DX Group (couriers), are next to Muller Martini UK (binding), and Cummins have a design plant at Rideway Trading Est next to the M25 at Iver; Pinewood Studios is in Iver Heath; it takes its name as it is next to the adjacent pine trees in the 530 acres of Black Park. Avid Technology UK (industry-standard Pro Tools audio and Sibelius notation software) is also based at Pinewood. Timberland Europe is at Wexham Springs, in Wexham west of Pinewood Studios in the same place is Servier Laboratories UK and Sun Chemical Europe (the world's largest producer of printing inks). STMicroelectronics UK (French-Italian, based in Geneva), is based next to Trend Micro UK (Japanese) on Globeside Park at Marlow, next to the A404 and nearby are Expansys and Whistl (former TNT Post UK, part of PostNL), both north of Marlow railway station; Techtronic Industries UK (Ryobi power tools) is on the same estate. Dun & Bradstreet UK (credit references) is on the A404 bypass at the A4155 Westhorpe Interchange. GE Healthcare has its world HQ in Little Chalfont. Uniq plc (bought by Greencore in November 2011) was in Chalfont St Peter, next to the A413 and River Misbourne, off the B416 Kingsway Roundabout, next to Citrix UK; Doro UK (Swedish mobile phones) are off the A413. Bahlsen UK is in Gerrards Cross off the B416.