About Us

For more than a century, Lummus Consultants has deep roots in our most critical industries and a strong foundation of service to the companies that power and sustain our world.

A proud history and heritage

Every company has a story. Ours goes back to 1907. Born as a small division of Stone & Webster, the company initially focused on management services for utility companies, eventually expanding into advisory services in the transportation, natural gas transmission and manufacturing businesses that fueled the growth and industrialization of the 20th century. By 1968, we were known as Stone & Webster Management Consultants to better reflect our evolving services and client partnerships. In 2000, when The Shaw Group acquired the assets of Stone & Webster, our name changed to Shaw Consultants International, and the company continued to expand its reach and scale.
With the acquisition of The Shaw Group by EPC giant CB&I in February 2013, we became part of CB&I’s Technology operating group and were renamed Lummus Consultants International. CB&I subsequently merged with McDermott International and then sold the Lummus Technology division in 2020 as part of a reorganization. Over the years our name changed but our commitment to service excellence endured. Today Lummus Consultants operates as a fully independent consulting arm of privately owned Lummus Technology, with main shareholders Rhone Capital and the Chatterjee Group.

Every company has a story. Ours goes back to 1907. Born as a small division of Stone & Webster, the company initially focused on management services for utility companies, eventually expanding into advisory services in the transportation, natural gas transmission and manufacturing businesses that fueled the growth and industrialization of the 20th century. By 1968, we were known as Stone & Webster Management Consultants to better reflect our evolving services and client partnerships.

In 2000, when The Shaw Group acquired the assets of Stone & Webster, our name changed to Shaw Consultants International, and the company continued to expand its reach and scale.

With the acquisition of The Shaw Group by EPC giant CB&I in February 2013, we became part of CB&I’s technology operating group and were renamed Lummus Consultants International. CB&I subsequently merged with McDermott International and then sold the Lummus Technology division in 2020 as part of a reorganization.

Over the years our name changed but our commitment to service excellence endured. Today Lummus Consultants operates as a fully independent consulting arm of privately owned Lummus Technology, with main shareholders Rhone Capital and the Chatterjee Group.

By the numbers

1907 Founded
A 110+ year
Legacy
800+ Projects

Completed
Since 2000

$500+ Billion
In Assets
Funded
6 Locations

Global Reach,
Local Experience

1 Team
Working
For You
800+
Projects Completed
since 2000
 
600+
$US Billion in
Assets Funded
 
115+
Years since
1907 Inception
 
6
Strategic Locations for Global Reach, Local Experience
1
Company Working
for You
 

A legacy of service excellence

Our firm stands on its values of providing trusted, independent advice and insight based on deep and wide technical, industry and commercial expertise, a rock-solid foundation for the due diligence and project support on which we stake our reputation. Time and talent have blended well with our end-to-end project capabilities, intuitive thinking and problem-solving skills, and rich and varied experience to make Lummus Consultants the full-service consulting, advisory and energy solutions company it is today.

Lummus Consultants operates from six office locations around the globe as a leading provider of independent advisory and consulting services, specializing in power generation and distribution, oil and gas processing, refining and petrochemical, infrastructure, and related energy transition solutions. Our broad-based client list spans successful project developers, owners, sellers, buyers and their lenders and financial advisors, all of whom count on our unique combination of technical, industry, environmental and commercial experience. Clients across the power and process industries seek our valuable expertise, insight and trusted opinions to enhance decision support, execute more efficiently, mitigate risk and exposure, and optimize sustainability efforts.

With more than 800 successful projects representing $600 billion in assets funded around the world, we stand committed to providing end-to-end project solutions that help make clients more efficient, more resilient and ultimately more profitable.

A legacy of service excellence

Our firm stands on its values of providing trusted, independent advice and insight based on deep and wide technical, industry and commercial expertise, a rock-solid foundation for the due diligence and project support on which we stake our reputation. Time and talent have blended well with our end-to-end project capabilities, intuitive thinking and problem-solving skills, and rich and varied experience to make Lummus Consultants the full-service consulting, advisory and energy solutions company it is today.

Time and talent have blended well with our end-to-end project capabilities, intuitive thinking and problem-solving skills

Ready to serve

Lummus Consultants operates from six office locations around the globe as a leading provider of independent advisory and consulting services, specializing in power generation and distribution, oil and gas processing, refining and petrochemical, infrastructure, and related energy transition solutions. Our broad-based client list spans successful project developers, owners, sellers, buyers and their lenders and financial advisors, all of whom count on our unique combination of technical, industry, environmental and commercial experience. Clients across the power and process industries seek our valuable expertise, insight and trusted opinions to enhance decision support, execute more efficiently, mitigate risk and exposure, and optimize sustainability efforts.

With more than 800 successful projects representing $500 billion in assets funded around the world, we stand committed to providing end-to-end project solutions that help make clients more efficient, more resilient and ultimately more profitable.

We have more than 800 successful projects representing $500 billion in assets funded around the world

Comprehensive services across the project cycle

From strategy and planning to project monitoring and every step in between, Lummus Consultants delivers services and solutions to drive value across your enterprise.

Join our team

We’re looking for bright, collaborative and inquisitive high achievers who are passionate about growing their skills and applying their talents to address the critical challenges of business and industry.

Let’s connect for
your next project

Contact us today to learn more about partnering with Lummus Consultants.
Charlie Bowser leads the decarbonization advisory practice and is responsible for strategy, execution and financing support for net zero projects and greenhouse gas reduction planning. Charlie has more than 25 years of experience in nuclear, renewable (wind and solar) and natural gas-fired power generation technologies. His expertise includes finance, engineering, business development, project development and operations. Previously, Charlie was president of NET Power, leading the engineering, development, construction, commissioning and operation of a first-of-a-kind, supercritical CO2 zero emission prototype, as well as various positions with Exelon Generation and the U.S. Navy. Charlie earned a Master of Business Administration in Corporate Finance from Cornell University and a Bachelor of Science in Systems Engineering from the United States Naval Academy.
John Senner is responsible for the power industry technical advisory practice for North America and Asia. He has more than 40 years of industry experience in technical support, financing, acquisition, execution and divestiture on a wide range of projects. John’s expertise includes renewable and non-renewable power generation, waste management, emissions controls, new technology evaluations involving pyrolysis and gasification, and decarbonization involving carbon capture and hydrogen production technologies. Previously, he managed life-cycle inventory assessment projects in waste-to-energy and solid waste for the aluminium, paper and plastics industry. John has worked for Lummus Consultants and its predecessor companies for 25 years after earning a Bachelor of Science in Chemical Engineering from Cornell University.
Mark White is responsible for the power industry technical advisory practice for Europe and the Middle East. He has more than 30 years of experience in design, engineering, construction, commissioning, testing, project management, operation and maintenance, business development, and consulting. Mark has managed technical assignments, studies, advisory roles and due diligence reviews and specializes in the technical, contractual and commercial issues associated with the development of independent power and water projects, primarily in Europe, Asia, the Middle East and Africa. Mark earned a Master of Engineering in Fuel and Energy Engineering from the University of Leeds with energy engineering coursework at the National Institute of Applied Science, Lyons, France.
Shahid Bhatti is responsible for the process industry technical advisory practice for the Middle East. He has more than 35 years of experience in refining, petrochemicals, oil and gas development, liquefied natural gas, and oil storage terminals. Shahid provides technical expertise, critical studies and support on technology evaluation, process design, construction, startup and operations. He has worked for Lummus Consultants and its predecessor companies for almost 30 years. He earned a Bachelor of Science in Chemical Engineering from the Polytechnic of the South Bank, London, and Master of Business Administration from Cranfield University, Bedfordshire.
Keith Darby leads the process industry technical advisory practice in the United States. He has 45 years of experience in design, construction and operation of oil and gas facilities, focusing on technical, environmental and social due diligence to support the international finance community. Keith is responsible for global projects encompassing the production, transportation and treatment of oil and gas into products and biofuel, as well as technical due diligence for project financing. Previously, he was a technical director for WS Atkins and led its Scottish operation. Keith has been with Lummus Consultants and its predecessor companies for 25 years and earned a Bachelor of Science with First-Class Honors from Portsmouth University in the United Kingdom, where he is a Chartered Engineer.
Susan Garven serves as president and managing director of Lummus Consultants. She has more than 40 years of experience in the delivery of independent technical advisory services to the industrial power and process industries and has held senior management positions with Lummus Consultants’ predecessor companies, Stone & Webster and Shaw Group. Susan has worked with gas utilities, petrochemical and refining companies providing economic evaluations, feasibility studies, forecasting and marketing studies. She is also an experienced process engineer with a background in refining and petrochemicals. Susan earned a Bachelor of Science in Chemical Engineering from Lafayette College and a Master of Business Administration from the University of Houston.
Lummus Consultants’ deep industry and project expertise provides valuable litigation support and expert witness testimony in legal cases involving power and oil and gas processing and transport technologies. When deep technical evaluations and engineering project analysis are required to support your case, you need an expert witness with impeccable technical credentials, unimpeachable valuation assessments and strong environmental insights. The experts at Lummus Consultants stand ready to assist your case with the strongest combination of technical, commercial and environmental project experience in the process and power industries.

The execution phase typically carries the highest level of risk for cost overruns in a project lifecycle. Lenders and owners benefit from an independent engineer to monitor the construction and initial operations, assessing quality control, costs, schedule, permitting and startup/testing of the project are properly executed; reviewing costs and schedules against corresponding budgets and contracts; offering guidance on emerging technical issues, and certifying construction completion and performance.

Lummus Consultants has performed construction and operations monitoring services for power plants, LNG facilities, process facilities and pipeline facilities all over the world. Our decades of experience in this area give us broad and deep knowledge across the spectrum of project construction methods, and from mega-projects to small single process units, enabling us to quickly identify critical risks and assess mitigation plans to ensure the best outcome for projects during construction, commissioning and commercial operation.

When project owners or developers want to assess and confirm the bankability of their project or emerging technology, they need a unique combination of broad technical know-how, on-the-ground project experience, and decades of working with lenders and investors to make the best determination. When confirming project bankability, Lummus Consultants scrutinizes every piece of the proposed project, including design, costs, execution plans, schedules and ESG development to ensure sufficient development and oversight are in place to satisfy lender requirements.

Our long legacy of trusted, independent advice and insight — particularly serving as lender’s engineers — provide extra credibility and confidence to any investment under consideration. With expansive global experience across technologies, processes and industries, you can count on our independent advice and technical assessment reports when seeking bank financing or outside funding.

Lummus Consultants provides comprehensive support and services to help owners consider alternatives and move forward with economically viable projects across the energy value streams. Feasibility studies assess economic viability of a proposed project, considering key technology, location, execution methods, environmental factors and costs implications. Lummus Consultants’ breadth and depth of experience lends efficiency and insight to the process. Our seasoned professional work closely with clients to investigate costs versus benefits, estimate return on investment and compare possible alternative solutions.
Lummus Consultants supports the acquisition and divestiture of power and process facilities around the world on both the sell and buy sides of the transaction. Drawing from our broad experience, we provide bidders with valuable insights through independent engineer’s reports, technology and condition assessments, environmental compliance reviews, operations and maintenance assessments, capital cost projections, and remaining useful life analyses. Our clients include utilities, independent power producers, project developers, private equity firms and infrastructure/income funds.

Third-party environmental, social and governance (ESG) reviews for new projects, acquisitions, divestitures and finance activities require a strong combination of regulatory acumen and technical expertise to properly assess ESG impacts, risks and liabilities. Lummus Consultants has deep environmental science, regulatory, engineering, construction and operating experience to effectively identify and prioritize ESG risks and develop plans to protect human health and the environment.

Additionally, typically following the United Nations Sustainability Development Goals or other recognized international frameworks, our team of experts is there to guide companies in developing meaningful and actionable sustainability policies for the future.

Given the high stakes and shareholder visibility of today’s large energy and infrastructure projects, an independent, outside review of project plans can give owners greater confidence in a project’s overall success, as well as help achieve critical speed to market by identifying and mitigating problems before they occur.

Lummus Consultants has a proven track record of success performing cold-eye peer reviews for clients with large and complicated projects throughout the energy sector. The purpose and scope of every independent project review are developed closely with each client and typically include an assessment of project costs, schedule, execution plans, project team, quality factors, environmental, social and safety risks, and management systems. Findings include an analysis of key risks, a list of key mitigation actions and recommended timing of mitigating actions to improve successful outcomes.

Due diligence services help companies and investors understand the technical, commercial and environmental factors involved in a potential investment, venture or project, providing an independent, fully objective and thorough assessment that helps strengthen decision making and mitigate project risks before they occur. Lummus Consultants’ due diligence advisory services are the hallmark of our firm, having provided technical advisory and consultancy in the power, oil and gas, refining and chemicals, and infrastructure space for decades. In fact, our teams have provided technical due diligence review services on more than 800 transactions representing more than $500 billion in funding on assets across the globe.

As an independent technical consultant or lender’s engineer, we use our decades of hands-on experience in the essential aspects of process, power and water plant design, construction and operation to assess areas of risk. We work with the global financial sector and investment groups, providing technical guidance to support project finance and acquisitions around the world. Our seasoned experts provide an effective combination of technical and commercial experience when assessing and confirming a project’s design, technology, expected performance, capital costs, operating and maintenance costs, schedule, operation, contractual obligations and pro forma financial projections are reasonable and aligned — to minimize our client’s risk.

As an independent environmental consultant, we assess the project’s environmental, safety and social impacts, risks and liabilities, as well as the project’s ability to comply with permits, licenses and applicable environmental guidelines such as the Equator Principles. Our experts stay up to date on the continually changing environmental legislation and trends so clients can have confidence in our insight and advice in this crucial area.

Lummus Consultants understands the risks associated with newly commercialized and evolving technologies, particularly in the growing energy transition areas where new ideas are hitting the market quickly. Through the breadth of our teams’ skills and our extensive due diligence experience, we can identify areas of risk associated with scaleup, design modification, product line evolution and first-of-a-kind technology innovations. Our unique combination of technical expertise and business evaluation skills enables us to effectively suggest appropriate technical and commercial mitigation strategies.
As energy industries and markets mobilize to optimize efficiency and maximize sustainability at every point in the value chain, a strong commitment to careful strategy and planning is more important than ever. From enterprise planning, project development and operational improvements to compliance and sustainability planning and everything in between, the experts at Lummus Consultants bring strong skills and trusted, independent advice to your project team or your investment plans.
As energy industries and markets mobilize to optimize efficiency and maximize sustainability at every point in the value chain, a strong commitment to careful strategy and planning is more important than ever. From enterprise planning, project development and operational improvements to compliance and sustainability planning and everything in between, the experts at Lummus Consultants bring strong skills and trusted, independent advice to your project team or your investment plans.

Due diligence services help companies and investors understand the technical, commercial and environmental factors involved in a potential investment, venture or project, providing an independent, fully objective and thorough assessment that helps strengthen decision making and mitigate project risks before they occur. Lummus Consultants’ due diligence advisory services are the hallmark of our firm, having provided technical advisory and consultancy in the power, oil and gas, refining and chemicals, and infrastructure space for decades. In fact, our teams have provided technical due diligence review services on more than 800 transactions representing more than $500 billion in funding on assets across the globe.

As an independent technical consultant or lender’s engineer, we use our decades of hands-on experience in the essential aspects of process, power and water plant design, construction and operation to assess areas of risk. We work with the global financial sector and investment groups, providing technical guidance to support project finance and acquisitions around the world. Our seasoned experts provide an effective combination of technical and commercial experience when assessing and confirming a project’s design, technology, expected performance, capital costs, operating and maintenance costs, schedule, operation, contractual obligations and pro forma financial projections are reasonable and aligned — to minimize our client’s risk.

​As an independent environmental consultant, we assess the project’s environmental, safety and social impacts, risks and liabilities, as well as the project’s ability to comply with permits, licenses and applicable environmental guidelines such as the Equator Principles. Our experts stay up to date on the continually changing environmental legislation and trends so clients can have confidence in our insight and advice in this crucial area.