Founder and RevOps Consultant at revbuff
Leer (Ostfriesland), Deutschland
Publications:
Tim Seiler is the founder of revbuff, a boutique consultancy specializing in Revenue Operations for IT system houses and managed service providers (MSPs) in the German-speaking market. With 10 years of enterprise IT account management experience, he helps IT companies recover margin lost at the intersection of sales, service delivery, and billing. Website: revbuff.de






Research-based article on how IT service companies lose 5–15% of billable technician hours before they appear on an invoice. Published on revbuff.de, citing industry data from DeskDay, SPI Research, and ConnectWise benchmarks.
revbuff.de
Revenue Operations Consultancy for IT Companies – Founded 2025. Advising owner-managed IT system houses and MSPs in the DACH region (Germany, Austria, Switzerland) on aligning sales, service delivery, and billing processes. Focus: recovering margin lost in operational gaps, without software rollouts.
revbuff.de
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