Ask HN: We have the expertise but no clients. How to reach them?

We started a consultancy company 4 months back with two medium sized projects that we got as individual freelancers. We have the expertise and experience in healthcare technology ( FHIR, interoperability ), which is a niche. But now we have zero leads from last month. We cannot figure out how to reach the potential interested clients who need this technology.

https://alstonia.io