Collstream Ltd Established in 2005, Collstream are the industry experts in delivering successful text marketing and voice broadcasting services for businesses. Collstream's SMS marketing services allow businesses to enhance customer relations, increase renewals, transform payment collection and drive sales. Collstream's IVR services reduce administrative overheads and increase staff efficiency. Call Collstream, the SMS marketing experts to find out how business Text Messaging could grow your business. Trading Since 2005