Web design and crm

I am looking for a professional web site as well as some kind of system that my clinets can log onto and get there documents i.e we are ahealth and safety consultancy and carry out site inspections and pat testing etc and create alot of documents for clients. I would also like to try and carry out site inspection on an Iphone or similar. www.constructive.org.uk veiw current website. I also need to to create an online shop