Sterling Engineering is an award-winning engineering services and technical staffing firm helping companies solve workforce, project, and technical execution challenges. Since 1969, Sterling has supported clients across manufacturing, life sciences, food and beverage, energy, utilities, automation, infrastructure, and industrial markets with flexible engineering and workforce solutions.Sterling Engineering gives clients flexibility in how they engage support. Our hybrid model brings together engineering consulting, project management, and technical staffing, enabling industrial firms to advance projects while filling specialized talent gaps. For companies that need broader support, we can combine engineering execution and workforce solutions into a single partnership. For others, we can serve as a dedicated engineering consultant or a standalone staffing partner based on the specific need. This adaptable approach helps manufacturers and project-driven organizations improve speed, reduce downtime, manage risk, and respond quickly as priorities change.For clients, that means listening closely, communicating consistently, and providing resources that align with business goals. For candidates and consultants, it means creating opportunities where people can grow, contribute, and build meaningful careers.Sterling Engineering (a nod to Dan’s favorite beer) began in 1969, when Dan Casey and a small group of like-minded engineers (Steve Kozlowski and Donald Smith) established a machine-design firm in the Chicago area, driven by a simple conviction: technical professionals deserved better. Dan, an accomplished tool-and-die maker from Scotland, knew that great engineering starts with great people, treated with dignity and respect. From day one, Sterling combined hands-on expertise with a people-first ethos that stood out in an industry long on output and short on support. Clients noticed. So did the engineers who chose to build their careers with us.A decade later, another journey crossed the Atlantic. Dolores Connolly left Longford, Ireland, for what she thought would be a short stint in Chicago. She found opportunity, community, and the kind of scrappy energy that rewards curiosity and hard work. After leading high-growth teams in global technology distribution, Dolores was invited to advise a small engineering firm wrestling with offshoring headwinds. She didn’t just see a business in trouble – she saw potential. Stepping in as CEO, she modernized Sterling’s strategy, diversified the business, and doubled down on a culture of trust, respect, and measurable results.We listen first. We ask better questions. We earn trust through execution. Our hybrid model, which combines engineering consulting, project management, and technical staffing, bridges the gap between vision and reality, enabling clients to scale their work with agility and meet exacting standards with precision. Whether standing up a new production line, validating a life-sciences facility, or building a specialized team on short notice, we align strategy, talent, and delivery to protect timelines, budgets, and safety.Sterling Engineering was built by immigrants and innovators who believed that excellence and empathy are inextricably linked. That belief still guides us as we help the world’s industrial leaders modernize operations, accelerate projects, and create resilient workforces. From Chicago to Galway, and from factory floors to research labs, we’ll continue to pair people-first leadership with engineering precision to move ideas from concept to completion, faster and with lower risk. The story isn’t finished. We’re just getting started.We don’t just fill jobs. We build lasting partnerships. Our account reps have an average tenure of 13 years, our recruiters have an average tenure of 8 years, and our leadership team has an average tenure of 24 years, meaning you get a dedicated expert who knows your business, understands your challenges, and delivers results.No More Wasting Time on Unqualified Candidates – Every candidate is fully prescreened and qualified before we submit them, ensuring a perfect fit for your team. Read our Guide to Building a High-Performance Team.We understand your market and the challenges of scaling across regions. Our technical staffing model combines local insight with the reach of a nationwide network, enabling you to build agile teams and access the specialized talent you need, wherever your business expands.Sterling Engineering partnered with Grotnes as an extension of their engineering team, delivering turnkey design packages that moved two major machine initiatives from concept to build. Sterling’s team developed production-ready models, BOMs, and detailed design documentation, allowing Grotnes’ internal build group to begin fabrication quickly with fewer handoffs. Read article.Sterling Engineering’s ENR Midwest feature highlights how our subconsultant engineering support and embedded teams help infrastructure firms manage complex project demands. From telecom permitting support to utility program delivery, Sterling provides engineering, drafting, project coordination, and technical workforce solutions that integrate directly into client teams to improve speed, continuity, and execution. 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