Thanks; I also summarize the history of eBPF in my BPF Performance Tools book (which I had checked by Alexei & Dan) and list the main contributors in the Acknowledgements page, as well as include them in talks (e.g.
https://www.slideshare.net/brendangregg/bpf-internals-ebpf/1...). I do try hard to thank all involved. :-)
Modern BPF (eBPF) was created by Alexei Starovoitov and Daniel Borkmann, who are still maintainers but are joined by over a hundred contributors. I've spent most of my time contributing to the observability frontends, bcc and bpftrace. Apart from the people, the major companies contributing include Facebook and Isovalent; Microsoft are becoming its own major contributor to its own Windows implementation.