According to DataIntelo, the global IoT services market is projected to grow from $285.0 billion in 2025 to $1,417.2 billion by 2034, a compound annual growth rate of 19.5%. The pace suggests that companies are no longer testing IoT within their operations; in many cases, they have already built it into how they run. For most of the past decade, IoT services were treated as an emerging opportunity, something businesses were still “exploring.” That framing increasingly looks outdated. Across the PaaS, IaaS, and SaaS layers that make up the IoT services market, a $285 billion base has already been established, and DataIntelo expects it to grow nearly fivefold over the next nine years. That scale points less to a wave of fresh innovation than to a deepening reliance on the technology: connectivity services, device management platforms, and analytics tools have become infrastructure that manufacturers, energy companies, healthcare organizations, and municipalities now depend on to run daily operations. What is worth watching closely is not simply how fast the market is growing, but why, and what could get in the way. From connectivity pilots to operating infrastructure The shift is visible in the services mix. IaaS — the layer covering managed cellular connectivity, device fleets, and gateway infrastructure — is forecast to grow slightly faster than PaaS (19.8% versus 18.8% CAGR), even though PaaS still holds the largest revenue share, at roughly 38.5%. Enterprises are not simply building more IoT applications; increasingly, they are paying to have large, distributed device estates operated on their behalf, with provisioning, firmware updates, security policy enforcement, and lifecycle management delivered as a managed service rather than built in-house. Broader connectivity data points in the same direction. Berg Insight’s most recent figures put global cellular IoT connections at 4.2 billion at the end of 2025, up