Quanta Services, Inc.

Quanta Services, Inc. is a Houston-based specialty contractor that designs, builds, upgrades and maintains the electric power, gas and communications infrastructure its customers own — transmission lines and substations, distribution systems, gas utility networks, pipeline facilities, and the electrical, mechanical and plumbing plant inside large load centres such as data centres and advanced manufacturing plants — generating $28.48 billion of revenue in 2025 with roughly 69,500 employees.

For most of its history Quanta was read as a utility contractor: a decentralised federation of operating companies doing recurring construction and maintenance work for regulated electric and gas utilities, much of it under master service agreements. That business still supplies about 70% of revenue and is the reason the company exists. What has changed, and what this report is mostly about, is what the rest has become. Technology, manufacturing and communications customers went from 6% of revenue in 2023 to 13% in 2025, and the 2024 acquisition of Cupertino Electric gave Quanta a platform to sell electrical and mechanical work directly to hyperscalers rather than only to the utilities that serve them.

The file turns on one question: whether a business built on regulated, largely recurrent, ratepayer-funded work can carry the growth, the margin profile and the risk appetite of a technology-infrastructure contractor without surrendering the resilience that made it worth owning. At $678.02 a share the market values Quanta's equity at $101.89 billion and its enterprise at $107.48 billion, which is 31.09 times trailing adjusted EBITDA and 34.96 times trailing EBITDA — the multiples of a company whose earnings are expected to compound, not those of the utility supplier it used to be. The next three years will settle whether the re-rating was deserved.