Automatically populate worksheets if data in column 1 matches

Hi,
Is there a way that I can automatically populate information in certain columns of worksheets 2, 3, 4, etc when the data entered into column A matches the data entered into column A on worksheet 1. I have attached a sheet showing the different headings on my worksheets (all in the same workbook) and an example of where the info might be duplicated. I have coloured the relevant columns in bright green.
i.e. if I enter company3 onto the second worksheet in columnA I want the data in columns BCDEF copied from worksheet1 (where the column headings match).
any help gratefully received.
I am using excel 2003
many thanks
carrach