McLellan Engineering, Inc. is a small, owner-operated, state-certified engineering firm founded in 2001 that specializes in end-to-end product development for inventors and entrepreneurs, offering in-house design, engineering, prototyping, testing, and manufacturing consulting with a focus on rapid, cost-effective implementation, confidentiality, and practical, profit-oriented outcomes. Key Points The firm is a small, family-owned operation with about 40 years of combined experience. It exclusively serves inventors-entrepreneurs, not large corporations, with a profit- and time-focused approach. Services cover the full spectrum from professional engineering to manufacturing consulting, including prototyping and sourcing for mass production. The company emphasizes in-house work (design, engineering, coding, CAD, prototype fabrication, and assembly) to control quality and confidentiality. The lead engineer holds a mechanical engineering degree, an engineering license, and has experience with DELL, Motorola, and startup incubators, plus holding patents. McLellan prioritizes real working prototypes over mere industrial design renderings and promises cost-effective radical changes. The firm is optimized for utility patents and avoids upfront hand sketches or unnecessary charges, focusing on practical implementation first. Confidentiality is a key advantage due to small team dynamics; rarely are many people aware of a single invention. The approach is particularly beneficial for complex inventions, contrasting with larger firms that may prioritize sales and design over engineering. Clients receive access to a licensed professional engineer who can guide them from inventor to founder.