Specialist advisory for environmental service operators in Spain

Spain’s water and environment sector brings together approximately 2,825 active companies and employs more than 48,700 Social Security-registered workers, with aggregate revenues of around €9.3 billion and a gross margin of 22.8% — above that of many service sectors. Spain’s presence in the European market is significant: the sector commands a 20.9% share of EU activity, driven by the leading position of major domestic concessionaires in water and waste markets across France, the United Kingdom and Latin America. That international leadership coexists with growing domestic regulatory pressure from Law 7/2022 on waste and contaminated land and from the objectives of the Water Framework Directive.

Law 7/2022 raises traceability, recycling and producer responsibility standards, generating compliance costs that require a strategic review of the business model for many operators. At the same time, the National Purification Plan and European commitments on reclaimed water reuse are driving substantial infrastructure investment that must be financed through a combination of tariffs, grants and private capital. Next Generation EU funds — which allocate over €3 billion to Spain’s water cycle — and pressure from local authorities to improve efficiency have accelerated public-private partnership processes, operator consolidation and the renewal of longstanding concessions.

At BMC we advise integrated water cycle concessionaires, waste treatment and recovery companies, soil decontamination plant operators and circular economy project promoters on all their legal and financial needs. Our administrative law and public procurement practice accompanies clients in the tendering, negotiation and management of concessions with local and regional authorities, including the economic-financial rebalancing mechanisms triggered by unforeseen regulatory changes. We also manage compliance with environmental liability regulations and advise on the sizing and structuring of mandatory financial guarantees under Law 26/2007.

The ESG agenda and sustainable finance are areas of growing strategic importance for operators in this sector. We support clients in issuing green bonds and water bonds, aligning with the EU Taxonomy for Sustainable Activities — which explicitly recognises water management and the circular economy as environmentally sustainable activities — and preparing sustainability reports under CSRD/GRI standards. This work is complemented by management of European and national grants for environmental innovation projects, sector-specific tax planning and legal assistance in disputes arising from environmental damage, administrative claims or contractual conflicts with public bodies.

Key services for water and environment operators

Tax planning for water and environmental services companies involves specific analysis of the VAT treatment of water supply services (subject to the reduced 10% rate), waste management services (standard 21% rate in most cases) and environmental treatment services. For public concession operators, the corporate tax treatment of concession intangibles under both Spanish GAAP and IFRS requires careful analysis and documentation to ensure correct amortisation and the appropriate treatment of concession renewals and extensions.

Grants and subsidies management is strategically important for the sector. The Recovery, Transformation and Resilience Plan allocates significant investment to urban water sanitation, wastewater reuse, circular economy infrastructure and clean energy in water management. EU cohesion funds and the LIFE programme provide additional financing for environmental innovation projects. We manage the full funding cycle: identifying applicable programmes, preparing competitive applications, structuring eligible budgets and managing financial audits.

Corporate finance and valuation expertise for water and environmental services assets requires specialised methodologies that capture the regulated nature of the business, the concession period remaining, the regulatory risk profile and the capex intensity of the infrastructure. We advise on the full range of transactions in the sector: concession acquisitions, portfolio restructurings, infrastructure fund investments and the valuation of environmental technology companies.

Regulatory challenges for water and environmental services

ESG and sustainability reporting obligations are particularly demanding for water and environmental services companies, given their direct environmental footprint and their role as critical infrastructure operators. The EU Taxonomy provides detailed technical screening criteria for water management and pollution prevention activities. CSRD-aligned sustainability reporting for water utilities requires comprehensive measurement of water consumption and discharge quality metrics, biodiversity impacts and the social value of water access.

The management of public concession relationships — with municipal and regional authorities as principal — requires continuous monitoring of service quality requirements, tariff review processes, capex compliance obligations and force majeure clauses. Regulatory disputes with concession-granting authorities are increasingly common as tariff pressures and investment requirements create tensions between operators and public bodies.

KPIs and trends for water and environment in Spain 2025-2026

Spain’s water services sector manages more than 25 billion cubic metres of water annually across the urban water cycle, serving 47 million inhabitants through a combination of municipal and concession-based management. Environmental services and waste management generate combined revenues of more than €15 billion annually. The sector faces €12 billion in investment requirements by 2027 — primarily in wastewater treatment upgrade, water reuse infrastructure and network renewal — that are partially financed through NextGenEU funds and require specialist advisory to navigate effectively. At BMC we advise the full breadth of water and environmental services operators with integrated tax, regulatory, ESG and corporate finance advisory.