As with all other companies and individuals that are marketing apps, do you:
a) have a clear idea of what advantages your apps provide compared to leading apps already in the segments you are after?
b) does it provide value over and above other competing apps?
c) since you are targeting enterprises, have you framed how the app either saves money or makes money?
d) have you targeted a smaller enterprise as a trial partner to prove in your claims (a-c) that could be used as a reference account for larger companies?
e) is it priced to be competitive, and if not, how are you "selling" the rationale for premium pricing?
f) have you used the results of direct sell to rethink the app, the messaging, the segment, etc?
For a new company, with no brand, as with any other product, proof of traction is paramount, not just for funding but to prove viability and impact for other accounts.