David Ian Allan

The Organic Gardening Catalogue Ltd. produces and supplies seeds. It offers vegetable, herb, flower, seed potatoes, onions, shallots and garlic, wild flower, and sprouting seeds, organic plants, fruit trees, soft fruit, mushrooms, comfrey plants, and organic ecobulbs. It also offers preparing and planning, sowing, beds and containers, weed control, watering, and crop protection. The company is headquartered in Paignton, the United Kingdom.

Dart Valley Railway Plc, founded in 1965, provides interurban passenger rail transportation services. The private company is based in Paignton, UK.

Part of Seera Holding Group, IAN Allan Motors Ltd. is a British company that sells and distributes motor vehicles. The company is based in Surrey, UK. Founded in 1976.

Part of Ian Allan Group Ltd., Tennay Properties Ltd. is a commercial and investment property company based in Chertsey, UK. The British company offers a complete portfolio of managed office accommodation and properties for long or short term leases in and around the home counties. Tennay Properties prides itself on flexibility and accommodating their clients' requirements. The company has their own maintenance team to assist with repairs, refurbishment, general maintenance, and redecorating. Tennay Properties also provides direct access to personal property managers and a manned reception.

Ian Allan Travel Ltd. provides corporate and leisure travel services. It offers academic travel, charity travel, event management, and online rail, hotel, and air booking. The company was founded by Ian Allan in 1964 and is headquartered in Shepperton, the United Kingdom.