Insights

Strategic Expansion Callison recently joined Arcadis, creating one of the world’s largest architecture practices with enhanced scale in sustainable design, social impact, and digital innovation. This signals expanded capabilities and potential for cross-sell of integrated services to large developers, public entities, and institutions seeking holistic urban solutions.

Sustainability Focus The combined strength with Arcadis emphasizes sustainable design and consultancy for natural and built assets, presenting a compelling value proposition to clients prioritizing green certifications, ESG goals, and resilient infrastructure.

Regional Partnerships Recent news of Mountain View Egypt partnering with Callison highlights opportunities to pursue international collaborations and flagship projects in emerging markets where the firm’s expanded platform can offer design, engineering, and project delivery at scale.

Financial Alignment Revenue in the mid-range of hundreds of millions positions Callison as a mid-to-large firm with budget capacity for multi-project pursuits, strategic retainer engagements, and bidding on sizeable urban development and retail/institutional commissions.

Competitive Positioning As part of a global design and consultancy leader, Callison can differentiate on integrated solutions, digital design capabilities, and sustainable outcomes to compete with major firms like Gensler, leveraging Arcadis' network to win larger, complex commissions.

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

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.

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 July 2026, Callison has approximately 331 employees across 3 continents, including North AmericaAsiaEurope. Key team members include Chief Designer: Q. L.Associate Vice President, Senior Project Manager: M. H. 何.Associate Director/Senior Architect: F. Z.. 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

Section iconFunding & Financials

  • $100M$250M

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

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