Offices | Currently Browsing: USA
The Structure Tone Organization is now STO Building Group - Structure Tone
Structure Tone is a global leader in construction management and general contracting services with offices located in the US, UK, and Ireland. Founded in 1971, the company is among the world’s top twenty construction companies worldwide, responsible for more than $3.5B in annual construction volume.
post-template-default,single,single-post,postid-32293,single-format-standard,mkd-core-1.0.2,ajax_fade,page_not_loaded,,onyx child-child-ver-1.0.0,onyx-ver-1.4.1, vertical_menu_with_scroll,smooth_scroll,side_menu_slide_with_content,width_470,wpb-js-composer js-comp-ver-4.12,vc_responsive

The Structure Tone Organization is now STO Building Group

The Structure Tone Organization is now STO Building Group

The new name reflects the family of companies’ collective strength and individual legacies

New York, NY (June 5, 2019) – Today the Structure Tone Organization announced that it has rebranded its organization to the STO Building Group to more formally recognize the family of companies’ combined and individual strengths.

“We value the reputation and heritage of the firms who join our organization, and each has kept its name as a way to honor that legacy,” says James Donaghy, STO Building Group executive chairman. “As we continue to grow, we want to respect that legacy, but also reflect the collective expertise our companies offer. The STO Building Group platform helps us do that.”

STO Building Group comprises eight firms with over 2,200 employees across the US, Canada, UK and Ireland:


As a formal entity, STO Building Group allows each of those companies to maintain their cultural identity while being part of a multi-company platform.

“The STO Building Group supports each of our companies as they grow while creating opportunities with clients who may be looking for services that span across our platform and expertise,” says Robert Mullen, STO Building Group CEO. “The culture, integrity, project excellence and client-first approach that STO has always stood for remain exactly the same.”

STO Building Group was recently ranked #14 on ENR’s Top 400 Contractors list, and continues to grow in 2019 with the recent addition of BCCI Construction Company.


Rebecca Leonardis
Structure Tone VP of Marketing & Communications
(o) 212.251.9235
(c) 917.207.7206