Both of these businesses are in the UK. Window and door installation is a home service trade, so the second case study is a far closer match to what LeadsFortress is built for than the first, but it is still not a US contractor in a US market. Read the mechanism rather than the exact numbers.
Two clients is also a small number, and I would rather say so than imply a track record I do not have. I have worked with a handful of businesses properly instead of a long list briefly, and every figure on this page came from an account I ran myself. New months go up here when there is a fair stretch of data behind them, including the ones that are less flattering.
If being an early client is a problem for you, that's a completely reasonable position and you should wait. If it's an opportunity, that's what the Founder Partner program is for.