Since 1997, Expert Assembly Services (714) 258-8880 has become Southern Californias EMS Provider of Choice for Time-Critical, Complex Consign and Full-Turnkey PCB Assembly Assembly Services. EXPERTs seamless integration for all aspects of PCB Fab, Parts Procurement, and Assembly on a Fast-Turn schedule provides our customers the EXPERT Advantage. EXPERTs Southern California customer base of more than 100 OEM customers represent a wide range of end markets including aerospace, medical, dental, communications, defense, storage, entertainment, and networking.