The Internationale Graanoverslag Maatschappij Amsterdam, better known as IGMA, was founded in 1959. It is a result of an agreement between Tradax and the city of Amsterdam. Tradax, then a subsidiary of Cargill, was a trade company that provided a guaranteed supply of a product that needed to be transshipped. The city of Amsterdam undertook the construction of a storage and handling facility in the port of Amsterdam.

The first ship, the Golden Eagle (an American tanker of 35,000 tons), was unloaded in December, 1960. The products were delivered in relatively small ships up to 35,000 tons. Four pneumatic machines (vacuum suction machines) were used and the holds of the ships were cleaned by hand. In 1965, the first earth-moving machine was used at the IGMA. It was a small skid-steer loader of the brand Monroe, which was used for clearing the ships’ holds. A floating pneumatic machine (Elevator 5) was purchased in 1967 and the Elevator 6 in 1968, which was later donated to a museum. In the early ‘70s, the Elevator 7 was purchased, which was a renovated elevator with two booms instead of four. In 1975, all shares of IGMA were acquired by Tradax, making IGMA a wholly owned subsidiary of Tradax and therewith Cargill.

In 1976, because of the growing demand for Tapioca, two floating lemniscate cranes (16 T) with accompanying weighing installations were purchased. The ships that delivered the Tapioca were not moored at the pier, but on buoys in the middle of the harbour. With the introduction of the cranes, a number of additional earth-moving machines were purchased to increase productivity. The transshipment facilities at the pier were modernized in 1982. Four pneumatic machines were replaced by two siwertells (screw loaders) that no longer pneumatically took the product from the holds, but mechanically.

At the end of the 80’s, IGMA started with IPS (Igma Parcel Service). IPS started handling the freight of smaller packages of cargo from South and North America for many different costumers. IGMA started to grow, and three more cranes with weighing installations were eventually purchased.

In 2017 Cargill sold their crush facility to Bunge, as part of the deal the loading/unloading part of the plant which was being operated by IGMA was also sold.

In 2021 OBA purchased IGMA, bringing together two unique companies in the port of Amsterdam and focusing on the transshipment and storage of dry bulk.