September 14–18, 2026 | Hyatt Regency Grand Cypress, Orlando, Florida,USA
Organised by ION | https://www.ion.org/gnss/
ION GNSS+ [1] is the world’s largest technical meeting and showcase of GNSS technology, products and services. This year’s conference will bring together international leaders in GNSS and related positioning, navigation and timing fields to present new research, introduce new technologies, discuss current policy, demonstrate products and exchange ideas.

Unable to attend in person? ION GNSS+ 2026 will include a virtual option for those who are unable to travel. Virtual Registration offers access to all on-demand conference content, live streams of select sessions, proceedings, as well as recordings of the sessions that were live streamed during the conference.

January 25–28, 2027 | Hyatt Regency Orange County, Anaheim,California, USA

Organised by ION | https://www.ion.org/itm/ |https://www.ion.org/ptti/index.cfm

ION International Technical Meeting (ITM) & Precise Time and Time Interval Systems and Applications Meeting (PTTI) [2] are co-located annual conferences sponsored by ION. ITM features a technical program related to positioning, navigation and timing and includes the ION

Fellows and Annual Awards presentations.

PTTI’s technical program is designed to disseminate and coordinate PTTI information at the user level, review present and future PTTI requirements, inform government and industry engineers, technicians, and managers of precise time and frequency technology and its problems, and provide an opportunity for an active exchange of new technology

associated with PTTI.

A commercial exhibit and pre-conference tutorials are held in conjunction with the conference.

We are pleased to announce the next edition of the European Navigation Conference series, ENC 2026, will take place in Vienna, April 28-30, 2026.

The ENC-series is now widely acknowledged as the most important annual event in Europe bringing together the full positioning, navigation and timing community.

What you can expect at ENC2026:

Technical programme across three days with up to four parallel sessions;

Daily keynote addresses in plenary, bringing the community together;

A friendly and collaborative atmosphere, with opportunities to meet exhibitors and fellow delegates, including informally over drinks and dinner as part of the conference social programme;

An environment to gain insights, grow your network and foster new collaborations.

The ENC-series is a collaboration across the European Group of Institutes of Navigation (EUGIN), with the Austrian Institute of Navigation (OVN) leading ENC 2026 at the Austria Center Vienna (ACV).

The conference will highlight the latest advancements in positioning, navigation and timing. The broad technical program will include all related aspects of technology, science, systems and applications.

ENC-series is open to all from across industry, academia, government and user segments. Whatever your level of knowledge and experience, you will find a warm welcome and have much to gain by joining ENC2026.

We warmly invite you to join us in Vienna. Please do prepare your abstract, review our sponsorship opportunities and save the date to join us.

April 12–15, 2027 | Hilton Portland Downtown, Portland, Oregon, USA
Organised by ION & IEEE AESS | https://www.ion.org/plans/
Position, Location and Navigation Symposium (PLANS) [3] is a biennial technical conference that occurs in the spring of odd numbered years.
Its mission is to provide an international forum to share the latest advances in navigation technology. PLANS is jointly sponsored by the IEEE Aerospace and Electronics Systems Society (AESS) and The Institute of Navigation (ION), the world’s premier non-profit professional society advancing the art and science of positioning, navigation, and timing
(PNT).
PLANS is a four-day conference with the first day hosting tutorials and three days dedicated to technical sessions. Tutorials cover a range of navigation subjects from core fundamentals to in-depth classes on the latest technologies, serving both newcomers and seasoned professionals.
Twenty-four half-day technical sessions are offered over three days,with four sessions running simultaneously each morning and afternoon.
Topics include Inertial Sensing and Technology, Global Navigation Satellite Systems (GNSS), Integrated, Collaborative, and Opportunistic Navigation, and Applications to Automated, Semi-Autonomous, and Fully-Autonomous Systems. Technical papers from PLANS are peer reviewed and published in IEEE Xplore following the conference.
In parallel with the sessions, PLANS hosts a commercial exhibit during which suppliers and service providers showcase their products, innovations and services.