If you are wondering whether it is possible to do online reputation management by yourself, I would not recommend it. Firstly, your business reputation is a very delicate thing, which can be affected by even a very small error. If you have no experience or knowledge of reputation management, it is better to trust a professional ORM agency for the job. If you are planning to do it yourself, be ready to spend considerable time on it because reputation management is full-time work and requires your constant attention to actively monitor the web for any mentions, especially negative feedback, about your company.