Patients Know Best (patientsknowbest.com) -- though we're not hiring aggressively at the moment (which is why we don't have an entry on this page otherwise...), I imagine it can't hurt to keep in touch if our mission looks interesting.

Our webapp is currently old-school enterprise Java, partly because we're building atop a few major bits of OSS that are Java/JEE, but we're not opposed to becoming more polyglot as we expand.