DECARB

What DECARB does

DECARB LLC is a Pittsburgh-headquartered professional services firm founded in 2019 by four industry veterans — Thomas J. Kalup, Mark Mellana, Michael C. Salmon, and Enzo M. Zoratto — who between them hold more than 120 years of experience across power generation, environmental management, M&A and project finance. The firm serves owners, investors, and lenders of fossil fuel generation assets who need to transition, repower, repurpose, or close coal, oil, and gas plants while managing environmental liabilities and regulatory obligations. Its customer base is segmented into six verticals: municipal utilities and generation cooperatives, independent power producers (IPPs), financial owners facing ESG-driven coal exits, infrastructure investors seeking grid interconnection assets, regulated investor-owned utilities, and industrial owners with captive fossil generation.

DECARB delivers an integrated suite of six service lines: Strategic Consulting (independent analysis and proprietary modeling of transition options), ESG Strategies (goal quantification and measurement), Transition Management (procurement, construction management, environmental closure, and regulatory negotiation), Decarbonization & Repurposing (highest-and-best-use analysis for power infrastructure), Transaction Support (due diligence and deal structuring), and Asset Acquisition (direct purchase of impaired portfolios with full statutory and environmental liability assumption in perpetuity). The technical core of the firm is a proprietary probabilistic cost-risk modeling capability using decision tree and Monte Carlo simulation, applied by Dr. Joseph Yeasted across 40 environmental liability transfer contracts covering $550M in remediation obligations and reportedly producing a nine-figure settlement value differential on a California Remedial Action Order.

The firm operates as an enterprise field sales motion with direct engagement to senior executives, boards, and large institutional counterparties; pricing is quote-based and negotiated per engagement across professional services fees and transaction-related economics. Geographically, DECARB serves the United States and Canada as its core market, with select international mandates (a $320M 50 MW waste-to-energy project with the Government of Haiti and a 14 MW biomass/biogas project in Jamaica). The ownership structure is closely held by the four founding managing partners, with no external investors, parent company, or disclosed funding rounds identified in the source data, and no financial reporting entities (no funding rounds, no revenue disclosure). Customer evidence supports multi-segment coverage through marquee engagements such as a 1,650 MW three-unit supercritical coal plant closure and repositioning in PJM, a 9,300 MW merchant generation portfolio across PJM/MISO/CAISO/SPP/ERCOT/ISO-NE/NYISO, and brownfield remediation work for ASARCO and a multinational aluminum producer.

Name

DECARB

Legal name

DECARB LLC

Website

https://decarbllc.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

Boutique Pittsburgh-based professional services firm founded in 2019 by four power-industry veterans, helping utilities, IPPs, financial owners, infrastructure investors, and industrial owners transition, repower, repurpose, or close fossil fuel power plants across the United States and Canada.

Ownership category

akta.pro rank

Headquarters

HQ city

Pittsburgh

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Strategic Consulting Services: Independent analysis and strategic planning for asset owners seeking to decarbonize and reposition fossil fuel power generation assets. Includes ESG strategy development, transition planning, and regulatory compliance advisory.
2. Transaction Support and Due Diligence: Due diligence, deal structuring, and transaction support for acquisitions, divestitures, and restructuring of power generation assets and environmental liabilities.
3. Asset Acquisition: Direct acquisition of coal generation assets and portfolios with assumption of environmental liabilities, enabling clients to achieve immediate financial and ESG benefits through clean exit structures.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

DECARB provides strategic consulting, environmental liability management, and asset acquisition services for owners and investors of fossil fuel power generation assets. Its core offerings span independent analysis and proprietary modeling for decarbonization strategy, end-to-end transition management including plant wind-down and closure, transaction due diligence and deal structuring, decarbonization and repowering planning, ESG strategy development, and direct acquisition of coal and fossil generation assets with full assumption of long-term environmental liabilities.

Product overview

DECARB offers a suite of professional consulting services for decarbonizing fossil fuel power generation assets. The company's offerings are organized around six core service areas: Strategic Consulting (independent analysis and proprietary modeling), ESG Strategies (goal-setting and measurement frameworks), Transition Management (end-to-end execution of asset transitions), Decarbonization & Repurposing (highest-and-best-use analysis), Transaction Support (due diligence and deal structuring), and Asset Acquisition (full liability assumption). These services are delivered as an integrated, turnkey solution to help plant owners and investors navigate asset transitions.

Differentiator

Problem solved

Functional benefit

Products and services

• Strategic Consulting Independent analysis and strategic planning for energy transition, including proprietary modeling that identifies benefits and risks of various approaches to decarbonization. Targeted at energy asset owners and investors seeking to reposition fossil fuel power generation assets.
• ESG Strategies Establishes and quantifies ESG goals and metrics for measuring success, evaluating impacts of business processes related to energy generation and infrastructure repurposing. For organizations seeking measurable sustainability outcomes from asset transitions.
• Transition Management End-to-end management of plant transition strategy including wind-down of operations, procurement, construction management, environmental closure, and regulatory negotiations. For utility and power generation owners executing full plant closures or conversions.
• Decarbonization & Repurposing Determines highest and best use alternatives for existing power infrastructure assets by analyzing grid operations, interconnection rights, renewable generation and storage potential, and alternative-use options. For owners evaluating brownfield conversion, repowering, or site redevelopment opportunities.
• Transaction Support

Quantifiable outcome

• Over 400 Independent Engineering reviews completed on power generation and energy assets
• +4 more outcomes

Named customers7 records

Segments6 records

Ideal customer profiles7 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• ICF International: Consulting firm with a dedicated energy and climate practice serving utilities, IPPs, and regulators. Comparable to DECARB on decarbonization strategy, ESG advisory, and energy transition planning, though serving a broader policy and regulated-utility client base.
• Sargent & Lundy: Engineering firm specializing in power generation and energy infrastructure. Overlaps with DECARB on plant decommissioning, repowering studies, environmental services, and independent engineering reviews for power generation assets.
• ArcLight Capital Partners: Private equity firm specializing in power generation and energy infrastructure investments. Comparable to DECARB in evaluating, transacting, and managing fossil fuel and transitional generation assets, but operates as a buy-side investor rather than a strategic advisor.
• Riverstone Holdings: Private equity firm focused on energy and energy transition investments. Comparable to DECARB's PE-facing transaction support and asset acquisition business, though Riverstone operates strictly as a capital provider rather than a strategic advisor or asset acquirer of distressed coal assets.
• Haley & Aldrich: Environmental and geotechnical engineering consultancy with strong power and energy sector practice. Directly comparable to DECARB's environmental liability, brownfield redevelopment, and asset due diligence offerings, but with broader industry coverage and larger headcount.
• Energy Capital Partners: Private equity firm focused on power generation, energy infrastructure, and energy transition assets. Similar to DECARB in deep domain focus on generation portfolios and asset transitions, but operates from a capital deployment rather than advisory and asset acquisition model.
• Burns & McDonnell: Engineering, architecture, and consulting firm with a substantial power generation and environmental services practice. Comparable to DECARB in providing decommissioning, repowering, environmental, and asset transition services to utility and IPP clients.

Broad incumbents

• Macquarie Asset Management: Global infrastructure investor with significant power generation and energy transition exposure. Comparable to DECARB on infrastructure investor client overlap and grid-connected asset transaction support, but operates as a large-scale institutional investor rather than a niche transition advisor.
• ERM (Environmental Resources Management): Global environmental and sustainability consultancy with a dedicated energy transition practice. Comparable to DECARB in providing environmental due diligence, remediation strategy, and ESG advisory to power generation clients, but operating at vastly larger scale across multiple industries and geographies.
• AECOM: Global infrastructure consulting firm with a large environmental services and power generation practice. Overlaps with DECARB on plant decommissioning, environmental remediation, brownfield redevelopment, and asset transition advisory, but serves a much broader portfolio of engineering and infrastructure work.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/decarb-llc

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 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 DECARB