Hi! For a startup company with 15 people, you need at least an Employee Handbook and a Code of Ethics/Discipline. This will define the terms and references of the employees' relationship with the company.
The Employee Handbook (EH)
The Employee Handbook also spells out many of the company's policies relative to hours of work, overtime work and pay, payroll periods, benefits, office decorum, grievance handling, etc.
If you don't have one yet, my company can help you customize one for your company. Alternatively, you can buy a standard EH from us and customize it yourself. This way, you save some money because a standard EH is cheaper than a customized one.
Get in touch if you have a budget and want us to help you with this.
Best wishes.
Regards, Ed Llarena, Jr. Managing Partner Emilla Consulting