Yes, we do. We have done the basic SEO described in "Competitive Analysis" service.
However, because in the software industry, search engines give the top/good status to the personal blogs, there isn't motivation to do SEO so hard. Therefore, at our own website, we often do "experiment" instead of SEO. The results obtained by "experiment" will be used in our "Competitive Analysis" service.
"Whether SEO is effective or not" depends on the industry which the target-site joined in.
If we join in "SEO-effective-industries, we worked hard at SEO.
"Whether SEO is effective or not" depends on not only "industry" but also "location".