Introducing CallisonRTKL


We’re excited to announce that Callison and RTKL have officially joined forces as CallisonRTKL. Blending the best of two similar mindsets, our new identity builds on our strong legacies, our global presence and the creativity of our people.

You’ll see a lot more from us in the coming weeks, including a new website and social media channels, but one thing remains steadfast: our commitment to creating a better world for our clients, our communities and our people.

Although we’ve doubled in size as a result of the marriage, we don’t rely on sheer numbers to define who we are. That springs from our fresh thinking, bold ideas and new ways of solving problems. What this means for our clients:

  • Expanded coast-to-coast workplace service capabilities with the addition of New York City, Seattle and Mexico City offices
  • World-class branding and environmental design capabilities that complement our strategic workplace team
  • Comprehensive mission critical design and consultancy group blends RTKL’s innovative and award-winning mission critical engineers with Callison’s expert mission critical architects

We’d love to have the opportunity to meet with you to discuss ways in which CallisonRTKL stands apart. In the meantime, here’s a brief video from CallisonRTKL President and CEO Lance K. Josal FAIA:

About CallisonRTKL
For more than five decades, Callison and RTKL have created some of the world’s most memorable and successful environments for developers, retailers, investors, institutions and public entities. In 2015, our two practices came together under the Arcadis umbrella, expanding our sphere of influence and the depth and breadth of our resources. Our team is comprised of more than 2,000 creative, innovative professionals throughout the world who are committed to advancing our clients’ businesses and enhancing quality of life.

ARCADIS is the leading global natural and built asset design and consultancy firm working in partnership with our clients to deliver exceptional and sustainable outcomes through the application of design, consultancy, engineering, project and management services. ARCADIS differentiates through its talented and passionate people and its unique combination of capabilities covering the whole asset life cycle, its deep market sector insights and its ability to integrate health & safety and sustainability into the design and delivery of solutions across the globe. We are 22,000 people that generate more than €3 billion in revenues. We support UN-Habitat with knowledge and expertise to improve the quality of life in rapidly growing cities around the world. Please visit: