Rebus Biosystems Inc. has closed a $20 million series B fundraising round. The financing round was led by Illumina Ventures with participation by Lifecore Partners, Ncore Ventures, Xolon Invest, Ctk Investments, Ray Co. Ltd., Seegene Medical Foundation, Labgenomics Co. Ltd. and Timefolio Asset Management. Rebus builds spatial omics tools, assays and platforms. The company plans to use the new funding to support commercialization of its spatial omics solution and expansion of its marketing, sales, research, and product development teams, said Rebus CEO Paul Sargeant. Rebus plans to launch its automated, standalone Rebus Biosystems instrument and optimized assay kits for spatial transcriptomics early in 2021.