Electronic Engineering and Contract Manufacturing Services Electronic Engineering Services Technical Support, Inc. (TSI) staffs an engineering team with a vast amount of design experience; specializing in hardware/firmware integration projects, firmware development, embedded systems, RTOS, micro-controllers, PCB layout and design. Electronic Manufacturing Services TSI's contract manufacturing team specializes in building your custom hardware; most notably PCB assemblies and box build assemblies. Our production group can take your new PCB design into the prototyping stage and then into higher quantity production runs. All of this happens under one roof. What does this mean to your business? With our engineering and manufacturing teams working closely together this allows TSI to expedite the entire process and work more efficiently. This approach enables a robust design, design for manufacturability (DFM) and makes the project management on our customers end significantly less cumbersome with only one company they need to communicate with. One Stop Shop. Less confusion, less headaches.