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Other related metrologies, for instance those documented in the Day-Gravity-Water System spreadsheet, make use of brand marks that are generally proportioned like "emoji" or "dingbat" characters:
| Metrology Name | Brand Prefix | Brand Mark |
| Primel | prime | ⚀ |
| Puritel | pu | □ |
| Deuterel | deuter | ⚁ |
| Tertiel | tersh | ⚂ |
| Phasic | phi | ⨁ |
| Pendlebury | pendle | ⊖ |
| Sauter | sauter | Ⓢ |
| Metroid | metroid | Ⓜ |
| Ash-Ashtrian | ash | ✶ |
| ❂ | ||
| Zhen | zhen | ✺ |
| Luo | luo | ⩩ |
| Fleur | fleur | ❧ |
| Shirushi | shirushi | ※ |
| Thalj | thalj | ❆ |
| Kinchil | kinchil | ❀ |
| Chronom | chronom | ⌚ |
| Crosby | crosby | ⚔ |
| Gingerbill's IDUS | gingerbill | ㎇ |
| Système Int'l | int'l | 🌐 |
| Adhoc | hoc | � |
...