The following people have contributed to the implementation of CHGL (alphabetically by last name):
- Sinan Aksoy, Pacific Northwest National Laboratory
- Sarah Harun, Mississippi State University
- Louis Jenkins, Pacific Northwest National Laboratory and University of Rochester
- Cliff Joslyn, Pacific Northwest National Laboratory
- Christopher Lightsey, Mississippi State University
- Hugh Medal, The University of Tennessee, Knoxville
- David Mentgen, Mississippi State University
- Tim Stavenger, Pacific Northwest National Laboratory
- Tanveer Bhuiyan, Mississippi State University
- Marcin Zalewski, Pacific Northwest National Laboratory