Industrial Company List Research

I need a structured Excel file that pinpoints mechanical-engineering and technology-driven manufacturers in Baden-Württemberg and Bavaria with €20–500 m annual turnover and 100–5 000 staff.
Each row will describe one company and must contain:

• full postal address and main phone number
• revenue and head-count for each of the last three fiscal years (official figures only)
• managing director’s name with direct e-mail
• HR director / head of HR with direct e-mail
• founding year
• clear statement of the firm’s current industry classification

Please base your research exclusively on official, verifiable sources: the company’s own website, reputable branch directories, and professional business databases. No estimates or secondary blog data—only numbers the company itself or a recognised data provider publishes.

Deliver the file ready for filtering and sorting, with consistent column headers and sources cited per entry so I can audit any figure if required.