Seconded. I used to be a sysadmin in one of the Big-4. They had custom MS Office Plugins for accounting, wordprocessing and presentations (usually branding-rela

Seconded. I used to be a sysadmin in one of the Big-4. They had custom MS Office Plugins for accounting, wordprocessing and presentations (usually branding-related) It might be difficult to sell to them though, as those machines are locked down tight and the accountants can install nothing without IT intervention. IT is usually controlled by a central group that runs IT for everyone (as in, all the member countries), so it's gonna be difficult to get an exception for your product, as they have internal tools developed that fit in with their other custom Audit Workflow Applications. So avoid Big 4, but try selling to 'average accountants' as endersshadow says, who might work in a less locked-down environment.