. Who is Fikst. Re:Build Fikst, LLC (Fikst), a Re:Build Manufacturing, LLC (Re:Build) company is a growing product design and engineering consulting firm located in Wilmington, MA. We work with pioneering clients to develop their technology, design their products, and bring those products to production. Fikst's areas of expertise include biomedical instruments and consumables, microfluidics, specialty plastic design, optics, industrial automation...