International Optical Technologies Association formerly known as the International Hologram Manufacturers Association (IHMA is made up of over 70 of the world’s leading suppliers of optical technologies who actively cooperate to maintain the highest professional, security and quality standards in support of their customers.

Founded in 1993 to represent the interests of hologram manufacturers and the hologram industry worldwide it has expanded in 2024 to represent suppliers of all optical technologies. The association is dedicated to helping users achieve their commercial, aesthetic and authentication objectives through the effective use of holography and other optical technologies.

IOTA membership confers authenticity and credibility on companies that join – all of which are rigorously vetted and adhere to a strict Code of Practice governing standards, business ethics, customer service, respect for and protection of customers’ and each other’s’ intellectual property.

The IOTA is a not-for-profit membership organisation registered in the UK, liability limited by guarantee.