electrical Balance-of-Plant EPC (MV Collection, Cabling, Earthing, Lighting) (EUAEADAB)

akta.pro secondary industries

Substation EPC (AIS/GIS) & Switchyard Construction (EUAEABAC), Distribution Substations & Switching Stations (MV) EPC (EUAEACAC), Telecom, SCADA & OPGW/Fiber Integration for T&D Projects (EUAEABAG), Utility-Scale Power Generation Asset Management (EUAEAMAA)

Keywords

• Engineering procurement construction
• Power transmission infrastructure
• Renewable energy EPC
• Telecommunications infrastructure
• Distribution utility services

Headquarters

HQ city

New Manila

HQ country

Philippines

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. EPC Project Contracts: Engineering, Procurement, and Construction contracts for power transmission lines, substations, renewable energy facilities (solar, wind, BESS), and telecommunications infrastructure. Revenue recognized over project duration based on percentage-of-completion. Single largest revenue driver.
2. Distribution Utility Services (DUS): Manpower and project execution services supporting utility operations including distribution line construction, substation maintenance, vegetation management, metering services, and sub-transmission line construction. Provided to Meralco and other utility clients.
3. Telecommunications Services: Design, construction, installation, and maintenance services for telecom networks including tower construction, fiber optic deployment, equipment installation, testing and commissioning, and passive support services.
4. Utility Attachment Management (UAM): Oversight of third-party attachments on distribution poles for Meralco, including evaluations, audits, pole clearing, low-sag correction, and alley arm installation to ensure safety and compliance.
5. Trading (Equipment Supply): Supply and delivery of energy-efficient equipment and solutions including substations, transmission and distribution equipment from world-class manufacturers, serving primarily Meralco as principal client.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

MIESCOR provides end-to-end Engineering, Procurement, and Construction (EPC) services for high-voltage power transmission lines (up to 500kV), substations, utility-scale solar, wind and BESS renewable energy plants, and telecommunications infrastructure. It complements these with Distribution Utility Services (manpower and operations support for utilities), Utility Attachment Management (oversight of third-party attachments on distribution poles), and Trading of energy-efficient electrical equipment, serving enterprise clients led by its parent Manila Electric Company (Meralco).

Product overview

MIESCOR is a diversified engineering and construction services company organized around five core service lines: Engineering, Procurement, and Construction (EPC), Telecommunications Services, Distribution Utility Services (DUS), Utility Attachment Management (UAM), and Trading. The company operates three wholly-owned subsidiaries—Miescor Builders Inc. (MBI) focused on construction and maintenance, Miescor Logistics Inc. (MLI) providing logistics and facilities services, and Customer Frontline Solutions (CFS) delivering customer solutions including a proprietary HRIS system. The EPC division handles large-scale power infrastructure projects including solar power plants, wind farms, transmission lines, and substations. The Telecommunications unit provides end-to-end telecom infrastructure services. DUS supports utility operations with manpower and project execution, while UAM manages third-party attachments on distribution poles. Trading supplies energy-efficient equipment and products for power infrastructure. The company is engaged as EPC contractor for the MTerra Solar Project—recognized as the world's largest integrated solar and battery storage project—with scope including substations and 230kV transmission line interconnection facilities.

Differentiator

Problem solved

Functional benefit

Products and services

• Engineering, Procurement, and Construction (EPC) End-to-end EPC services for power transmission lines (up to 500kV), substations, and renewable energy facilities including solar, BESS, wind, hydro, and flywheel projects. Covers feasibility studies, detailed engineering, procurement, construction, testing, commissioning, and long-term operations and maintenance. Targets utility companies, power developers, and renewable energy IPPs.
• Telecommunications Services End-to-end telecommunications infrastructure solutions including site acquisition, network planning and design, civil works, tower construction, fiber optic network deployment, IP-based equipment installation (SAR-8, NSP, SCADA, teleprotection), testing, commissioning, and operations and maintenance. Targets telecom operators such as PLDT/Smart and Meralco's internal telecom needs.
• Distribution Utility Services (DUS) Manpower solutions and project execution supporting utility operations, including facilities inspection, engineering design and maintenance, data management, metering services, sub-transmission line construction (e.g., 69 kV uprating), and revenue protection. Currently manages 23 active projects for Meralco and other utility clients.
• Utility Attachment Management (UAM) Oversight of third-party attachments on distribution poles ensuring telecom and cable installations meet safety and compliance standards. Services include request-to-attach evaluations, pole inventory, alley arm installation, low-sag cable correction, pole clearing operations, and anti-urban blight initiatives. Offered primarily to Meralco and extended as a BPO model to other utilities such as Negros Power.
• Trading Supply and delivery of energy-efficient equipment and products for substations, transmission, and distribution systems. Products include barrel locks, cable accessories, capacitor units, steel poles, GIS systems, meters, line fittings, lithium batteries, rectifier cabinets, ring main units, substation automation, and terminating kits.
• Miescor Builders Inc. (MBI) Wholly-owned construction subsidiary of MIESCOR providing general engineering, consulting, construction, and maintenance services specializing in electrical and mechanical facilities and infrastructure, including distribution line and substation maintenance, civil construction, and testing and commissioning.
• Miescor Logistics Inc. (MLI) Wholly-owned logistics and services subsidiary offering general services, facilities management, transportation and fleet management, warehousing, and construction and renovation services for MIESCOR's projects and external clients.
• Customer Frontline Solutions (CFS) Customer solutions provider offering contact center services, document management, people-on-demand outsourcing, permits and taxes processing, and a proprietary HRIS system. Positions itself as a preferred provider of outsourced tellering, frontline customer services, and customer solutions in the Philippines.

Quantifiable outcome

• MTerra Solar Phase 1 energized March 14, 2026, supplying 85 MW of mid-merit power
• +5 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered minor, core and flagship.

• One Meralco FoundationminorStrategic or Co-development Partner · 1 June 2026Following the 7.8-magnitude earthquake in General Santos, MIESCOR joined hands with One Meralco Foundation to deliver humanitarian relief to affected communities. MIESCOR deployed trucks and mobilized volunteers from its Davao solar project team to transport and distribute essential goods (tents, hot meals, clean drinking water) to hospitals and affected families, demonstrating CSR commitment beyond infrastructure development.
• PLDT Enterprise / Smart Communications Inc.coreTechnology or Integration · 17 March 2025MIESCOR and PLDT Enterprise, through Smart Communications Inc., partnered to enhance connectivity and efficiency across critical energy and infrastructure projects nationwide. Smart's 5G mobile and data solutions enable seamless coordination, real-time monitoring, and improved safety for MIESCOR field personnel, engineers, and project teams working even in remote locations. The collaboration strengthens both MIESCOR's operations and Smart's mission to provide reliable connectivity.
• Negros PowercoreStrategic or Co-development Partner · 4 July 2024MIESCOR and Negros Power engaged in a productive, future-focused discussion on utility transformation. MIESCOR proposed its Utility Attachment Management (UAM) Business Process Outsourcing model—shaped by Meralco's real-world experience in resolving tangled and unsafe wire configurations—to enhance public safety, streamline utility operations, and unlock new efficiencies. Both teams aligned on innovation and smarter utility solutions.
• Manila Electric Company (Meralco)flagshipOthers · 1 December 1973Meralco Industrial Engineering Services Corporation (MIESCOR) was incorporated in December 1973 as a wholly owned subsidiary of Manila Electric Company (Meralco)—the Philippines' largest electric distribution utility. MIESCOR operates as Meralco's technical and back-end support arm, providing EPC, construction, and operations services. Meralco provides financial backing, strategic direction, and client referrals. The majority of MIESCOR's Board of Directors also serve on the Meralco Board.

Scale indicators14 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• EEI Corporation: Philippine-based diversified EPC contractor with capabilities across power, industrial, and infrastructure projects. Directly comparable to MIESCOR given similar Philippines-centric EPC focus, overlapping customer base (utilities, developers), and PCAB AAAA contractor status.
• Aboitiz Construction: Philippine EPC contractor affiliated with the Aboitiz group, active in power, industrial, and infrastructure construction. Comparable to MIESCOR on Philippines-domestic EPC work, particularly in the power and renewable segments.

Regional players

• First Balfour / First Gen Group Construction Arm: Philippine construction and EPC arm associated with First Gen Corporation, focused on power generation and energy infrastructure projects. Comparable on renewable and conventional generation EPC capability within the Philippine market.
• NGCP (National Grid Corporation of the Philippines): Philippine transmission system operator and a key MIESCOR client. Comparable as a regional grid counterpart for understanding the demand-side dynamics of Philippine T&D infrastructure spending that drives MIESCOR's EPC pipeline.

Broad incumbents

• Quanta Services: US-based largest specialized contracting services firm focused on electric power, oil & gas, and telecommunications infrastructure. Comparable on utility-scale transmission, substation, and renewable interconnection EPC, with much larger scale and geographic reach than MIESCOR.
• MasTec: US infrastructure construction company with significant exposure to utility power, communications, and clean energy EPC. Comparable on transmission, substation, and renewable EPC services with similar project-based revenue model.
• MYR Group: US-based specialty contractor focused on electrical construction (T&D, substation, commercial) with renewable energy EPC exposure. Comparable business model around utility-grade electrical EPC and project-based execution.
• AECOM: Global infrastructure consulting and EPC firm with significant power and renewables practice. Comparable as a global incumbent competing for large-scale transmission and renewable interconnection EPC mandates of the type MIESCOR wins.

Others

• Prysmian Group: Global cable manufacturer and EPC provider for power transmission and telecom infrastructure. Comparable as adjacent participant in the same value chain where MIESCOR executes transmission line and substation builds using Prysmian-style conductors and OPGW.
• Hitachi Energy: Global provider of substations, HVDC/FACTS systems, and grid automation equipment. Comparable on high-voltage substation EPC technology used in MIESCOR's 500kV and 230kV transmission line and substation projects (e.g., GIS, SCADA).

Market position

Strengths1 record

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/onemiescor
• LinkedInlinkedin.com/company/miescor
• Instagraminstagram.com/onemiescor

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles23 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 Meralco Industrial Engineering Services Corporation