John Major
Principal, Mission Critical Sector Leader
What does it take to shape the future? Our Mission Critical team is at the forefront, designing high-performing, adaptable facilities that meet today’s demands and power tomorrow’s breakthroughs. By leveraging emerging technologies and early-stage collaboration, we deliver faster, smarter, and more resilient solutions, working alongside our clients to anticipate their needs. From Fortune 100 companies to Tier-1 research institutions, our thought leaders combine bold ideas with specialized expertise spanning data centers, aerospace, and energy to deliver transformative designs.
Our experts combine inquisitive analysis and proactive insight to deliver innovative, high-performing solutions that meet the demands of rapidly advancing technologies.
3M
ARAMCO
AWS
Abu Dhabi National Oil Corporation (ADNOC)
Advanced Micro Devices (AMD)
Akridge
Amelang Partners
American Tower Corporation
Apple
Applied Materials
Aramco Services
Archway Properties
Arkema
Atmel
Austin Bergstrom International Airport (ABIA)
Baker Oil Tools
Ball Aerospace / BAE Systems
Bank of America
Baylor College of Medicine
Boeing (SpectroLab)
Bois d’Arc Energy
Celanese
CenterPoint Energy
Charles Schwab
Chevron Phillips Chemicals
Cisco Systems
Citadel Data Centers
Citi
City of Austin
ClayDesta Corporation
Cologix
CompuDynamics
Computer Sciences Corporation
Confidential Financial Services Client
Confidential Semiconductor Clients (Various)
ConocoPhillips
Continental Structural Plastics
Core Scientific
Corporate Office Properties Trust (COPT)
Crane Data Centers
Cullen/Frost Bankers
Cypress Semiconductor
CyrusOne Data Centers
Dallas Semiconductor
Dell
Digital Realty
Dominion Energy
DuPont Photomasks (Toppan)
Dynamex
Electric Reliability Council of Texas (ERCOT)
Employers General
Entergy
Enterprise Products Company
Equinix
Ethicon
ExxonMobil
FUJITSU
Frito-Lay
Frost Bank
General Electric
Heliovolt
Hewlett-Packard
Hoerbiger Corporation
Hospira (Abbott Labs)
Hospital Corporation of America (HCA)
Huntington National Bank
IBM Corporation
Infomart Data Centers
Intel
Investax Management / Plante Properties
Investco
i2 Technologies
iFly
Janssen Pharmaceuticals
Kinder Morgan
LSI Logic
Lightedge Data Centers
Liquid Stack
Lockheed Martin
Lonza
Lucent Technologies
MD Anderson Cancer Center
Meta
Microsoft
Mitsumi Electronics Corporation
Motorola (Freescale)
NASA
NEC Electronics
NTT Communications
New Process Steel
Norvartis (Alcon)
ODATA
OKC Works
ONEOK Partners
OnRamp
Oracle
Petroleum Institute
Photronics
Plexus Scientific Corporation
QTS Data Centers
Raytheon
SAIC
SEMATECH Corporation
ST Microelectronics
Sachem
Samsung
Saudi ARAMCO
Schlumberger
Shell
Sony
Southwest Research Institute
Spansion
Spring Creek
State of Texas
Sulzer Biologics
Sulzer Orthopedics
TEAM Industrial
Temple-Inland
Texas A&M University
Texas A&M University Health Science Center
Texas Commission on Environmental Quality
Texas Facilities Commission
Texas Instruments
The University of Texas Health Science Center Houston
The University of Texas Medical Branch at Galveston
The University of Texas San Antionio
The University of Texas at Austin
Tivoli Systems
Tokyo Electron
TriQuint Semiconductor
US Air Force
US Defense Intelligence Agency
US Department of State
US Federal Reserve
US General Services Administration
United Services Automobile Association (USAA)
University of Georgia
University of Nebraska
Valero
Vantage Data Centers
Verizon
ViaSat
Virgin Galactic
VistaPrint Corporation
Wells Fargo
X-Bow
Z-Colo Data Centers
Zadco
Zayo Group Data Centers
3M
ARAMCO
AWS
Abu Dhabi National Oil Corporation (ADNOC)
Advanced Micro Devices (AMD)
Akridge
Amelang Partners
American Tower Corporation
Apple
Applied Materials
Aramco Services
Archway Properties
Arkema
Atmel
Austin Bergstrom International Airport (ABIA)
Baker Oil Tools
Ball Aerospace / BAE Systems
Bank of America
Baylor College of Medicine
Boeing (SpectroLab)
Bois d’Arc Energy
Celanese
CenterPoint Energy
Charles Schwab
Chevron Phillips Chemicals
Cisco Systems
Citadel Data Centers
Citi
City of Austin
ClayDesta Corporation
Cologix
CompuDynamics
Computer Sciences Corporation
Confidential Financial Services Client
Confidential Semiconductor Clients (Various)
ConocoPhillips
Continental Structural Plastics
Core Scientific
Corporate Office Properties Trust (COPT)
Crane Data Centers
Cullen/Frost Bankers
Cypress Semiconductor
CyrusOne Data Centers
Dallas Semiconductor
Dell
Digital Realty
Dominion Energy
DuPont Photomasks (Toppan)
Dynamex
Electric Reliability Council of Texas (ERCOT)
Employers General
Entergy
Enterprise Products Company
Equinix
Ethicon
ExxonMobil
FUJITSU
Frito-Lay
Frost Bank
General Electric
Heliovolt
Hewlett-Packard
Hoerbiger Corporation
Hospira (Abbott Labs)
Hospital Corporation of America (HCA)
Huntington National Bank
IBM Corporation
Infomart Data Centers
Intel
Investax Management / Plante Properties
Investco
i2 Technologies
iFly
Janssen Pharmaceuticals
Kinder Morgan
LSI Logic
Lightedge Data Centers
Liquid Stack
Lockheed Martin
Lonza
Lucent Technologies
MD Anderson Cancer Center
Meta
Microsoft
Mitsumi Electronics Corporation
Motorola (Freescale)
NASA
NEC Electronics
NTT Communications
New Process Steel
Norvartis (Alcon)
ODATA
OKC Works
ONEOK Partners
OnRamp
Oracle
Petroleum Institute
Photronics
Plexus Scientific Corporation
QTS Data Centers
Raytheon
SAIC
SEMATECH Corporation
ST Microelectronics
Sachem
Samsung
Saudi ARAMCO
Schlumberger
Shell
Sony
Southwest Research Institute
Spansion
Spring Creek
State of Texas
Sulzer Biologics
Sulzer Orthopedics
TEAM Industrial
Temple-Inland
Texas A&M University
Texas A&M University Health Science Center
Texas Commission on Environmental Quality
Texas Facilities Commission
Texas Instruments
The University of Texas Health Science Center Houston
The University of Texas Medical Branch at Galveston
The University of Texas San Antionio
The University of Texas at Austin
Tivoli Systems
Tokyo Electron
TriQuint Semiconductor
US Air Force
US Defense Intelligence Agency
US Department of State
US Federal Reserve
US General Services Administration
United Services Automobile Association (USAA)
University of Georgia
University of Nebraska
Valero
Vantage Data Centers
Verizon
ViaSat
Virgin Galactic
VistaPrint Corporation
Wells Fargo
X-Bow
Z-Colo Data Centers
Zadco
Zayo Group Data Centers
3M
ARAMCO
AWS
Abu Dhabi National Oil Corporation (ADNOC)
Advanced Micro Devices (AMD)
Akridge
Amelang Partners
American Tower Corporation
Apple
Applied Materials
Aramco Services
Archway Properties
Arkema
Atmel
Austin Bergstrom International Airport (ABIA)
Baker Oil Tools
Ball Aerospace / BAE Systems
Bank of America
Baylor College of Medicine
Boeing (SpectroLab)
Bois d’Arc Energy
Celanese
CenterPoint Energy
Charles Schwab
Chevron Phillips Chemicals
Cisco Systems
Citadel Data Centers
Citi
City of Austin
ClayDesta Corporation
Cologix
CompuDynamics
Computer Sciences Corporation
Confidential Financial Services Client
Confidential Semiconductor Clients (Various)
ConocoPhillips
Continental Structural Plastics
Core Scientific
Corporate Office Properties Trust (COPT)
Crane Data Centers
Cullen/Frost Bankers
Cypress Semiconductor
CyrusOne Data Centers
Dallas Semiconductor
Dell
Digital Realty
Dominion Energy
DuPont Photomasks (Toppan)
Dynamex
Electric Reliability Council of Texas (ERCOT)
Employers General
Entergy
Enterprise Products Company
Equinix
Ethicon
ExxonMobil
FUJITSU
Frito-Lay
Frost Bank
General Electric
Heliovolt
Hewlett-Packard
Hoerbiger Corporation
Hospira (Abbott Labs)
Hospital Corporation of America (HCA)
Huntington National Bank
IBM Corporation
Infomart Data Centers
Intel
Investax Management / Plante Properties
Investco
i2 Technologies
iFly
Janssen Pharmaceuticals
Kinder Morgan
LSI Logic
Lightedge Data Centers
Liquid Stack
Lockheed Martin
Lonza
Lucent Technologies
MD Anderson Cancer Center
Meta
Microsoft
Mitsumi Electronics Corporation
Motorola (Freescale)
NASA
NEC Electronics
NTT Communications
New Process Steel
Norvartis (Alcon)
ODATA
OKC Works
ONEOK Partners
OnRamp
Oracle
Petroleum Institute
Photronics
Plexus Scientific Corporation
QTS Data Centers
Raytheon
SAIC
SEMATECH Corporation
ST Microelectronics
Sachem
Samsung
Saudi ARAMCO
Schlumberger
Shell
Sony
Southwest Research Institute
Spansion
Spring Creek
State of Texas
Sulzer Biologics
Sulzer Orthopedics
TEAM Industrial
Temple-Inland
Texas A&M University
Texas A&M University Health Science Center
Texas Commission on Environmental Quality
Texas Facilities Commission
Texas Instruments
The University of Texas Health Science Center Houston
The University of Texas Medical Branch at Galveston
The University of Texas San Antionio
The University of Texas at Austin
Tivoli Systems
Tokyo Electron
TriQuint Semiconductor
US Air Force
US Defense Intelligence Agency
US Department of State
US Federal Reserve
US General Services Administration
United Services Automobile Association (USAA)
University of Georgia
University of Nebraska
Valero
Vantage Data Centers
Verizon
ViaSat
Virgin Galactic
VistaPrint Corporation
Wells Fargo
X-Bow
Z-Colo Data Centers
Zadco
Zayo Group Data Centers
3M
ARAMCO
AWS
Abu Dhabi National Oil Corporation (ADNOC)
Advanced Micro Devices (AMD)
Akridge
Amelang Partners
American Tower Corporation
Apple
Applied Materials
Aramco Services
Archway Properties
Arkema
Atmel
Austin Bergstrom International Airport (ABIA)
Baker Oil Tools
Ball Aerospace / BAE Systems
Bank of America
Baylor College of Medicine
Boeing (SpectroLab)
Bois d’Arc Energy
Celanese
CenterPoint Energy
Charles Schwab
Chevron Phillips Chemicals
Cisco Systems
Citadel Data Centers
Citi
City of Austin
ClayDesta Corporation
Cologix
CompuDynamics
Computer Sciences Corporation
Confidential Financial Services Client
Confidential Semiconductor Clients (Various)
ConocoPhillips
Continental Structural Plastics
Core Scientific
Corporate Office Properties Trust (COPT)
Crane Data Centers
Cullen/Frost Bankers
Cypress Semiconductor
CyrusOne Data Centers
Dallas Semiconductor
Dell
Digital Realty
Dominion Energy
DuPont Photomasks (Toppan)
Dynamex
Electric Reliability Council of Texas (ERCOT)
Employers General
Entergy
Enterprise Products Company
Equinix
Ethicon
ExxonMobil
FUJITSU
Frito-Lay
Frost Bank
General Electric
Heliovolt
Hewlett-Packard
Hoerbiger Corporation
Hospira (Abbott Labs)
Hospital Corporation of America (HCA)
Huntington National Bank
IBM Corporation
Infomart Data Centers
Intel
Investax Management / Plante Properties
Investco
i2 Technologies
iFly
Janssen Pharmaceuticals
Kinder Morgan
LSI Logic
Lightedge Data Centers
Liquid Stack
Lockheed Martin
Lonza
Lucent Technologies
MD Anderson Cancer Center
Meta
Microsoft
Mitsumi Electronics Corporation
Motorola (Freescale)
NASA
NEC Electronics
NTT Communications
New Process Steel
Norvartis (Alcon)
ODATA
OKC Works
ONEOK Partners
OnRamp
Oracle
Petroleum Institute
Photronics
Plexus Scientific Corporation
QTS Data Centers
Raytheon
SAIC
SEMATECH Corporation
ST Microelectronics
Sachem
Samsung
Saudi ARAMCO
Schlumberger
Shell
Sony
Southwest Research Institute
Spansion
Spring Creek
State of Texas
Sulzer Biologics
Sulzer Orthopedics
TEAM Industrial
Temple-Inland
Texas A&M University
Texas A&M University Health Science Center
Texas Commission on Environmental Quality
Texas Facilities Commission
Texas Instruments
The University of Texas Health Science Center Houston
The University of Texas Medical Branch at Galveston
The University of Texas San Antionio
The University of Texas at Austin
Tivoli Systems
Tokyo Electron
TriQuint Semiconductor
US Air Force
US Defense Intelligence Agency
US Department of State
US Federal Reserve
US General Services Administration
United Services Automobile Association (USAA)
University of Georgia
University of Nebraska
Valero
Vantage Data Centers
Verizon
ViaSat
Virgin Galactic
VistaPrint Corporation
Wells Fargo
X-Bow
Z-Colo Data Centers
Zadco
Zayo Group Data Centers
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In 2023, Building Design + Construction recognized us among the top 3 firms in architecture and engineering. Our mission-critical expertise delivers high-performance environments that support essential industries with reliability, innovation, and technical excellence.
We’ve completed 200+ energy projects worldwide over the past 20 years, from grid modernization to advanced storage. Our experts deliver reliable infrastructure for a rapidly evolving sector.
Supporting Fortune 10 clients, the Mission Critical team is a strategic advisor to some of the most recognizable names in the industry.
Ranked among the top 10 data center architecture firms by Building Design + Construction in 2024, we design scalable, efficient, and resilient data centers. Our high-performance environments support evolving digital demands while prioritizing sustainability and security.
Over the past decade, we’ve designed data centers with a combined construction value of over $10.5 billion. Our work spans hyperscale, colocation, and enterprise facilities, delivering future-ready solutions.
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Complex challenges need fresh perspectives and deep expertise. Connect with our team to explore how we can help you create spaces that make a real difference.