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Rimkus

Forensic engineering consulting for insurance disputes

Overview

Rimkus provides independent forensic engineering and technical consulting to support insurance claims, legal disputes, and risk management. Its work involves investigating failures and accidents to determine root causes, analyzing data from site visits, lab tests, and simulations, and delivering reports and expert testimony that help insurers, law firms, and corporations resolve claims and litigation. The company differentiates itself through a long track record of objective analysis, an extensive global footprint with over 110 offices, and a growth strategy built on acquisitions and private-equity investment that expanded service lines and geographic reach. Rimkus’ goal is to be a leading, globally connected provider of technically rigorous, objective engineering analysis for insurance, legal, and corporate clients, growing through strategic acquisitions to widen capabilities and reach.

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About Rimkus

Simplify's Rating
Why Rimkus is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

ConsultingIndustrial & Manufacturing

Company Size

501-1,000

Company Stage

N/A

Total Funding

N/A

Headquarters

Houston, TX

Founded

1983

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What believers are saying

  • Rimkus appointed Mark Hollis July 21, 2026, expanding energy disputes across CCUS, hydrogen, and SAF.
  • Canada expansion accelerated April 24, 2026 with Michael Hensen and Walter Gaudet leading BES growth.
  • The November 2026 brand platform supports cross-selling after 15 acquisitions since 2020 and 2024 HGGC capital.

What critics are saying

  • HGGC-backed acquisition sprees strain integration; Matthew Cass was added April 14, 2026 to fix systems.
  • Margin pressure follows talent wars in Australia, Canada, and EMEA after July 2026 hiring pushes.
  • If claims volume falls, Rimkus' forensic-heavy revenue base weakens faster than construction consulting can replace it.

What makes Rimkus unique

  • Rimkus blends forensic engineering, dispute resolution, and human-factors consulting across 45+ disciplines.
  • Chris Rayasam joined February 11, 2026, bringing acquisition-integration experience from Consor and Murraysmith.
  • More than 100 offices and 900 experts let Rimkus serve insurance, legal, and industrial clients globally.

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Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Life Insurance
  • Disability Insurance
  • 401(k) Company Match
  • Paid Vacation
  • Paid Sick Leave
  • Paid Holidays
  • Parental Leave
  • Training Programs
  • Remote Work Options

Company News

Butler Weihmuller Katz Craig LLP
Nov 6th, 2026
Nashville Live burns CE/CLE Seminar - Reading the Ashes: Case Studies and Panel Discussion.

Nashville Live burns CE/CLE Seminar - Reading the Ashes: Case Studies and Panel Discussion. November 13, 2026. Butler is proud to co-sponsor the Nashville Live Burn CE/CLE Seminar, hosted by Rimkus and BluSky on November 13, 2026, in Nashville, Tennessee. Charlotte Partner Scott Hefner, Senior Associate AJ Elmes, and Associate Kurt Widenhouse will participate in Reading the Ashes: Case Studies and Panel Discussion, exploring fire investigation challenges, evidence preservation, and how early decisions can impact liability, subrogation, and litigation outcomes. The seminar will also feature live burn demonstrations and continuing education opportunities for legal and insurance professionals.

Consultancy.uk
Jul 21st, 2026
Rimkus appoints Mark Hollis as director in global energy services team.

Rimkus appoints Mark Hollis as director in global energy services team. 21 July 2026 Consultancy.uk Rimkus has appointed a new director in its global energy services wing. Mark Hollis brings more than three decades of experience to the role. Global engineering and technical consulting firm Rimkus has named Mark Hollis as director in its global energy services team, further strengthening its ability to support clients in resolving complex technical disputes, major claims, and contractual failures across the global energy and infrastructure sectors. Hollis commented, "I am excited to join Rimkus and to bring more than three decades of energy engineering experience to its forensic and dispute-resolution practice. I look forward to helping clients get to the root cause of complex failures and to resolving disputes - including delay and quantum - across oil and gas, industrial decarbonisation, clean fuels and energy storage. Hollis brings more than 32 years of international experience in the oil and gas and wider energy sectors. A Chartered Chemical Engineer with an Executive MBA, his background spans both operator and senior consulting roles, leading complex, large-scale developments across upstream, midstream, and downstream oil and gas; both offshore and onshore, across brownfield and greenfield environments, as well as the energy transition, including carbon capture (CCUS), hydrogen, sustainable aviation fuel (SAF), and long-duration energy storage (LDES). Throughout his career, he has delivered multidisciplinary engineering and project leadership on major global energy infrastructure projects. He has advised operators, national oil companies, governments, and investors across the full project lifecycle; from feasibility and concept selection, through Pre-FEED and FEED, to construction, commissioning, and operations. His experience spans the UK, Europe, the Middle East, Africa, Asia-Pacific, and North America, with particular strengths in brownfield integration, techno-economic due diligence, and the evaluation and scale-up of emerging energy technologies. At Rimkus, Hollis will provide strategic project advice and expert technical services in forensic root-cause analysis of failures and delays, and the quantification of damages in complex arbitration and litigation matters, drawing on his deep facilities, process engineering design and project planning and delivery expertise, brownfield integration of complex modifications, and hands-on experience in commissioning, operations, maintenance, and performance evaluation. "I am delighted to welcome Mark to the global energy team," added Rod Rennisson, senior vice president for global energy services at Rimkus. "His appointment extends our forensic and dispute-resolution expertise into the energy sector in the EMEA region, building on the strong quantum and dispute capability we already have in region. Mark's depth of engineering and operational experience across oil, gas and the energy transition will be a real asset to clients in the legal, insurance and investment communities." Energy capabilities. As demand for energy infrastructure continues to grow and projects become increasingly complex, Rimkus is working to help clients navigate risk, resolve disputes efficiently, and protect value across major projects and investments. According to a release accompanying the appointment, Hollis strengthens Rimkus' expert services and dispute resolution offering within the energy sector, "enhancing the firm's ability to support clients involved in technically complex and high-value projects." By combining technical expertise with commercial understanding, Hollis will work to help clients establish causation, quantify impacts, and support their position in arbitration, litigation, and insurance claims. His experience across the full project lifecycle also enables clients to identify and manage technical, commercial, and contractual risks before they escalate into formal disputes. A Rimkus spokesperson added, "Mark brings an exceptional combination of technical expertise, commercial awareness, and global project experience. His ability to analyse complex issues and deliver clear, defensible conclusions will further strengthen our support for clients facing significant claims, disputes, and operational challenges across the energy sector."

Consultancy.com.au
Jul 15th, 2026
Rimkus strengthens team with delay and disputes specialist Zane Hedge.

Rimkus strengthens team with delay and disputes specialist Zane Hedge. 15 July 2026 Consultancy.com.au Global professional services firm Rimkus has strengthened its dispute resolution team in Australia with Zane Hedge, who is based in the firm's Perth office. A highly experienced delay and construction disputes specialist, Hedge brings more than 37 years of industry experience to the firm. Throughout his career, he has supported clients on some of the world's most complex infrastructure, transportation, aviation, energy, utilities, industrial, and commercial developments, building a track record in delay analysis, contract management, claims management, expert witness services, and dispute avoidance. Hedge has spent the past 17 years in the Middle East, most recently as a Senior Director at Kroll. Earlier in his career, he held senior leadership positions at BRG, Accuracy and Deloitte. Before relocating to the Middle East, he spent two decades in the United Kingdom, working for a range of firms, professional services organisations and construction companies. Commenting on his appointment, Hedge said: "I am delighted to be joining Rimkus at such an exciting stage in the company's growth. I look forward to working with colleagues throughout the Asia Pacific region to support clients in resolving challenging construction and infrastructure disputes and helping them achieve successful project outcomes." Headquartered in the US, Rimkus is a global provider of engineering, technical, and construction consulting services to corporations, insurance companies, law firms, and government agencies. The firm is a leading player in the area of forensic delay, quantum and project management services within the capital projects landscape. Hedge: "Rimkus has built an outstanding reputation for delivering independent expert services across complex disputes and project advisory assignments." Alistair Mein, Managing Director APAC at Rimkus, said: "We are thrilled to welcome Zane. His impressive breadth and depth of experience will be a tremendous asset, but just as important are the qualities he brings as a person. Zane is a strong communicator, a collaborative team player, and someone of high integrity. These are the strengths we value as we continue to build our team and position Rimkus to exceed our clients' expectations."

Canadian Consulting Engineer
Apr 24th, 2026
Rimkus names leaders for Canadian expansion.

Rimkus names leaders for Canadian expansion. April 24, 2026 By Peter Saunders Talking points. Consulting engineering firm Rimkus has appointed Michael Hensen and Walter Gaudet to lead its expansion in Canada. The appointments aim to enhance Rimkus' services amid rising demand for infrastructure and technical advisory services across the country. Hensen, based in London, Ont., brings nearly 40 years' experience in the construction industry. In his new role, he will focus on strengthening technical capabilities and expanding forensic services. Gaudet, a LEED-certified architect with nearly 30 years of experience, will oversee BES's growth across its Canadian offices. * Michael Hensen appointed VP of technical excellence for BES across North America. * Walter Gaudet succeeds Hensen as VP of BES Canada. This strategic leadership shift underscores Rimkus' commitment to addressing complex challenges in the built environment, positioning the firm for future growth in Canada. Powered by: Consulting engineering firm Rimkus has appointed two leaders to support the continued growth of its built environment solutions (BES) business across Canada, where it sees rising demand for infrastructure, building performance and technical advisory services. Michael Hensen, P.Eng., has been promoted to vice-president (VP) of technical excellence for BES across North America. Based in London, Ont., he has nearly 40 years' experience in the construction industry. After studying civil engineering at Concordia University, he worked for Le Groupe Clifton and Soprema before joining IRS Building Sciences Group, a Rimkus company, in 2022. In his new role, Hensen will support BES's services by strengthening its technical capabilities, investing in consultants' development, expanding Rimkus' forensic services across Canada and enhancing technology. Meanwhile, Toronto-based Water Gaudet succeeds Hensen as vice-president (VP) of BES Canada. He is a LEED-certified architect with nearly 30 years' experience, including roles with Designcorp, B+H Architects, Taylor Smyth Architects, KPMB Architects, Cannon Design, HDR and, most recently, AECOM, where he was senior VP (SVP) of the firm's buildings and places regional business line for Canada. In his new role, Gaudet will oversee the expansion of BES' capabilities across its Canadian offices and assist building owners, operators and investors. "These leadership appointments reflect our strategy to invest ahead of demand and ensure Rimkus is well-positioned to support clients navigating increasingly complex built environment challenges," says Chris Rayasm, president and CEO of Rimkus. "Canada represents a critical growth market for our firm. Walter's deep market knowledge and Michael's focus on technical excellence will help us deliver consistent, high-quality solutions for our clients." Stories continue below

Associated Press
Apr 21st, 2026
Rimkus appoints two VPs to expand built environment consulting across Canada

Rimkus, a global engineering and technical consulting firm, has appointed Walter Gaudet as Vice President of Built Environment Solutions Canada and Michael Hensen as Vice President of Technical Excellence for Built Environment Solutions across North America. The appointments support expansion as Canadian investment in infrastructure, housing and climate-resilient buildings increases demand for technical expertise. Gaudet, a LEED-certified architect who previously led AECOM's Canadian Buildings and Places business, will oversee Built Environment Solutions capabilities across Canadian offices. Hensen will strengthen technical capabilities and support growth across Canada and the US. Rimkus operates over 100 offices worldwide with more than 1,500 professionals, providing services including building envelope consulting, construction advisory, energy and resilience, and structural engineering.

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