Here is my checklist when I selecting the bounty company.
1. The project should be clearly stated Softcap, Hardcap, the amount of reward for the bounty campaign.
Softcap and Hardcap it figures that the team knows the value of his project and has the final goal.
2. Who is the Manager of the bounty campaign?
Here's an interesting article with some characteristics of managers:
https://bitcointalk.org/index.php?topic=2845483.03. Activity in the ANN topic should be high.
4. Blockchain of the token. Preference is given to ETH.
5. Did Pre-ICO? If so, how successfully?
6. The nationality of the developers. If Russian, then not recommended. Only if other criteria are high.
7. On which exchanges will be listing and when?
8. What will happen to the unsold tokens?
9. Is there a smart contract? Is it the conditions for the bounty? Is there a freeze after the distribution of tokens? Where are investors ' funds - on the wallet of developer (bad) or on a smart contract (good)?
10. Study the idea of the project by reading the White Paper.
11. Does the project have an existing business model or prototype of the project?
12. Who are the advisers of the project?
After then you will have a first impression about the project and you can take a further decision. If you have something to add, I suggest. I hope the article was useful for you.