WCarels Frères
WDobson & Barlow
WDraper Corporation
WGoldie & McCulloch
WGeo. Hattersley
WHoward & Bullough
WJohn Hetherington & Sons
WLakshmi Machine Works
WMackie International
WMason Machine Works
WOC Oerlikon
WPaul-Wyatt cotton mills
WSaco-Lowell Shops
WSaurer
WScott & Hodgson Ltd
WSlater Mill Historic Site
WSulzer (manufacturer)
WTaylor, Lang & Co
WUster Technologies
WYates and Thom