1 INTRODUCTION  
2 PECULIAR VELOCITY SURVEYS  
2.1 Overview  
2.2 Motivating combining PV surveys with redshift surveys  
3 METHODS  
3.1 Fisher information  
3.2 Free parameters  
3.3 Numerical Implementation  
3.4 Including information from Planck  
4 SURVEYS  
4.1 DESI  
4.2 WALLABY  
4.3 4HS  
4.4 LSST and $J<19$ sample  
5 RESULTS  
5.1 Results with $N_{\mathbf{eff}}$ fixed  
5.2 Results with $N_{\mathbf{eff}}$ free  
6 DISCUSSION  
6.1 Nuisance parameters  
6.2 Systematics  
7 CONCLUSIONS