Delivering service innovation that delights customers is a difficult task. For product-focused companies, even imagining a potential service innovation is difficult. And what is perhaps most difficult is growing through service innovation as a product-focused, small or medium-sized enterprise (SME)--smaller companies typically lack the resources to research, invest in, and survive such a risky transformation. But some manufacturing SMEs have been able to achieve a high level of growth through service innovation, specifically by leveraging digital technologies. These companies combine digital tools in novel ways to support their production and enterprise efforts. When we began our study of how these companies were succeeding with digital tools, what we expected to find were discrete technologies being applied within discrete business functions. What we found, however, were companies extending their original implementation to link multiple parts of the operation, from the front office, through design and engineering, and to production--and then, in many cases, out the door to their customers, as service innovations. How are manufacturing SMEs achieving this level of sophistication, given their many constraints? And what lessons can larger organizations learn from these smaller companies? What we learned from our interviews is that successful service-oriented innovations often appear simple and obvious in hindsight. But the path to this success is anything but obvious or straightforward. Instead, many of the service innovations we observed evolved over time from a recognition of unmet needs at the customer level, combined with learning-while-doing on the part of the SME. The lessons we took from our work with SMEs, we believe, can serve both SMEs and their larger counterparts. The Example of PoolPak International PoolPak International, a manufacturer of large-scale commercial and industrial dehumidification systems, is emblematic of the approach we found in successful SME service innovators. PoolPak discovered an opportunity to deliver a smart, connected solution to solve a key customer problem: the environment in which dehumidification units are housed can be a dangerous place for humans. Because of this, customers wanted remote access to their units. It's relatively easy to imagine a solution in today's world of broadband, pervasive smartphones, and LTE, but even just 10 years ago, the world was much different, and the solution more technically complex. The company created a custom-built solution that combined its existing software-rich controller with an off-the-shelf wireless radio that, quite literally, dialed out to report problems. It was expensive and it didn't scale, but it was a necessary first step to coupling the product with a service targeted to specific customer needs. And the company learned from the experience, developing more expertise and more sophisticated technical solutions with each generation of equipment and accumulating a wide variety of real-world use cases. As wireless broadband continued to proliferate and sensor prices plummeted, a standard wireless controller became inevitable. The company had been programming world-class HVAC controllers for decades; now, it seized the opportunity to leverage its expertise to cash in on these trends. Although the wireless controller the company now uses is commodity hardware, the program it runs, the data it collects, and the analysis it performs are the secret sauce--and those are the products of years of accumulated expertise. The connected HVAC controller is an interface to the company's core business competencies, not a portal to some magical technological disruption. Today, PoolPak offers a service that provides condition-based assessment of its dehumidification units that includes the ability to schedule predictive maintenance. PoolPak's Internet of Things-based service offering is the result of nearly a decade of work in understanding customer needs and developing digitally supported services to meet those needs. …