| Model | Serial number | Name | Comment | Owners |
|---|---|---|---|---|
| PDP-6 | 2 | AI Lab | MIT (1964-1982) | |
| PDP-6 | DynaMod | MIT (1969-) | ||
| KA10 | AI | MIT (1968-1983), Concourse (1983-) | ||
| KA10 | 144 | DM | Dynamic Modeling | MIT (1970-1983) |
| KA10 | 198 | ML | Mathlab | MIT (1971-1984) |
| KA10 | Stacken | |||
| KL10 | 1038 | MC/MX | Macsyma Consortium | MIT (1975-1988), Peter Löthberg |
| KS10 | 4627 | AI | MIT (1985-1990), Christoper Zach, LCM | |
| KS10 | 4648 | MD | Mostly Development | MIT (1986-) |
| KS10 | 4649 | MX/MC | Mail Computer | MIT (1986-1990), Christoper Zach |
| KS10 | 4653 | ML | MIT (1986-1990), Christoper Zach, Doug Humphrey, Dave McGuire | |
| KS10 | 4428 | Peter Löthberg | ||
| KS10 | 4469 | Gordon Greene, Daniel Seagraves | ||
| KS10 | 4655 | LI | eLinor | LIU, Lysator, Ludd, Anders Magnusson |
| KS10 | 4664 | PM | Marc Crispin, LCM | |
| KS10 | 4142 | John Wilson | ||
| KS10 | SI | Stacken | ||
| KS10 | FU | Australia | Flinders University | |
| KS10 | DX | Doug Humphrey (1989-) | ||
| PDP-10/X | TX | Dave Conroy | ||
| KLH10 | SV | Paul Svensson (2001-) | ||
| KLH10 | UP | Update | Björn Victor (2004-) | |
| CC | Cosmic Computing | |||
| KLH10 | ES | Eric Swenson's ITS (2015-) | ||
| KLH10 | NO | nocrew | Lars Brinkhoff (2017-) | |
| KLH10 | SJ | San Jose | @b4 (2017-) | |
| KLH10 | XM | @mattwyrm |