United States
STOBG History
A visual representation of the history of STO Building Group
2016
By 2016, the Structure Tone Organization was a well-known
leader in construction management.
$4B
Structure Tone Organization Revenue
2017
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 Revenue
2018
Ajax joins STOBG
Tallahassee-based Ajax Building LLC, joins the STOBG family of
builders.
$4.9B
STOBG Revenue
2019
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 who went above and beyond
to foster a safety culture.
2024
$11.5B
STOBG Revenue
STOBG Ranked #6
Top 400 Contractors