About Us

SPECTRA GROUP LTD. INC was founded by Dr. Douglas C. Neckers in 1990. Its first objective was to print medical models for surgical planning from CT and MRI scans.  The company has evolved into a full-on photoscience expertise provider.



Spectra Group Ltd. Inc. is a privately owned business located at 27800 Lemoyne Rd, off State Rt. 795 and 2 miles north from Ohio Turnpike exit 71; 1 mile west from I-280. Spectra Group employs a number of photopolymer and synthetic organic chemistry experts. Many of Spectra Group employees are alumni of Bowling Green State University, primarily from the Center for Photochemical Sciences and most have Ph. D. degrees from that program. Spectra Group’s photo scientists are problem solvers in many fields where chemical creativity is required, mostly specializing in the areas of light interaction with matter. We welcome challenging problems and will attempt to provide a custom solution.


For additional information or to order, please call us at (419) 837-9783 or
e-mail us at info@sglinc.com