CallisonRTKL Inc.

What CallisonRTKL Inc. does

CallisonRTKL Inc. is a global architecture, planning, and design firm founded in 1946 and headquartered in Dallas, United States. The firm employs 1,001–5,000 professionals and operates within Arcadis N.V.'s broader Architecture and Urbanism service line, delivering integrated design for highly regulated, complex building programs.

The firm's work spans sustainable high-rise residential (e.g., a 60-story Passive House-scale tower in Vancouver with 501 units, 25% designated as social housing), master-planned waterfront communities subject to aviation glide-slope and flood-resilience constraints, and government infrastructure analytics platforms. Delivery is supported by digital tools and partnerships — notably an Autodesk collaboration enabling AI-assisted identification of hidden structural elements and Whole Life Carbon Assessments that delivered a 54% concrete emissions reduction for an automotive client. No proprietary technology platforms or standalone productized offerings are disclosed in the source material.

The business model is project-based professional services revenue tied to design fees on large-scale commercial, residential, and public-sector commissions. Geographic reach spans North America (USA, Canada) and EMEA (Netherlands), with cross-disciplinary collaboration across structural, mechanical, electrical, and geotechnical disciplines. Pricing specifics are not disclosed; the firm is privately held and operates as part of Arcadis N.V.'s publicly traded parent structure.

Name

CallisonRTKL Inc.

Legal name

Arcadis N.V.

Website

https://callisonrtkl.com

Company type

Public

Founded year

1946

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

CallisonRTKL Inc. is a global architecture, planning, and design firm founded in 1946 and headquartered in Dallas, employing 1,001–5,000 professionals to deliver sustainable, large-scale building and urban design projects across North America and EMEA as part of Arcadis N.V.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (54131), Landscape Architectural Services (54132), Interior Design Services (54141)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industry

Landscape Architecture & Site Design (BPAHAKAC)

Keywords

• Architecture design
• Urban planning
• Interior design
• Sustainable design
• Master planning

Headquarters

HQ city

Dallas

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Core offering

CallisonRTKL is a global architecture, planning and design firm delivering architectural, interior, urban design, and master planning services for complex building projects. The firm operates as part of Arcadis's global network of designers, engineers, and digital specialists, providing integrated design and engineering for commercial, residential, hospitality, and public-sector clients.

Differentiator

Problem solved

Functional benefit

Products and services

• Architecture
• Interiors
• Planning, Landscaping, and Urban Design

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators1 record

Recent moves4 records

Expansion highlights4 records

Broad incumbents

• Gensler: Gensler is the largest global architecture and design firm, delivering integrated architecture, interior, planning, and brand-design services across commercial, hospitality, and residential segments. Directly comparable to CallisonRTKL in offering breadth and global project scale.
• HOK: HOK is a global design, architecture, engineering, and planning firm with practice areas spanning commercial, healthcare, aviation, and sports. Closely comparable to CallisonRTKL in multi-disciplinary, large-scale project delivery and global footprint.
• AECOM (Architecture practice): AECOM is a global infrastructure consulting firm with a substantial architecture practice spanning urban design, transit-oriented development, and large civic projects. Comparable to CallisonRTKL through Arcadis's similar positioning as an integrated design-and-engineering platform.

Direct peers

• Perkins&Will: Perkins&Will is an architecture and design firm with strong sustainability credentials (LEED, Living Building Challenge) and practices across healthcare, education, commercial, and urban design. Highly comparable to CallisonRTKL's high-performance, sustainability-led project portfolio.
• Skidmore, Owings & Merrill (SOM): SOM is a leading global architecture, engineering, and urban-planning firm known for supertall towers, master planning, and integrated sustainable design. Directly comparable to CallisonRTKL on the high-rise and master-planning mandates visible in the project portfolio.
• HKS Architects: HKS is a global architecture firm with major practices in healthcare, sports, education, and urban mixed-use development. Comparable to CallisonRTKL in large-institutional, complex-program design commissions.
• NBBJ: NBBJ is an architecture and design firm focused on healthcare, corporate, and science & technology facilities, with deep sustainability research. Comparable to CallisonRTKL on integrated design, large institutional clients, and sustainability-led practice.
• Foster + Partners: Foster + Partners is a global studio for architecture, urbanism, and design with a strong sustainability agenda (similar Passive House and net-zero pursuits as The Curv). Comparable to CallisonRTKL on signature high-rise and master-planning work.
• KPF (Kohn Pedersen Fox): KPF is a global architecture firm specializing in supertall towers, mixed-use developments, and master planning for urban districts. Closely comparable to CallisonRTKL's high-rise residential and large mixed-use commissions.

Regional players

• Populous: Populous is a global architecture firm specializing in sports venues, convention centers, and large entertainment districts. Comparable to CallisonRTKL on the scale and complexity of public-facing, high-stakeholder project delivery, though narrower in sector focus.

Market position

Strengths4 records

Weaknesses2 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

• Xx.com/CallisonRTKL
• Facebookfacebook.com/CallisonRTKL

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A2 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about CallisonRTKL Inc.