Insights

Strong Industry Position As part of the combined CRTKL and Arcadis entity, the company is now one of the largest architecture practices globally, with a focus on sustainable and innovative design solutions, presenting opportunities to connect with clients seeking large-scale, environmentally conscious projects.

Sustainability Leadership Recent affiliation with Arcadis highlights a commitment to sustainable urban development, making the company a strategic partner for organizations prioritizing eco-friendly building and city planning initiatives.

Growth & Expansion Operating with a substantial employee base of up to 5,000 and revenue between 100 million and 250 million dollars, the company shows strong growth potential and has capacity for larger or more complex project engagements.

Digital & Design Innovation The firm's focus on social and digital design innovation, combined with arcadis' expertise, opens opportunities for collaboration on cutting-edge urban solutions and smart city developments.

Market Opportunities Comparative analysis with similarly sized competitors indicates a competitive presence in the architecture industry, suggesting potential for expanding into new markets or clients looking for comprehensive, sustainable planning and design services.

Callison Tech Stack

Media & News

Callison's Email Address Formats

Callison uses at least 1 format(s):
Callison Email FormatsExamplePercentage
First.Last@callison.comJohn.Doe@callison.com
84%
FLast@callison.comJDoe@callison.com
14%
First.Middle@callison.comJohn.Michael@callison.com
1%
First-Last@callison.comJohn-Doe@callison.com
1%

Frequently Asked Questions

Where is Callison's headquarters located?

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Callison's main headquarters is located at Suite 2400, Seattle, WA 98101-2343, US. The company has employees across 3 continents, including North AmericaAsiaEurope.

What is Callison's phone number?

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You can contact Callison's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Callison's official website and social media links?

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Callison's official website is callison.com and has social profiles on LinkedIn.

How much revenue does Callison generate?

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As of October 2025, Callison's annual revenue is estimated to be $480K.

What is Callison's NAICS code?

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Callison's NAICS code is 54131 - Architectural Services.

How many employees does Callison have currently?

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As of October 2025, Callison has approximately 1K employees across 3 continents, including North AmericaAsiaEurope. Key team members include Chief Designer: Q. L.President Sole-Propietor: T. C.Founder: R. C.. Explore Callison's employee directory with LeadIQ.

What industry does Callison belong to?

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Callison operates in the Architecture and Planning industry.

What is Callison's email format?

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Callison's email format typically follows the pattern of First.Last@callison.com. Find more Callison email formats with LeadIQ.

When was Callison founded?

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Callison was founded in 1975.
Callison

Callison

Architecture and PlanningUnited States1001-5000 Employees

CRTKL has now joined Arcadis, a global leader in the delivery of sustainable design, engineering and consultancy solutions for natural and built assets. Together, the combined strength of CRTKL and Arcadis creates one of the largest architecture practices in the world, offering the best of sustainable, social, and digital design innovation. We are more committed than ever to solving some of the world’s most complex urban challenges and helping to shape the cities and communities of tomorrow. 

Over the last 75 years, we have created some of the world’s most memorable and successful environments for developers, retailers, investors, institutions, and public entities as CRTKL and we will take forward this legacy together with Arcadis.

Section iconCompany Overview

Headquarters
Suite 2400, Seattle, WA 98101-2343, US
Phone number
NAICS Code
54131 - Architectural Services
Founded
1975
Employees
1001-5000

Section iconMedia & News

Section iconFunding & Financials

  • $100M$250M

    Callison's revenue is estimated to be in the range of $100M$250M

Section iconFunding & Financials

  • $100M$250M

    Callison's revenue is estimated to be in the range of $100M$250M

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