B2B list building project

Immediate work available for an individual or company to research names and contact details of specific job titles in a range of companies around the world (mainly Europe and North America). A list of company names will be provided and the contact data need to be researched via the internet (or phone if necessary to verify) and entered very accurately into an excel spreadsheet. Data to include: Name; Job Title; Email; Phone; Web Url where contact was found Initially there are around 2000 companies to collect contacts for. Around half are larger companies that take more work to find the right data, the other half are schools which are generally quick and easy to source on websites. The applicant must have experience in list building and be efficient in sourcing new leads. They must have excellent attention to detail. Price is key. Quality data is a must. For the right person this work could be ongoing. I am looking for someone really reliable, fast and efficient, with good common sense to work out corporate contacts from company email patterns etc. No upfront payment - payment made on submission of data - which can be in phases.