Solidaris

What Solidaris does

Solidaris, LLC is a privately held holding company domiciled in Rockville, Maryland that provides overall management, marketing, and financial support for two wholly-owned operating subsidiaries engaged in international energy infrastructure: Global Management Partners, LLC (GMP) and Princeton Energy Resources International, LLC (PERI). GMP focuses on power project development, procurement services management, and financing and debt/equity sourcing, with personnel who have pioneered Build-Own-Operate (BOO) and Build-Own-Operate-Transfer (BOOT) project financing schemes in developing world markets. PERI is a technology engineering and management consulting firm providing energy, power, and environmental management expertise to government agencies, multilateral financial institutions, and private sector clients, including feasibility studies, construction management, environmental review, Owner's Engineer and Bank's Engineer representation, and renewable and fossil power generation advisory.

The firm's underlying technical capabilities span advanced, gas, oil, and coal-fired generation plus renewables (wind, biomass, geothermal, solar PV, solar thermal) and solid fuel conversion (gasification, syngas-to-liquid fuels), supported by a proprietary FATE-2 financial analysis model used at DOE and other U.S. research laboratories and integrated Environmental Management System / Pollution Prevention expertise. Business model is professional services fee-based: project development fees, procurement service fees, financing arrangement fees, and engineering/technical consulting fees collected through direct senior-partner engagement with enterprise clients. Customer segments include private infrastructure developers using BOO/BOOT financing, government agencies requiring institutional capacity building and sector reform, bilateral and multilateral financial institutions (World Bank, IFC, US Ex-Im Bank, OPIC, IDB), and private sector energy companies. The firm operates globally with project execution in Pakistan, Oman, Tunisia, Colombia, Venezuela, and Bolivia, and reports over $5 billion in cumulative infrastructure projects developed and over 7,000 MW of generation projects managed across the founders' careers.

Name

Solidaris

Legal name

Solidaris, LLC

Website

https://solidarisllc.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Solidaris, LLC is a Rockville, Maryland holding company for two subsidiaries — Global Management Partners and Princeton Energy Resources International — that provide power project development, procurement, financing arrangement, and engineering consulting services to governments, multilateral financial institutions, and private energy clients in developing markets worldwide.

Ownership category

akta.pro rank

Product category

Energy Infrastructure Consulting

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413), Management of Companies and Enterprises (5511)

SIC

Oil & Gas Field Services, Nec (1389), Crude Petroleum & Natural Gas (1311)

akta.pro primary industry

Development Management & Owner’s Engineering (Design Basis, Yield, Technical Due Diligence) (EUAMAAAG)

akta.pro secondary industries

Project Finance & Capital Structuring (Debt/Tax Equity/Project Bonds) (EUAMAAAD), Commercial Structuring & Offtake (PPAs, CfDs, Corporate PPAs, Merchant Strategy) (EUAMAAAE), Permitting, Environmental & Stakeholder Engagement (EIA/ESIA, Community Relations) (EUAMAAAB), Solar Project Development & IPP (Utility-Scale & Rooftop) (EUAMABAA)

Keywords

• Energy project development
• Power project financing
• Infrastructure consulting
• Environmental management services
• Construction management services

Headquarters

HQ city

Rockville

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Project Development Services: Fees from developing energy projects from concept to reality including project identification, structuring, negotiation and coordination of project agreements, and overall project management.
2. Procurement Services: Fees for procurement of major equipment for power projects including gas turbines, transformers, balance of plant equipment, as well as erection and commissioning support through technical assistants.
3. Financing Arrangement Services: Fees for arranging both conventional and alternative financing for infrastructure projects, including debt and equity sourcing, liaison with financial institutions, tax structuring, and financial analysis.
4. Engineering and Technical Consulting: Fees for engineering, technical, economic, policy, and regulatory consulting services to government agencies, financial institutions, and private sector clients including feasibility studies, environmental reviews, construction management, and sector reform.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels2 records

Core offering

Solidaris, LLC is the holding entity for energy project development companies — primarily Global Management Partners (GMP) and Princeton Energy Resources International (PERI). Through GMP it delivers power project development, procurement services management, and financing/debt-equity sourcing (including pioneering BOO/BOOT structures in developing world markets). Through PERI it delivers engineering, technical, economic, policy, regulatory, environmental management, and construction management consulting to government agencies, bilateral/multilateral lenders, and private sector clients worldwide.

Product overview

Solidaris, LLC is a holding company that provides overall management, marketing, and financial support for its two subsidiary divisions: Global Management Partners, LLC (GMP) and Princeton Energy Resources International, LLC (PERI). GMP handles power project development, procurement services management, and financing services. PERI provides technology engineering and management consulting services for energy and environmental projects. Together, these divisions offer a comprehensive suite of services spanning project identification, structuring, negotiation, financing, procurement, construction management, and environmental consulting for energy projects worldwide.

Differentiator

Problem solved

Functional benefit

Products and services

• Power Project Development Services End-to-end development of private power infrastructure projects from concept to financial close and execution, including project identification, structuring and negotiation of project agreements, financing arrangement, and overall project management. Targeted at private infrastructure developers and sponsors in developing world markets.
• Procurement Services Management Procurement of major equipment for power projects (gas turbines, transformers, iso phase buses, chimneys, valves, water treatment systems, electrical components, balance-of-plant equipment) along with vendor Technical Assistants for erection and commissioning. Delivered for power plant projects in South America (Venezuela, Bolivia).
• Financing Arrangement Services Arrangement of conventional and alternative financing for infrastructure projects, including debt and equity sourcing, liaison with financial institutions, tax structuring, and financial analysis. Targets developers needing sophisticated project finance including limited-recourse co-financing from multilateral lenders.
• Engineering and Technical Consulting Services (PERI) Energy, power, and environmental management consulting covering feasibility studies, power sector economics, construction management, environmental management, restructuring and reform, and renewable and fossil-based power generation technology applications. Delivered to government agencies, bilateral and multilateral financial institutions, and private sector clients.
• Environmental Management and Pollution Prevention (EMS/P2) Services Engineering-based environmental compliance services including integrated Environmental Management System (EMS) and Pollution Prevention (P2) program design and implementation, environmental forensics, and expert witness services on environmental litigation. Targeted at government agencies and private sector clients with environmental compliance obligations.
• Owner's Engineer / Bank's Engineer Representation Independent engineering representation on behalf of project owners and lenders, including due diligence, feasibility evaluations, environmental assessment, construction management/inspection services, and systems operation oversight. Targets private and government-owned utilities and major financial institutions.

Quantifiable outcome

• Over $5 billion of infrastructure projects developed worldwide
• +2 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Six partnerships are on record, tiered core.

• Westinghouse Electric CorporationcoreTechnology or IntegrationLeading power generating contractor providing equipment and project implementation support for GMP-developed power projects. Relationship provides foundation for successful project implementation.
• Marubeni CorporationcoreTechnology or IntegrationJapanese trading company providing power generation equipment and project implementation support. Relationship provides foundation for successful project implementation.
• Mitsui & Co. Ltd.coreTechnology or IntegrationJapanese trading company providing power generation equipment and project implementation support. Relationship provides foundation for successful project implementation.
• Ishikawajima-Harima Heavy Industries Co., Ltd. (IHI)coreTechnology or IntegrationJapanese heavy industries company providing power generation equipment and project implementation support. Relationship provides foundation for successful project implementation.
• Siemens Power CorporationcoreTechnology or IntegrationLeading power generation equipment provider providing equipment and project implementation support. Relationship provides foundation for successful project implementation.
• Daelim Engineers & Construction of KoreacoreTechnology or IntegrationKorean engineering and construction company providing project implementation support. Relationship provides foundation for successful project implementation.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• K&M Engineering & Consulting Corporation: Engineering and consulting firm where Solidaris founders Adolfo Menéndez and Kirit Parikh previously served as President and Senior Vice President. GMP spun out of K&M, and the two firms continue to compete and collaborate on emerging-market power project mandates.
• Castalia Advisors: Boutique international advisory firm specializing in infrastructure finance, public-private partnerships, and utility regulation in emerging markets. Closely comparable to Solidaris/GMP for project finance structuring and policy advisory on developing-country power projects.
• Mott MacDonald: International engineering and development consultancy with strong power and renewables advisory practices serving MDBs and emerging markets. Comparable to PERI's Owner's Engineer and feasibility studies work, and competes directly for IFI-financed mandates.

Broad incumbents

• Bechtel Corporation: One of the largest global EPC contractors for power and infrastructure. Solidaris' founder Adolfo Menéndez was previously Senior Project Manager for International Operations at Bechtel Power Corporation. Bechtel competes with GMP on large BOO/BOOT power project delivery and offers end-to-end EPC that Solidaris orchestrates through partners.
• Black & Veatch: Global engineering, procurement, and construction firm with substantial power generation and Owner's Engineer practices. Competes with Solidaris/PERI for Bank's Engineer and Owner's Engineer mandates on utility-scale power projects, particularly those financed by MDBs.
• WSP Global: Major international engineering consultancy with power, energy transition, and project finance advisory capabilities. Competes with Solidaris for Owner's Engineer roles on large power generation projects globally.
• AECOM: Global infrastructure consulting firm with extensive power generation and environmental practices serving emerging markets. Comparable to PERI for Owner's Engineer and environmental assessment work on MDB-financed projects.
• Tetra Tech: Global consulting and engineering firm focused on water, environment, and sustainable infrastructure including renewable energy advisory. Comparable to PERI for environmental management, feasibility studies, and renewable energy consulting, especially on MDB-funded projects.

Others

• McKinsey Energy Practice: Global management consultancy with a major energy and power sector advisory practice serving utilities, developers, and ministries on strategy, restructuring, and transactions. Comparable to PERI for power sector reform and economic consulting work.
• International Finance Corporation (IFC) Advisory Services: World Bank Group's private-sector development arm and a core client of PERI for Owner's Engineer and technical advisory mandates. Functions both as a customer and as an in-house competitor for upstream project development advisory in emerging markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/solidaris-intl

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

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 Solidaris