About the Company Since its formation in 1987 Envelopes Plus (Holdings) Ltd has become established as one of the UK's leading manufacturers of envelopes for the greeting card industry, and has gained an impressive reputation for quality, reliability and service. While retaining its character as a family-owned business, Envelopes Plus operates today from extensive and well equipped premises in Dewsbury, from where it fulfils the needs of customers throughout the country and provides many of the major greeting card concerns with envelopes custom-made to their specifications