Clinipace Inc., a contract research organization, has raised $4 million by selling private equity, according to a filing Thursday with the Securities and Exchange Commission.

The Morrisville-based company raised the money from 13 investors, according to the filing.

Clinipace had raised $5.7 million in September 2018 and $10 million in December 2017.

Founded in 2003, Clinipace Clinical Research was originally built as a software company that has since grown into a global, full-service contract research organization.

The company aims to bring new therapies and medications to market, impact the lives of patients around the world and provide up-and-coming levels of partnership and efficiency not seen in traditional clinical research organizations.

Providing services in clinical development, regulatory affairs and clinical analysis, the organization’s geographic coverage includes North America, Latin America, Asia-Pacific and Eastern and Western Europe.

Clinipace CEO Jason Montelone joined the team in 2017 after co-founder Jeff Williams resigned as CEO. Montelone has more than 20 years of health care and life science industry experience.

Private firms such as Clinipace relying on the Rule 506 exemption do not have to register their offering of securities with the SEC, but they must file what’s known as a Form D electronically with the SEC after they first sell their securities.