Aushon BioSystems Inc., a microarray and immunoassay company in Billerica, has raised almost $2 million according to an equity funding filed with the U.S. Securities and Exchange Commission.

The $1.96 million offering had 17 separate investors, though the regulatory filing did not disclose them.

Aushon BioSystems provides comprehensive and robust protein biomarker assay development, detection and analysis through an innovative, cost-effective multiplex immunoassay platform that delivers exceptional performance, quality and reliability to accelerate pre-clinical and clinical biomarker research. With a growing menu of more than 300 biomarkers in key therapeutic areas, and advanced microarray printing technology, the firm's broad suite of products and services offers a unique and complete solution for our customers - global leaders in the pharmaceutical, biotechnology, academic and diagnostic industries.