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CallisonRTKL (CRTKL) is a global architecture, planning, and design practice. Formed from the merger of Callison and RTKL Associates, and now operating as a key practice within Arcadis, the firm is dedicated to creating more resilient, equitable, and sustainable environments. CRTKL specializes in a wide array of sectors including retail, commercial, healthcare, residential, mixed-use, workplace, hospitality, and urban planning. Their work is driven by a human-centric approach, aiming to enhance the human experience and deliver impactful solutions for clients and communities worldwide.
Serves as a major design and project management hub, supporting a wide range of projects across North America and globally. It houses design studios, client engagement teams, and administrative functions.
The Baltimore office is situated in a historically significant area, reflecting the firm's longstanding presence and commitment to urban revitalization. The space is designed to foster collaboration and innovation.
Characterized by a collaborative, creative, and forward-thinking environment. Employees often engage in multidisciplinary teams, focusing on sustainable design and innovative solutions to complex challenges.
Represents the historical roots of RTKL and continues to be a vital center for the firm's talent and operations in the Mid-Atlantic region, contributing to many landmark projects.
CallisonRTKL supports a comprehensive suite of functions globally, including architectural design, interior design, master planning, urban design, environmental graphic design, and strategic consulting. Their worldwide network of offices allows them to manage complex projects across diverse geographic markets, ensuring local relevance while drawing on global expertise in sectors like retail, healthcare, hospitality, residential, commercial, and mixed-use developments. This global footprint enables seamless collaboration and knowledge sharing across regions.
120 E Baltimore St
Baltimore
MD
USA
Address: 2101 L Street NW, Suite 200, Washington, DC 20037, USA
Serves as a strategic center for design and project delivery in the National Capital Region and beyond, leveraging expertise in governmental and institutional sectors.
Address: Clove Building, 4 Maguire Street, London, SE1 2NQ, UK
Drives design innovation and project execution for the EMEA region, adapting global trends to local market needs and cultural contexts.
Address: Unit 01-03, 35F, Park Place Office Tower, 1601 Nanjing Road West, Jing'an District, Shanghai 200040, China
Facilitates CallisonRTKL's extensive work in the rapidly growing Asian market, providing localized design solutions and project management.
Address: Office 2501, Level 25, Jumeirah Business Centre 1, JLT, Cluster G, Dubai, UAE
Supports clients in the dynamic Middle East and North Africa (MENA) region, delivering iconic and culturally relevant design solutions.
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As of April 2025, RTKL' leadership includes:
RTKL has been backed by several prominent investors over the years, including:
CallisonRTKL, as part of Arcadis, sees leadership movements aligned with strategic goals. Recent notable activities often focus on strengthening global practice areas and regional leadership. Specific high-profile changes directly within CallisonRTKL's top-tier leadership distinct from Arcadis global announcements are periodically announced via industry press and company updates.
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CallisonRTKL, as part of Arcadis, primarily uses email formats based on employee names. The most common structure is the first initial followed by the last name, or first name separated from the last name by a period.
[first_initial][last]@callisonrtkl.com or [first].[last]@callisonrtkl.com
Format
jdoe@callisonrtkl.com
Example
85%
Success rate
Commercial Observer • April 8, 2024
Brookfield Properties has enlisted architecture firm CallisonRTKL to design the redevelopment of the former Metro station park-and-ride at the Allen Road interchange in Toronto. The project aims to transform the 9.2-acre site into a mixed-use community....more
Hotel Business • November 20, 2023
CallisonRTKL (CRTKL) has appointed Clay Markham to lead its global hospitality practice. With nearly three decades of experience, Markham will focus on strategic growth and innovation within the sector....more
PR Newswire • October 17, 2023
CallisonRTKL (CRTKL), a global architecture and design firm, today released its annual sustainability report, highlighting the firm's progress on its journey to becoming a more sustainable and regenerative practice....more
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