| Damian W. Betebenner | aut / cre |
| Adam R. Van Iwaarden | aut |
| Ben Domingue | aut |
| Yi Shang | aut |
| Jonathan Weeks | ctb |
| John Stewart | ctb |
| Jinnie Choi | ctb |
| Xin Wei | ctb |
| Hi Shin Shim | ctb |
| Xiaoyuan Tan | ctb (Arizona Department of Education) |
| Carrie Giovannini | ctb (Arizona Department of Education) |
| Sarah Polasky | ctb (Arizona State University) |
| Rebecca Gau | ctb (Arizona Charter School Association) |
| Jeffrey Dean | ctb (University of Arkansas) |
| William Bonk | ctb (Colorado Department of Education) |
| Marie Huchton | ctb (Colorado Department of Education) |
| Allison Timberlake | ctb (Georgia Department of Education) |
| Qi Qin | ctb (Georgia Department of Education) |
| Melissa Fincher | ctb (Georgia Department of Education) |
| Kiran Athota | ctb (Georgia Department of Education) |
| Travis Allen | ctb (Georgia Department of Education) |
| Glenn Hirata | ctb (Hawaii Department of Education) |
| Glenn Nochi | ctb (Hawaii Department of Education) |
| Joshua Lee | ctb (Hawaii Department of Education) |
| Ayaka Nukui | ctb (Idaho Department of Education) |
| Carissa Miller | ctb (Idaho Department of Education) |
| Matthew Raimondi | ctb (Elgin Area School District U46 (Illinois)) |
| Wes Bruce | ctb (Indiana Department of Education) |
| Robert Hochsegang | ctb (Indiana Department of Education) |
| Tony Moss | ctb (Kansas State Department of Education) |
| Xuewen Sheng | ctb (Kansas State Department of Education) |
| Kathy Flanagan | ctb (Massachusetts Department of Elementary and Secondary Education) |
| Robert Lee | ctb (Massachusetts Department of Elementary and Secondary Education) |
| Ji Zeng | ctb (Michigan Department of Education) |
| Steve Viger | ctb (Michigan Department of Education) |
| Joe DeCastra | ctb (Mississippi Department of Education) |
| Ken Thompson | ctb (Mississippi Department of Education) |
| Soo Yeon Cho | ctb (Missouri Department of Education) |
| Jeff Halsell | ctb (Clark County School District, Nevada) |
| Selcuk Ozdemir | ctb (Washoe County School District, Nevada) |
| Roger Silva | ctb (Nevada Department of Education) |
| Deb Wiswell | ctb (New Hampshire Department of Education) |
| Katya Levitan-Reiner | ctb (New Haven Public Schools) |
| Catherine McCaslin | ctb (New Haven Public Schools) |
| Joshua Marland | ctb (New York Education Department) |
| W Joshua Rew | ctb (Oregon Department of Education) |
| Jason Becker | ctb (Rhode Island Department of Education) |
| Jessica Bailey | ctb (Rhode Island Department of Education) |
| Ana Karantonis | ctb (Rhode Island Department of Education) |
| Deborah Jonas | ctb (Virginia Department of Education) |
| Juan D'Brot | ctb (West Virginia Department of Education) |
| Nate Hixson | ctb (West Virginia Department of Education) |
| Deb Came | ctb (Washington Office of Superintendent of Public Instruction) |
| Ashley Colburn | ctb (Washington Office of Superintendent of Public Instruction) |
| Nick Hassell | ctb (Washington Office of Superintendent of Public Instruction) |
| Krissy Johnson | ctb (Washington Office of Superintendent of Public Instruction) |
| Daniel Bush | ctb (Wisconsin Department of Education) |
| Justin Meyer | ctb (Wisconsin Department of Education) |
| Joseph Newton | ctb (Wisconsin Department of Education) |
| Nick Stroud | ctb (Wisconsin Department of Education) |
| John Paul | ctb (Wyoming Department of Education) |
| Michael Flicek | ctb (Michael Flicek Projects LLC working with Wyoming Department of Education) |
| Phyllis Clay | ctb (Albuquerque Public Schools) |
| Peter Kinyua | ctb (Albuquerque Public Schools) |
| Brendan Houng | ctb (University of Melbourne, Australia, NAPLAN) |
| Leslie Rosale | ctb (Ministry of Education, Guatemala) |
| Nathan Wall | ctb (eMetric working with Nevada Department of Education and South Dakota Department of Education) |
| Narek Sahakyan | ctb (World Class Instruction and Design (WIDA)) |