THE BIGGEST CONSTRUCTION GIANTS BY SECTOR

Source: VORTEX and google

These are the companies dominating the Telecommunications, Transportation, and Power/Energy sectors in 2026 based on ENR revenue rankings — firms delivering some of the largest and most critical infrastructure projects in the world.

HITT Contracting – Telecommunications Leader

Key Facts

• Headquarters: Virginia, USA
• Ownership: Privately held (Hitt family)
• 2026 Revenue: $10.65B
• Main Markets: Data Centers, Commercial, Technology, Mission-Critical Facilities

Major Projects & Clients

HITT is heavily involved in hyperscale data center construction for major technology companies and cloud providers across North America. The company has delivered projects for:

• Confidential hyperscale campuses
• Mission-critical telecom facilities
• Federal technology infrastructure
• Advanced manufacturing facilities

Interesting Facts

• HITT is considered one of the fastest-growing mission-critical contractors in the U.S.
• The company is strongly associated with the data center boom driven by AI and cloud computing.
• Despite its size, it remains privately owned, which is increasingly rare among top U.S. contractors.

FlatironDragados – Transportation Leader

FlatironDragados is one of North America’s largest transportation infrastructure contractors, formed through the combination of Flatiron Construction and Dragados USA, part of the Spanish ACS Group empire controlled by Florentino Pérez.

Key Facts

• Headquarters: Colorado, USA
• Parent Company: ACS Group (Spain)
• 2026 Revenue: $6.17B
• Main Markets: Highways, Bridges, Rail, Airports, Mega Civil Infrastructure

Major Projects

FlatironDragados is involved in some of the most complex transportation megaprojects in the U.S., including:

• SR400 Express Lanes (Georgia)
• California High-Speed Rail packages
• Major airport expansions
• Interstate highway reconstruction projects
• Large bridge and tunnel infrastructure

Interesting Facts

• The company combines American heavy civil expertise with European megaproject experience.
• ACS Group is also one of the owners of the famous Real Madrid football club ecosystem through Florentino Pérez.
• FlatironDragados is heavily expanding in alternative delivery megaprojects including Design-Build and P3 contracts.

MasTec Inc. – Power & Energy Leader

MasTec has become one of the most powerful infrastructure contractors in North America, particularly in power transmission, renewable energy, and utility infrastructure.

Key Facts

• Headquarters: Coral Gables, Florida, USA
• Ownership: Publicly traded (NYSE: MTZ)
• 2026 Revenue: $6.45B
• Main Markets: Power Transmission, Renewables, Oil & Gas, Communications

Major Projects

MasTec has participated in:

• Large-scale transmission line projects
• Solar and wind energy developments
• Pipeline infrastructure
• Utility modernization programs
• Renewable energy EPC projects across the U.S.

Interesting Facts

• MasTec originally began as a small telecom contractor before evolving into an infrastructure giant.
• The company has grown massively due to renewable energy expansion and AI-related power demand growth.
• MasTec is considered one of the most diversified infrastructure contractors in North America.