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STO Building Group, Layton Merge Into Construction Giant

Two of the country's bigger commercial builders will merge before the year is over. 

Paradise Valley
A Ritz-Carlton under construction in Arizona's Paradise Valley is slated for a 2020 opening.

STO Building Group, formerly known as the Structure Tone Organization, will merge with Layton Construction, the companies said Wednesday.

Terms of the deal were not disclosed.  

The move represents an effort by both companies to combine their respective geographic advantages. Based in New York, STO has a strong presence in the Northeast, Texas and Canada, while Layton has a strong footprint in the West based in its Salt Lake City headquarters. 

Some of Layton's leadership will assume partial ownership in STO, while Layton will keep its name and logo. 

STO's merger with Layton represents the latest of several recent additions to its family of companies. It merged with Canadian construction management company Govan Brown in 2017, Florida-based Ajax Building Corp. last year and Bay Area builder BCCI Construction in May.

STO's merger with Layton could be its biggest yet, creating the fourth-largest construction company in the U.S., Layton Construction said through a spokesperson. By construction revenue, STO Building Group is the 14th-largest contractor in the country, while Layton ranks 44th, according to Engineering News-Record

“Opportunities like this with Layton are the very reason we shifted our company structure to STO Building Group last year,” STO Building Group Executive Chairman James Donaghy said in a statement.