Sometimes, to get the best candidates, companies have to review piles of unfit resumes, spend a lot of time on interviews, and battle the problem of unavailable people. Hiring red flags can often anchor a company's growth and can also keep their reputation at stake.

OPTNation deals with these issues proactively by allowing businesses to access a reliable collection of pre-screened OPT candidates, improving the hiring process in terms of timing, quality, and usefulness.
https://www.optnation.com/opt-candidates-resumes-database-usa