The absence of trustworthy data is an obstacle for researchers in their search for new treatments. To address this lack of accessible knowledge, a group of pharmaceutical companies, universities, hospitals and research organisations joined forces to make relevant information available to the research community. With partial funding from the EU, the partners have launched the data portal Open Science Probes. The data available are chemical probes that are particularly useful for chemical biologists researching on drug discovery. Read more about the published data on eLife Science or visit Open Science Probes.