ACA2025

Now Accepting Poster Abstracts!  

Join us for the 75th Annual Meeting of the American Crystallographic Association, July 18–23, 2025, in Lombard, Illinois! This milestone event will feature cutting-edge research, networking opportunities, and a keynote by Dr. Stephen K. Burley.

Hosted at The Westin Lombard Yorktown Center, the conference offers a prime location near Chicago’s cultural and scientific hubs. Registration and abstract submissions are now open—don’t miss your chance to be part of this premier structural science gathering! Visit the official website for details.

Registration Information

Abstract Submission

Hotel Reservations 

Experience World-Class Science Up Close

The ACA is excited to announce a unique opportunity for ACA 2025 attendees — a field trip to the Advanced Photon Source (APS) at Argonne National Laboratory!

APS is one of the most powerful synchrotron radiation facilities in the world, enabling breakthroughs in materials science, biology, chemistry, and physics. This guided visit offers a behind-the-scenes look at beamlines, experimental stations, and the revolutionary upgrade that’s pushing the boundaries of crystallographic research.

Register Now 

A Diamond Celebration: 75 Meetings in Perfect Symmetry

Join us for a memorable evening cruise as we close our 75th Annual Meeting in style. Aboard the Spirit of Chicago, we’ll toast decades of innovation, collaboration, and progress—with fine dining, entertainment, and panoramic skyline views from Lake Michigan. Like a diamond—enduring and multifaceted—our community shines through the decades.

This special banquet is included with your meeting registration—just be sure to indicate you'll be attending when you sign up. Let’s celebrate our legacy and raise a glass to the future of discovery!

IUCr2026: Calgary, Alberta

Planning for IUCr2026 is progressing rapidly, and we are thrilled to bring you an exceptional congress experience. To ensure you receive the latest updates, announcements, and important details as they become available, we invite you to add your name and email to our Expression of Interest list. Don’t miss a moment as the excitement builds!

Call for Workshops

The International Union of Crystallography (IUCr) is currently accepting applications for workshops. This is a valuable opportunity for researchers, educators, and professionals to contribute to the scientific program by organizing sessions that share knowledge, promote collaboration, and advance the field of crystallography. Interested applicants are encouraged to submit their proposals early.

Call for Workshop Info

Call for Sponsor & Exhibitors Expression of Interest

The IUCr2026 is inviting expressions of interest from potential exhibitors and sponsors for its upcoming events. This is an excellent opportunity for organizations to connect with a global audience in the crystallography community, increase brand visibility, and support the advancement of scientific research. Interested parties are encouraged to express their interest early to explore the range of partnership opportunities available.

Sponsor & Exhibitors Expression of Interest

Where Crystallography Connects: Calgary 2026

We’re thrilled that the 27th Congress and General Assembly of the International Union of Crystallography (IUCr) will take place in Calgary, Alberta, Canada, from August 11–18, 2026.

Set against the breathtaking backdrop of the Canadian Rockies, Calgary is a dynamic city that blends urban energy with natural beauty. From nearby Banff and Lake Louise to its thriving arts and culinary scenes, Calgary offers an unforgettable experience for attendees.

The congress will be hosted at the newly expanded BMO Centre at Stampede Park, a world-class venue in the heart of the city’s entertainment district.

Save the dates and join us in Calgary for a truly inspiring scientific gathering—surrounded by some of the most spectacular landscapes in the world.