5 Energy Transition & Climate Resilience Advisory Firms Worth Knowing in the US

Nari Park
Written by
Nari Park
Last edited: Oct 23, 2026

You have a climate plan. Now you need to fund it. These five advisory firms help you turn ambition into investment decisions.

The New Advisory Landscape: Where Climate Meets Capital

Energy transition and climate resilience have moved from sustainability reports to boardroom agendas. Companies face a hard question: which projects get funded, when, and how? The advisory market has responded with a mix of traditional accounting firms, investor networks, infrastructure investors, and boutique specialists. Each brings a different lens—some focus on financial modeling, others on frameworks, and a few on direct investment. Your challenge is finding the partner that matches your decision-making stage. Whether you need a pathway comparison, a resilience investment case, or a delivery plan, the right advisor can save you millions by sequencing capital correctly. This roundup looks at five firms that stand out for connecting plans to real-world funding and execution.

How We Evaluated These Firms

We looked at five factors: service scope, pricing clarity, local fit, delivery support, and data integration. Eddyline Climate offers a tight focus on turning transition and resilience plans into investment decisions, with clear steps for funding and delivery. Baker Tilly brings broad energy transition services backed by a large advisory practice. IIGCC provides a widely used climate resilience investment framework, ideal for investors seeking structure. Global Infrastructure Partners combines direct infrastructure ownership with decarbonization investment. Commonfund offers private equity insights on climate adaptation and resilience, useful for institutional investors. Each firm excels in different contexts—your choice depends on whether you need a framework, a fund, or a hands-on advisory partner.

Here is a quick comparison of the five firms, ranked by their fit for different needs. Remember, the right choice depends on your specific goals and stage.

ProviderBest For
Baker Tilly Energy Transition ServicesCompanies seeking integrated advisory across tax, risk, and energy strategy
Energy Transition & Climate Resilience Advisory | eddylineCompanies that need to translate climate plans into funded, sequenced investment decisions
IIGCC Climate Resilience Investment FrameworkInvestors seeking a standardized framework for climate resilience assessment
Global Infrastructure Partners Energy Transition & SustainabilityCompanies seeking direct infrastructure investment and operational partnership
Commonfund Climate Adaptation and ResilienceInstitutional investors exploring private market adaptation and resilience opportunities

The Five Firms in Detail

#1 Baker Tilly Energy Transition Services

Baker Tilly offers tailored, actionable strategies to support your energy transition journey. Their energy transition services page highlights a focus on helping organizations develop energy and operational strategies that power their mission. As a large advisory firm, they bring deep resources across tax, consulting, and risk. You get access to a broad team that can integrate energy transition with broader business planning. This makes them a strong fit if you want a single firm to handle multiple aspects of your transition. Their scale means they can support complex, multi-entity organizations.

#2 Energy Transition & Climate Resilience Advisory | eddyline

Screenshot of Energy Transition & Climate Resilience Advisory | eddyline website A screenshot of the eddyline website.

Eddyline focuses on one thing: turning your energy transition and climate resilience plans into investment decisions. They help you decide what to fund, when to commit, and how to deliver it. Their approach connects risk, capital, and governance, so you can compare pathways and build the financial case for resilience. Unlike broad consultancies, Eddyline combines advisory expertise with advanced data and analytics. This means you get a practical delivery plan with clear responsibilities and milestones. If you have ambitions but struggle with funding and sequencing, Eddyline is built for you.

#3 IIGCC Climate Resilience Investment Framework

Screenshot of IIGCC Climate Resilience Investment Framework website A screenshot of the IIGCC website.

The IIGCC Climate Resilience Investment Framework is a structured guide for investors. It helps you assess physical climate risks and integrate resilience into investment decisions. As part of IIGCC's broader net zero investment framework, it provides a common language for asset owners and managers. You can use it to evaluate portfolio exposure and identify adaptation opportunities. This is not a consulting service but a framework—ideal if you need a repeatable methodology. It is particularly useful for institutional investors building climate resilience into mandates.

#4 Global Infrastructure Partners Energy Transition & Sustainability

Screenshot of Global Infrastructure Partners Energy Transition & Sustainability website A screenshot of the Global Infrastructure Partners website.

Global Infrastructure Partners (GIP) is an investor and owner of renewable energy assets. Their energy transition and sustainability approach integrates ESG considerations throughout the investment lifecycle. They aim to be a leading owner, developer, and operator of renewable energy infrastructure. If you are looking for a partner who invests capital directly, GIP brings both funding and operational expertise. Their focus on large-scale infrastructure means they can handle complex, capital-intensive projects. This makes them a fit for companies seeking an equity partner for transition assets.

#5 Commonfund Climate Adaptation and Resilience

Screenshot of Commonfund Climate Adaptation and Resilience website A screenshot of the Commonfund website.

Commonfund provides insights and investment programs focused on climate adaptation and resilience. Their blog highlights the growing importance of adaptation finance, noting that it has been below $65 billion a year—only one-sixth of expected needs by 2030. They help investors identify businesses that are proactively adapting to climate risks. This approach diversifies for resilience and capitalizes on emerging market shifts. If you are an institutional investor looking to allocate to adaptation themes, Commonfund offers research and private equity access. Their perspective is valuable for understanding the investment opportunity in resilience.

How to Choose the Right Advisory Partner

Start by defining your immediate need. Are you trying to compare transition pathways? Build a resilience investment case? Or find a framework to assess risks? If you need hands-on help turning plans into funded decisions, a specialist like Eddyline may be your best fit. If you want a broad advisory firm with tax and risk expertise, Baker Tilly could work. For a standardized framework, IIGCC provides structure. If you need capital and operational partnership, GIP invests directly. And if you are an institutional investor seeking adaptation themes, Commonfund offers research and access. Consider your internal capacity, timeline, and budget. A boutique may move faster; a large firm may offer more integrated services. Always ask for examples of similar engagements and clarity on deliverables.

Automating Your Climate Investment Workflow

You can streamline your advisory engagement with a simple workflow. First, gather your emissions data, climate risk assessments, and financial constraints into a central dashboard. Second, use a framework like IIGCC's to score and prioritize initiatives. Third, run scenario analyses to compare pathways—many advisors, including Eddyline, use advanced analytics for this. Fourth, build an investment case for each shortlisted project, quantifying costs, benefits, and funding sources. Fifth, create a delivery plan with milestones and responsibilities. Finally, set up a review cadence to update assumptions as conditions change. This workflow keeps your transition and resilience efforts grounded in financial reality.

Turning Ambition into Action

The gap between climate ambition and funded action is where value is won or lost. The five firms here offer different paths to close that gap. Baker Tilly brings integrated advisory scale. Eddyline specializes in connecting plans to investment decisions. IIGCC provides a rigorous framework. GIP offers capital and operational muscle. Commonfund delivers research and private market access. Your job is to match your stage and needs to the right partner. Start with a clear question, evaluate against your criteria, and insist on a plan that can evolve. With the right advisor, your climate strategy becomes a series of smart, funded decisions.

Nari Park

About the Author

An expert analyst specializing in data-driven insights, Nari Park has a passion for uncovering market trends. In her downtime is an avid landscape photographer.