History

History

Introba is the coming together of Integral Group, Ross & Baruzzini, Elementa Engineering, and Elementa Consulting.

Read on to learn more about our firm's legacy through the history and contribution of these and other world-class building engineering, design, and consulting brands that have joined our team throughout the years.

1953

With a degree from MIT in electrical engineering and a doctorate in industrial engineering, Donald Ross, Sc.D., P.E., founded Donald Ross & Associates in 1953 with a goal to elevate engineering service.

In 1961, Joe Baruzzini is hired as Mechanical Principal. Together, Ross and Baruzzini provided high-quality engineering to blue-chip clients that valued smart design and personal service.

With mechanical and electrical engineering services available, Ross & Baruzzini is formed in 1962.

1975
Federal

The US General Services Administration adopts new lighting standards for all federal buildings following a research project led by Ross & Baruzzini.

1976
O'Hare-Airport

Ross & Baruzzini acquires Hanlon & Associates, opening the door for expansion into the aviation marketplace and US market opportunities.

1986
st louis

Ross & Baruzzini enters the rail and transit market when hired as a system engineer for MetroLink, the Greater St. Louis Metropolitan light rail system.

2008
Integral

Integral Group, a new deep green engineering consulting firm, is founded by Kevin Hydes.

2009

In an effort to better serve their international clients, Sidara (formerly Dar Group) acquires Ross & Baruzzini for its expertise in technology and breadth of services.

2009
Oakland

Rumsey Engineers joins Integral Group in Oakland, California, expanding its MEP and building performance practice.

2011
The city of Vancouver seen at sunset, looking westwards

Integral Group launches in Vancouver and Toronto when Cobalt Engineering joins the firm, expanding their MEP and consulting services.

2012
elementa

Elementa Consulting becomes a member of Integral Group with offices in London and Oxford, UK, expanding their building engineering and consulting services.

2013
J Craig Venter

Integral Group project, J. Craig Venter Institute in La Jolla, California, is the first certified Net Zero Energy completed lab in the world.

2013
Just

Integral Group is the first engineering firm to receive a JUST Label.

2013
WELL

Integral Group helps launch pilot of WELL Building Standard, which sets performance requirements for all building types (commercial, institutional, residential, core and shell, and tenant improvements) in seven categories: air, water, nourishment, light, fitness, comfort, and mind. 

2013
Macro

Macro becomes a part of Ross & Baruzzini family in 2013, expanding their systems engineering services.

2014
Loop Student Living Initiative

Washington University Loop Student Living Initiative becomes Ross & Baruzzini's first LEED Platinum-certified project.

2014
Exploratorium

Integral Group project, the San Francisco Exploratorium, becomes LEED Platinum, zero net energy and net zero carbon certified. It is the world’s largest public zero energy museum (at time of certification).

2015
Canada

Integral Group achieves 50 net zero energy-designed projects.

2015
DVS

DVS joins Ross & Baruzzini in 2015, further strengthening the firm's position as a trusted leader in the global security industry.

2016
DPR-Headquarters

Integral Group project, DPR Construction's office, is the first net zero energy-certified commercial building in San Francisco.

2016
mitchell

Mitchell Planning joins Ross & Baruzzini in 2016. Mitchell Planning has a diverse and comprehensive portfolio of medical equipment planning, procurement, installation, and relocation services. They have successfully completed more than 900 projects and planned more than $5 billion worth of medical equipment. 

2016
Vancouver skyline in the summer, looking across Stanley Park

Vancouver-based firm JM Bean & Co. partners with Integral Group and has expanded its mechanical engineering practice.

2017
sydney cbd

Integral Group opens its office in Sydney, Australia.

2017
CAGE

Ross & Baruzzini acquires CAGE, Inc. in 2017, bringing specialized engineering focused on automated baggage handling systems, passenger boarding bridges, ground support services, and aircraft parking design.

2018
S&T Data Centers

Ross & Baruzzini acquires EDI, Ltd. based in Atlanta, Georgia. EDI is a leading technology consulting and design firm that provides advisory services, technology system design, data center-specific services, and technology program management for various types of technology projects in the healthcare, corporate, education, and commercial markets.

2019
umow lai

Integral Group acquires Umow Lai, expanding their MEP and fire engineering, technology (ICT), and sustainability (ESD) consultancy in Sydney, Brisbane, and Melbourne.

2019
COM

Ross & Baruzzini acquires COMgroup in 2019. COMgroup also has a strong history of public sector work and became known as public sector experts through our abundance of projects.

2019
Genesis

Genesis Planning, a Texas-based medical equipment planning and consulting firm, joins Ross & Baruzzini, bringing in relationships in 17 countries with global projects that span North America, South and Central Americas, Europe, the Middle East, Asia, Africa, and the Caribbean.

2019
Belgrade Serbia

Prleks, a well-established firm founded in 1990, joins the Integral Group family with an impressive portfolio of projects in Serbia, across Europe, and in Asia. They have worked with world-class clients, architects, and design houses, and share a commitment to engineering excellence, quality, and client service, with a passion for protecting the environment.

2022
Introba

Ross & Baruzzini and Integral Group come together under new brand, Introba, to meet increasing global demand for sustainable, resilient engineering.