| Company | Reagent | Link to information | Remarks |
| Abbott | AxSYM Homocysteine | Method: FPIA | |
| Abbott | Architect Homocysteine | Method: CMIA | |
| Abbott | IMx Homocysteine | Method: MEIA and FPIA | |
| Axis Shield | Axis Homocysteine | Method: EIA | |
| Biorad | Homocysteine Assay | Method: HPLC/ Fluorescence detection or EIA | |
| Chromsystems | Homocysteine | Method: HPLC/ Fluorescence detection | |
| DiaSys | Homocysteine FS | Method: Enzymatic | |
| Diazyme | Enzymatic Homocysteine (2 Reagent) | Method: Enzymatic | |
| Diazyme | Enzymatic Homocysteine (3 Reagent) | Method: Enzymatic | |
| Eurolyser | Homocysteine test | Method: Enzymatic | |
| Ortho Clinical Diagnostics | Vitros Homocysteine | Method: Enzymatic | |
| Recipe | ClinRep Homocysteine | Method: HPLC/ Fluorescence detection | |
| Roche | Homocysteine | Roche Homocysteine | Method: Enzymatic |
| Sentinel Diagnostics | Homocysteine Liquid | Method: Enzymatic | |
| Shimadzu | Homocysteine | Method: HPLC/ Fluorescence detection | |
| Siemens Healthineers | Advia Centaur Homocysteine | Siemens Advia Centaur Homocysteine | Method: EIA |
| Siemens Healthineers | Atellica Homocysteine | Siemens Atellica Homocysteine | Method: CLIA |
| Siemens Healthineers | Dimension Vista Homocysteine | Siemens Dimension Vista Homocysteine | Method: CLIA |
| Siemens Healthineers | Immulite Homocysteine | Siemens Immulite Homocysteine | Method: EIA |
| Werfen | HemosIL Homocysteine | Werfen HemosIL Homocysteine | Method: LIA |