Insights

Sustainable scale Callison CRTKL recently joined Arcadis, forming one of the largest architecture practices globally with a strong emphasis on sustainable design, social impact, and digital innovation. This indicates a broader capability set to offer integrated sustainability-driven architecture and planning services to prospective clients.

Expanded capabilities Post-merger, the combined firm can pitch comprehensive solutions across urban design, infrastructure, and built assets, appealing to developers, institutions, and public sector clients seeking end-to-end design and consultancy.

Financial potential Current revenue is in the mid-range ($100M–$250M) with a sizable employee base, suggesting capacity to take on mid-to-large scale projects and potentially cross-sell Arcadis’ engineering and consultancy services.

Notable partnerships Recent collaboration with Mountain View signals ongoing new business development and coast-to-coast or regional partnerships, presenting opportunities to target similar clients or geographies with joint capabilities.

Competitive positioning As part of a global, multi-disciplinary platform with strong sustainability credentials, Callison CRTKL competes with firms like Gensler and FRCH Nelson for major urban development and retail/institutional projects, indicating a strong value proposition in integrated, transformative design.

Similar companies to Callison

Callison's Email Address Formats

Callison uses at least 4 email formats:
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

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 2026, Callison's annual revenue is estimated to be $100M - $250M.

What is Callison's SIC code and NAICS code?

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

How many employees does Callison have currently?

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As of October 2026, Callison has approximately 330 employees across 5 continents, including North America, Asia and Europe. Key team members include Chief Designer: Q. L., Owner: D. C. and Associate Vice President, Senior Project Manager: M. H. 何. 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 logo

Callison

Architecture and PlanningWashington, United States201-500 Employees

Callison is a mid-sized architecture and planning firm based in Seattle, Washington. It operates within the architecture and planning industry and employs several hundred staff. The company maintains a website at callison.com for information about its work and services.
In September 2024, Mountain View Egypt partnered with Callison and DH to advance a project, illustrating ongoing international collaboration. This development signals the firm’s involvement in cross-border design initiatives.

Section iconCompany Overview

Phone number
SIC Code
7389 - Business Services, Not Elsewhere Classified
NAICS Code
54131 - Architectural Services
Founded
1975
Employees
201-500

Section iconFunding & Financials

  • $100M - $250M

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

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