Insights

Strong Market Position Callison, now part of CRTKL and Arcadis, is positioned within a large, global architecture practices with a focus on sustainable and innovative design solutions, which appeals to clients seeking cutting-edge urban development and environmental solutions.

Sustainability Focus The company's affiliation with Arcadis emphasizes a commitment to sustainable design, offering opportunities to collaborate on eco-friendly projects that align with increasing market demand for green building practices.

Potential for Growth With a revenue range of 100 to 250 million dollars and a team size of up to 500 employees, Callison presents growth opportunities in mid-market segments targeting developers, investors, and public entities interested in innovative urban environments.

Launching Digital Initiatives The company's emphasis on digital design innovation provides avenues for selling advanced design technologies, digital planning tools, or consultancy services that enhance project delivery.

Strategic Collaborations The recent merger with CRTKL and Arcadis enables cross-selling of integrated services in architecture, engineering, and consultancy, positioning the company for comprehensive projects that require multi-disciplinary solutions.

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 Seattle, Washington 98101 United States. 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 March 2026, Callison's annual revenue is estimated to be $480K.

What is Callison's SIC code NAICS code?

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Callison's SIC code is 7389 - Business Services, Not Elsewhere Classified NAICS code is 54131 - Architectural Services.

How many employees does Callison have currently?

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As of March 2026, Callison has approximately 332 employees across 3 continents, including North AmericaAsiaEurope. Key team members include Chief Designer: Q. L.President Sole-Propietor: T. C.President: K. V.. 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

Architecture and PlanningWashington, United States201-500 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
Seattle, Washington 98101 United States
Phone number
SIC Code
7389 - Business Services, Not Elsewhere Classified
NAICS Code
54131 - Architectural Services
Founded
1975
Employees
201-500

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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