ENR International Design Firms 2025: Ayesa marks five consecutive years in the World’s Top 50 and Latin America’s Top 10

The ENR Top 225 International Design Firms Report for 2025

• #43 in the Top 225 International Design Firms: Ayesa marks five consecutive years in the World’s Top 50.
• #56 in the Top 150 Global Design Firms: up five places from 2024.
• #7 in Latin America: reinforces its position among the region’s top ten players.

Ayesa continues to strengthen its position on the global engineering stage, as reflected in the latest Engineering News-Record (ENR) rankings. For the fifth consecutive year, the company is recognised among the World’s Top 50 International Design Firms and the Top 10 in Latin America, where it ranks #7 in a market worth $3.3 billion. Ayesa has also advanced in the ENR Top 150 Global Design Firms, climbing five places to #56 in 2025.

Driving Growth Organically and by Strategic Acquisition

These rankings highlight Ayesa’s strong growth trajectory, underpinned by successful integration of acquisitions and expansion into new markets. Over the past three years, the company has tripled in size, combining organic growth with strategic acquisitions across Europe, the Middle East, and Australia – including ADP Consulting, a leading engineering sustainable design firm acquired in February 2025, with six offices and over 300 professionals. Ayesa revenue has reached nearly €800 million in 2024 with backlog surpassing €1.5 billion.

With 13,000 professionals spanning 80 technical disciplines, Ayesa demonstrates both the depth of its technical capability and its ability to stay locally committed while leveraging global scale for international clients.

Rosalio Tomas Alonso Peces, Ayesa’s Global Chief Operations Officer commented:

“Being recognised for half a decade in the Top 50 is testament to the dedication of our teams across all regions. I want to extend my thanks and congratulations to all our colleagues worldwide for their sustained efforts and hard work.

Our strategy of combining organic growth with strategic acquisitions has made us a stronger global partner to our clients. We remain committed to applying our 60 years of expertise to help societies meet the challenges of sustainable development, the energy transition, and climate change.”

Key takeouts from ENR’s 2025 report

• Global growth: International design revenue rose 7.7% to $89.3bn in 2024, with median revenues up 6.9%.
• Profitability: 93.6% of firms reporting were profitable on international work.
• Regional shifts: The Middle East saw the fastest growth (+30%), followed by the U.S. (+10.7%), Africa (+9%), and Europe (+7.6%). By contrast, revenue fell in Latin America (–15%) and the Caribbean (–17.4%).
• Market performance: Telecoms surged +61.7%, with double-digit growth in Sewer/waste (+20.2%), Power (+18.9%), Industrial (+17.7%), General building (+16.2%), and Water supply (+15.8%). Oil & Gas contracted (–21.1%).
• Backlogs: Still robust but are softening – 65.4% of firms reported increases, compared with 69.3% last year.
• Client priorities: Energy-efficient systems and low-carbon materials are increasingly demanded to meet carbon-neutral and zero-footprint goals.

Technology & transformation:

• AI is seen as the single most transformative technology for design services. Some firms are still exploring its use, while others already apply it to recruitment, efficiency tracking, procurement, and project planning.
• Firms are investing heavily in BIM, digital twins, reality capture, carbon management tools, and climate-resilient infrastructure to boost efficiency and add client value.
• Global trends: Sustainability, ESG, AI, and adaptive infrastructure systems are driving firms to reimagine business models, improve efficiency, and deliver stronger ROI.
• Energy transition: Nuclear power is re-emerging as a core part of global decarbonisation strategies, with commitments to triple capacity by 2050.

Link to Full Report: Engineering News-Record (ENR) – THE TOP 225

^{Note: The Top 225 International Design Firms rankings are based on design-specific export revenue generated from projects outside each firm’s respective home country. The rankings of the Top 150 Global Design Firms are determined by their total revenue from design projects, regardless of the project’s location.}

Ayesa ENR Top 225 Rankings 2025