United States
STOBG History
A visual representation of the history of STOBG
2016
By 2016, the Structure Tone Organization was a well-known leader in construction management.
$4B
Structure Tone Organization Revenue2017
STO Building Group Established
The Structure Tone Organization rebranded and is now STO Building Group (STOBG).
Govan Brown joins STOBG
Toronto-based Govan Brown joins the STOBG family of builders, marking our successful entry into the Canadian market.
$4B
STOBG Revenue2018
Ajax joins STOBG
Tallahassee-based Ajax Building LLC, joins the STOBG family of builders.
$4.9B
STOBG Revenue2019
BCCI joins STOBG
BCCI Construction Company, based on the US West Coast, joins the STOBG family of builders.
Layton joins STOBG
Layton Construction, based in Utah, joins the STOBG family of builders.
$7.9B
STOBG Revenue
Building Conversations Podcast Launches
2020
Abbott Construction joins STOBG
Abbott Construction, based in Seattle, joins the STOBG family of builders.
$8.1B
STOBG Revenue
STOBG Ranked #7
Top 400 Contractors
STOBG Safety Council Established
The Safety Council includes STOBG leadership, industry partners, and clients committed to fostering our strong safety culture.
2021
RC Andersen joins STOBG
RC Andersen, based in New Jersey, joins the STOBG family of builders.
STO Mission Critical Established
STO Mission Critical brings together experts from across the company who have been leading data center construction for decades.
$9.5B
STOBG Revenue
STOBG Ranked #6
Top 400 Contractors
2022
$10.4B
STOBG Revenue
STOBG Ranked #4
Top 400 Contractors
Superintendent Academy Established
The Superintendent Academy aims to promote the professional and personal growth of our field staff, including specialized training and networking opportunities.
2023
$11.1B
STOBG Revenue
STOBG Ranked #5
Top 400 Contractors
First STOBG Safety 360 Awards of Excellence Presented
The program recognizes project teams that went above and beyond to foster a safety culture.
2024
$11.5B
STOBG Revenue
STOBG Ranked #6
Top 400 Contractors
2025
$16B
STOBG Revenue
STOBG Ranked #6
Top 400 Contractors
2026
$20B
STOBG Revenue
STOBG Ranked #3
Top 400 Contractors