We were pleased to see the interest in our recent blog on the unique number of investigators applying for and receiving NIH research project grants (RPGs). Some of you (through the blog page or through other media) have asked about whether we have similar data for our Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) program. We have generated analogous figures for SBIR and STTR grants, and today’s post shares this investigation of the question, “How many unique researchers are seeking SBIR/STTR funding?”