May be of help,
TOP UK Businesses:
1. John Lewis Group - Retail.
2. McLaren Technology - Mechanical and Car production.
3. Dyson - Utility goods.
4. Dixons Carphone - Retail Electronics.
TOP CHINA Businesses:
1. Xiaomi - Electronics manufacturers.
2. Huawei - Electronics manufacturers.
3. 361 Degrees - Sportswear and equipment (Could help with Unit 4 too, cheeky)
4. Lenovo - Computing company.
TOP INDIA Businesses:
1. Tata Conglomerate - Motors, Steel, Banking etc.
2. Reliance Conglomerate - Retail, Logistics etc.
3. Bajaj Motors - Vehicles.
4. Dabur - Healthcare Goods.