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Home » Authors » Jonathan Keller
Jonathan Keller

Jonathan Keller

Jonathan Keller is ENR's Associate Editor for company surveys and rankings. He works on ENR’s Top Lists, collecting, cleaning and analyzing data. Jonathan has a background in data analytics, freelance writing and tragic sports fandom. A native of Buffalo (and therefore a Bills and Sabres fan), he now lives in New York City.
Articles

ARTICLES

1028_Top600_1170_ENRwebready.jpg

ENR 2024 Top 600 Specialty Firms: Contractor Collaboration Shines

Emell Adolphus
Emell D. Adolphus
Jonathan Keller
Jonathan Keller
October 24, 2024
No Comments

Revenue reaches a third consecutive year of double-digit growth with a focus on teamwork, recruitment and retention.


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Lawrence Berkeley National Laboratory welcome center

ENR 2024 Top 100 Green Design Firms and Contractors

Emell Adolphus
Emell D. Adolphus
Jonathan Keller
Jonathan Keller
October 10, 2024
No Comments

Even before projects reach the shovel-ready phase, a “business as usual” mindset can stunt sustainability goals, says John Delaney, sustainability director at Beyer Blinder Belle Architects & Planners.


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Construction Industry Confidence Index
Confidence Index

3Q 2024 Cost Report: Construction Exec Confidence Largely Unchanged

Jonathan Keller
Jonathan Keller
September 25, 2024
No Comments

Although CFMA CFOs see a brighter outlook for 2025.


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$570-million US 69 project in Kansas

ENR Top 400 Sourcebook: Firms Feel Pinch for Profitability

Contractor revenue rises, but firms say higher risks and longer lead times are driving more investment in preconstruction
Emell Adolphus
Emell D. Adolphus
Jonathan Keller
Jonathan Keller
September 19, 2024
No Comments

For the second consecutive year, Top 400 revenue has increased by a double-digit percentage—rising 13.9% to $556.9 billion from $488.98 billion last year while median firm revenue is also up 10.9% to $629.5 million.


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Cairo Monorail in Egypt

2024 ENR Top 250 International Contractors: Contractors Balance Higher Risks

Top 250 revenue rises 16.6% as the ripples of inflation, supply chain disruptions, climate change and regional conflict shift pain points and profitability.
Emell Adolphus
Emell D. Adolphus
Jonathan Keller
Jonathan Keller
September 11, 2024
No Comments

Revenue for the Top 250 International Contractors is at its highest since 2015, rising to $499.7 billion last year.


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M City project

2024 ENR Top 225 International Design Firms: Firms Step Up Value Engineering

Emell Adolphus
Emell D. Adolphus
Jonathan Keller
Jonathan Keller
Peter Reina
Peter Reina
August 28, 2024
No Comments

Project goals can be a moving target amid intensifying inflation, climate change and supply chain disruptions roiling the global marketplace, say this year’s Top 225 International Design Firms.


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ENR 2024 Confidence Index
Confidence Index

2Q 2024 Cost Report: Private Financing Woes Cut Confidence

Stubbornly high interest rates lessen demand for construction services
Jonathan Keller
Jonathan Keller
June 27, 2024
No Comments

The results of this quarter’s Construction Industry Confidence Index survey show a dip in confidence among construction industry executives.


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JFK Airport Terminal One

ENR Top Professional Services Firms: Skill Shortages Raise the Stakes

Emell Adolphus
Emell D. Adolphus
Jonathan Keller
Jonathan Keller
June 26, 2024
No Comments

In response to ongoing labor challenges across the AEC industry, ENR Top 100 Professional Services Firms are reconfiguring operations to recruit helping hands where they need it most.


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Gensler tops architectural design ranking.png
Companies

What's Different About Gensler, the Largest Global Architect?

Richard Korman.jpeg
Richard Korman
Jonathan Keller
Jonathan Keller
June 17, 2024
No Comments

List leader on the latest Architectural Record Top 300 architecture firms survey, ranked by revenue, has expanded use of co-chiefs for its top two executive roles.



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Boat Harbor Pump Station to the Nansemond Treatment Plant

ENR Top Project Delivery Firms: Firms Say Early Collaboration Makes Gains

Emell Adolphus
Emell D. Adolphus
Jonathan Keller
Jonathan Keller
June 12, 2024
No Comments

Firm revenue rises as more owners shift to collaborative project delivery methods that can increase flexibility, but risks remain.


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View All Articles by Jonathan Keller
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