MILabs
- U-CT; U-SPECT; U-PET; U-OI
Molecubes
- CT: X-CUBE; PET: ß-CUBE; SPECT: y-CUBE
Perkin Elmer
- CT: Quantum GX; Optics: IVIS Spectrum
Bruker
- CT: Skyscan 1176, 1272, 1276, 1278; MRI: 7T
Siemens
Visual Sonics
Aspect
Philips
Mediso
- nanoScan PET; NanoSpect/CT and Tera-Tomo 3D SPECT; nanoScan CT; nanoScan MRI
Inviscan
GE Healthcare
CT imaging GmbH
TriFoil Imaging
- Triumph II small animal PET/SPECT/CT
And many more systems that export image data in standardized file formats, e.g. Nifti, DICOM, or GFF.