PFAS Series article 7 - Who Cleans it up?

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Installing a PFAS treatment system is only the beginning. For every water utility, municipality, or industrial operator facing PFAS contamination, there is a prior — and often harder — question: who do you hire to figure out the problem, design the response, and manage the cleanup?

The PFAS consulting and remediation market has grown rapidly since 2020. What was once a niche practice within environmental engineering firms has become a major service line, with dedicated practices at every major global firm and a growing ecosystem of specialist consultants, boutique firms, and technology-led providers.

This article maps that landscape — from the global engineering giants capable of managing $500 million multi-site DoD programmes, to the specialist firms with deeper scientific expertise, to the boutique and community-focused consultants serving smaller utilities and underrepresented communities. It also confronts the honest reality of where the consulting market has not yet reached: India, China, the Middle East, and most of the developing world.

The right consultant depends entirely on the problem. A complex military site CERCLA programme needs different expertise from a small rural utility trying to comply with a drinking water MCL. Matching the firm to the scope is as important as any technical capability.

Figure 1: How to Choose — Consultant Type vs. Project Need

Use this matrix to match your PFAS challenge to the right type of firm

Source: TheWaterNetwork.com / AquaSPE analysis, April 2026  ·  ✓✓✓ = best fit  ·  ✓✓ = good option  ·  ✗ = typically not suitable

Figure 1: Selection matrix — matching firm type to PFAS project need. Use as a starting point; always verify specific firm capabilities.

The global engineering firms

The world's largest environmental and infrastructure engineering firms have built substantial PFAS practices since 2018. Their scale enables them to manage the largest, most complex programmes — multi-site military cleanups, national drinking water compliance programmes, and complex CERCLA sites requiring decades of management. Their limitations are cost and sometimes scientific depth on highly specialised questions