Biological nitrogen fixation (BNF) is crucial for enhancing soil fertility in various agricultural systems while being non-polluting and reasonably priced. Particularly, faba bean (Vicia faba L.) is one of Egypt's most important leguminous crops that can meet all their N needs through BNF. This study investigated the symbiotic effectiveness of Rhizobium leguminosarum biovar Viceae (ICARDA 441) alone or in combination with Bacillus polymyxa, Pseudomonas fluorescens and Streptomyses sp. in improving the nodulation, growth, and productivity of faba bean cv. Giza 30 under field conditions. Results revealed that the bioinoculants promoted all investigated plant parameters and resulted in significant increase in the plant height, dry weight and fresh weight. Furthermore, the dual inoculation with R. leguminosarum and other plant growth promoting bacteria (PGPR) resulted in significant increase in nodule number and weight compared with untreated control. At the harvest stage, remarkable enhance in the yeild, seed index and crude protein percentage was observed compared with untreated control. The present study highlighted the potential application of R. leguminosarum in combination with B. polymyxa, P. fluorescens, and Streptomyces sp as efficient bioinoculants to diminish the use of chemical fertilizers and improve the growth and productivity of faba bean under field conditions.