25⁺

Years Experience

800⁺

Projects Completed

4000⁺

Global Experts

Energy & Industrial Sector Specialists

Practical insight.
Unlock growth.

Deep sector expertise across energy, industrials, infrastructure and marine — delivering strategy, diligence, and advisory that creates real-world value.

Our Services About Calash

Calash is an international diligence provider and strategy consultancy combining seasoned commercial expertise with deep technical knowledge — delivering value-add transaction and growth strategy advice across the energy transition and industrial sectors.

About Calash

Seasoned expertise across 25 years of complex challenges

We put ourselves in your shoes — questioning everything to get to the real answers and provide practical opinion. Our team harnesses commercial and technical expertise to support businesses both strategically and during a deal.

Working primarily across energy, industrials, infrastructure, technology, and marine markets, our highly knowledgeable team takes a hands-on approach, delivering concise, tailored outputs that are both pragmatic and commercial.

We have completed over 800 projects in commercial, technical, ESG, and operational due diligence, business strategy, market advisory, and restructuring — working with private and publicly owned businesses across the globe.

About us

What We Do

Our capabilities

All services

Research

Rigorous, proprietary market research providing decision-critical intelligence across energy, industrial, and infrastructure sectors globally.

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Strategy

Practical, straight-talking growth strategies that enable businesses to realise value effectively and navigate rapidly evolving markets.

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Diligence

Commercial, technical and ESG due diligence underpinned by 800+ completed projects — giving investors and acquirers the confidence to act.

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Environment

ESG advisory, climate strategy, and environmental assessment for the energy transition — from renewables and storage to green industrial transformation.

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Sector Focus

Unrivalled experience across energy & industry

Close to 25 years of deep, hands-on expertise across the sectors driving the global energy transition, industrialisation, and infrastructure buildout.

Heating & Energy

District heating, heat networks, gas, hydrogen and conventional energy systems

Renewables

Wind, solar, hydro, biomass and hybrid renewable technologies

Energy Storage

Battery, LDES, pumped hydro and grid-scale storage solutions

ClimateTech

Carbon capture, clean fuels, climate analytics and decarbonisation platforms

Green Economies

Green hydrogen, sustainable finance, circular economy and impact investing

Industrials & Manufacturing

Industrial decarbonisation, advanced manufacturing and process optimisation

Infrastructure

Energy infrastructure, utilities, transport and critical national infrastructure

Chemicals

Specialty chemicals, petrochemicals, agrochemicals and chemical processing

Marine & Ports

Maritime operations, offshore energy, port logistics and marine technology

Technology

Energy software, digital infrastructure, IoT and industrial technology platforms

Defence

Defence-aligned industrial, maritime and critical infrastructure systems

Environment & ESG

Environmental compliance, impact assessment and ESG due diligence

25⁺

Years of sector expertise in energy and industrial markets

800⁺

Projects completed in diligence, strategy, and advisory

Global offices — London, Aberdeen, Sofia and beyond

4k⁺

Global network of sector specialists on call worldwide

Our Approach

Been there. Seen it. Done it.

Hands-on senior expertise

Our senior team has first-hand experience of founding, running and monetising their own businesses in the sectors we advise on.

Data-led market analytics

We pair deep sector knowledge with rigorous data analysis to overcome challenges, identify market opportunities, and target growth.

Global reach, local presence

Calash has worked globally with a focus on Europe, North America, Australia and the Middle East — with people on the ground in every key market.

Concise, commercial outputs

We deliver pragmatic, straight-talking strategies and reports — no padding, just the insights that matter.

Our People

Leadership team

Full team

Alan Evett

Chairman

Throughout his career, Alan has delivered strategic value to energy businesses worldwide — as a business owner and advisor, creating and delivering business plans that have grown companies from start-ups through successful exits.

Iain Gallow

Managing Director

Iain leads overall delivery of Calash projects, having led strategic advisory and commercial diligence transactions for over a decade. Commercial and financial background from corporate banking with deep knowledge of energy, mining, and industrials.

Robert Neves

Director

15 years in management consulting with a focus on commercial and vendor due diligence and strategic advisory across Energy, Industrials, and Technology. Rob has led numerous projects for investors and management teams globally.

John Corbett

Associate Director

Analytical expertise in database design, financial modelling, and market analysis. Master's in Global Energy and Climate Policy. Extensive project experience in waste-to-energy, carbon reduction, solar, and wind.

Global Network

A global network of specialists

4,000⁺

Calash has direct access to over 4,000 experts globally — meaning in-market insight is only a phone call away, wherever in the world your challenge lies.

Client Feedback

What our clients say

The Calash team was responsive, detail-orientated and intuitively knowledgeable about the commercial and technical considerations associated with the offshore energy sector. Their commercial due diligence will help us guide the business into its next phase of growth.

Investment Manager

Foresight

The team was swift, responsive and detailed and became a key part of our efforts during divestment, providing close support from the outset right through our diligence process.

Chief Executive Officer

EV Holdings

Calash was able to consider all major attention points — from regulation, competition, and market drivers — in a conclusive and efficient way. We look forward to working with the team again in the future.

Director

Strada Partners

Trusted by leading private equity, investors & corporates worldwide