* acetan (Acetobacter xylinum)
* alginate (Azotobacter vinelandii, Pseudomonas spp.)
* cellulose (Acetobacter xylinum)
* chitosan (Mucorales spp.)
* curdlan (Alcaligenes faecalis var. myxogenes)
* cyclosophorans (Agrobacterium spp., Rhizobium spp. and Xanthomonas spp.)
* dextran (Leuconostoc mesenteroides, Leuconostoc dextranicum and Lactobacillus hilgardii)
* emulsan (Acinetobacter calcoaceticus)
* galactoglucopolysaccharides (Achromobacter spp., Agrobacterium radiobacter, Pseudomonas marginalis, Rhizobium spp. and Zooglea spp.)
* galactosaminogalactan (Aspergillus spp.)
* gellan (Aureomonas elodea and Sphingomonas paucimobilis)
* glucuronan (Sinorhizobium meliloti)
* N-acetylglucosamine (Staphylococcus epidermidis)
* N-acetyl-heparosan (Escherichia coli)
* hyaluronic acid (Streptococcus equi)
* indican (Beijerinckia indica)
* kefiran (Lactobacillus hilgardii)
* lentinan (Lentinus elodes)
* levan (Alcaligenes viscosus, Zymomonas mobilis, Bacillus subtilis)
* pullulan (Aureobasidium pullulans)
* scleroglucan (Sclerotium rolfsii, Sclerotium delfinii and Sclerotium glucanicum)
* schizophyllan (Schizophylum commune)
* stewartan (Pantoea stewartii subsp. stewartii)
* succinoglycan (Alcaligenes faecalis var. myxogenes, Sinorhizobium meliloti)
* xanthan (Xanthomonas campestris)
* welan (Alcaligenes spp.)