| Spezies | Risiko- gruppe | Bemer- kungen | Status |
| Waddlia | |||
| Waddlia chondrophila | 2 | t | |
| Wandonia | |||
| Wandonia haliotis | 1 | ||
| Wangia → Zunongwangia | |||
| Wangia profunda → Zunongwangia profunda | |||
| Wautersia → Cupriavidus | |||
| Wautersia basilensis → Cupriavidus basilensis | |||
| Wautersia campinensis → Cupriavidus campinensis | |||
| Wautersia eutropha – synonym: Cupriavidus necator | |||
| Wautersia gilardii → Cupriavidus gilardii | |||
| Wautersia metallidurans → Cupriavidus metallidurans | |||
| Wautersia numazuensis → Cupriavidus numazuensis | |||
| Wautersia oxalatica → Cupriavidus oxalaticus | |||
| Wautersia paucula → Cupriavidus pauculus | |||
| Wautersia respiraculi → Cupriavidus respiraculi | |||
| Wautersia taiwanensis → Cupriavidus taiwanensis | |||
| Wautersiella | |||
| Wautersiella falsenii → Empedobacter falsenii | Umb. | ||
| Weeksella | |||
| Weeksella massiliensis | 1 | + | neu |
| Weeksella virosa | 1 | + | |
| Weeksella zoohelcum → Bergeyella zoohelcum | |||
| Weissella | |||
| Weissella beninensis | 1 | ||
| Weissella bombi | 1 | neu | |
| Weissella ceti | 2 | t | |
| Weissella cibaria | 1 | ht+ | |
| Weissella confusa (Lactobacillus confusus) | 1G | ht+ | |
| Weissella diestrammenae | 1 | ||
| Weissella fabalis | 1 | ||
| Weissella fabaria | 1 | ||
| Weissella ghanensis | 1 | ||
| Weissella halotolerans (Lactobacillus halotolerans) | 1 | ||
| Weissella hellenica | 1 | ||
| Weissella jogaejeotgali | 1 | neu | |
| Weissella kandleri (Lactobacillus kandleri) | 1 | ||
| Weissella kimchii – synonym: Weissella cibaria | |||
| Weissella koreensis | 1 | ||
| Weissella minor (Lactobacillus minor) | 1 | ||
| Weissella oryzae | 1 | ||
| Weissella paramesenteroides (Leuconostoc paramesenteroides) | 1 | ||
| Weissella soli | 1 | ||
| Weissella thailandensis | 1 | ||
| Weissella uvarum | 1 | neu | |
| Weissella viridescens (Lactobacillus viridescens) | 1 | ||
| Wenxinia | |||
| Wenxinia marina | 1 | ||
| Wenxinia saemankumensis | 1 | ||
| Wenyingzhuangia | |||
| Wenyingzhuangia aestuarii | 1 | neu | |
| Wenyingzhuangia fucanilytica | 1 | neu | |
| Wenyingzhuangia gracilariae | 1 | neu | |
| Wenyingzhuangia heitensis | 1 | neu | |
| Wenyingzhuangia marina | 1 | ||
| Wenzhouxiangella | |||
| Wenzhouxiangella marina | 1 | neu | |
| Wenzhouxiangella sediminis | 1 | neu | |
| Wigglesworthia | |||
| Wigglesworthia glossinidia | 1 | ||
| Williamsia | |||
| Williamsia deligens | 1 | + | neu |
| Williamsia faeni | 1 | ||
| Williamsia herbipolensis | 1 | neu | |
| Williamsia limnetica | 1 | ||
| Williamsia marianensis | 1 | ||
| Williamsia maris | 1 | ||
| Williamsia muralis | 1 | ||
| Williamsia phyllosphaerae | 1 | ||
| Williamsia serinedens | 1 | + | |
| Williamsia spongiae | 1 | neu | |
| Williamsia sterculiae | 1 | ||
| Williamwhitmania | |||
| Williamwhitmania taraxaci | 1 | neu | |
| Winogradskyella | |||
| Winogradskyella aquimaris | 1 | ||
| Winogradskyella arenosi | 1 | ||
| Winogradskyella crassostreae | 1 | neu | |
| Winogradskyella damuponensis | 1 | ||
| Winogradskyella echinorum | 1 | ||
| Winogradskyella eckloniae | 1 | neu | |
| Winogradskyella epiphytica | 1 | ||
| Winogradskyella exilis | 1 | ||
| Winogradskyella eximia | 1 | ||
| Winogradskyella flava | 1 | neu | |
| Winogradskyella haliclonae | 1 | neu | |
| Winogradskyella jejuensis | 1 | neu | |
| Winogradskyella litorisediminis | 1 | ||
| Winogradskyella litoriviva | 1 | neu | |
| Winogradskyella lutea | 1 | ||
| Winogradskyella maritima | 1 | neu | |
| Winogradskyella multivorans | 1 | ||
| Winogradskyella pacifica | 1 | ||
| Winogradskyella poriferorum | 1 | ||
| Winogradskyella psychrotolerans | 1 | ||
| Winogradskyella pulchriflava | 1 | ||
| Winogradskyella rapida | 1 | ||
| Winogradskyella sediminis | 1 | neu | |
| Winogradskyella thalassocola | 1 | ||
| Winogradskyella ulvae | 1 | ||
| Winogradskyella undariae | 1 | ||
| Winogradskyella wandonensis | 1 | ||
| Woeseia | |||
| Woeseia oceani | 1 | neu | |
| Wohlfahrtiimonas | |||
| Wohlfahrtiimonas chitiniclastica | 1 | ht+ | |
| Wohlfahrtiimonas populi | 1 | p+ | neu |
| Wolbachia | |||
| Wolbachia melophagi | 1 | ||
| Wolbachia persica → Francisella persica | Umb. | ||
| Wolbachia pipientis | 1 | ||
| Wolinella | |||
| Wolinella curva → Campylobacter curvus | |||
| Wolinella recta → Campylobacter rectus | |||
| Wolinella succinogenes (Vibrio succinogenes) | 1 | ||
| Woodsholea | |||
| Woodsholea maritima | 1 | ||
| Wukongibacter | |||
| Wukongibacter baidiensis | 1 | neu |
| G | Auf eine abweichende Einstufung in der "Liste risikobewerteter Spender- und Empfängerorganismen für gentechnische Arbeiten" wird hingewiesen. |