IoT Security Spending to Hit $45B by 2030 at 32% Annual Growth

Enterprise IoT Security Becomes a $45 Billion Budget Line

IoT security spending will reach $45.11 billion by 2030, up from $11.22 billion in 2025, according to a new global market report from The Business Research Company. The 32% compound annual growth rate positions IoT security as one of the fastest-growing enterprise security categories — faster than traditional network security and competitive with cloud security platform spend.

The growth driver is explicit: the rise in IoT cyberattacks as enterprises expand their IoT footprint. Every connected sensor, camera, actuator, or edge device adds attack surface. The market data gives CISOs a concrete number to bring to the board when justifying increased IoT security budgets relative to other security spending.

What the Numbers Mean for Enterprise Buyers

The forecast shows IoT security growing from $14.86 billion in 2026 to $45.11 billion in 2030 — a tripling of market size in four years. For enterprise buyers, this signals three shifts:

First, IoT security moves from a side project to a primary budget line. A 32% annual growth rate means IoT security spending will outpace headcount, cloud infrastructure, and most other IT categories. Budgets that treat IoT security as an afterthought will fall behind the threat curve.

Second, vendor consolidation accelerates. The report highlights Trend Micro's Vision One platform as an example of integrated IoT security for hybrid IT/OT environments. Enterprises managing hundreds of thousands of IoT devices across factories, campuses, and logistics networks increasingly prefer broad security platforms over fragmented point tools for device authentication, firmware updates, and anomaly detection. The platformization trend mirrors what happened in endpoint security five years ago — buyers want fewer vendors, not more.

Third, the threat surface expansion justifies dedicated IoT security staff and tools. The report's explicit link between IoT attack growth and security spending validates what many enterprises already see: IoT devices ship with weak default credentials, infrequent patches, and poor logging. Securing them requires dedicated tooling — device discovery, micro-segmentation, behavioral analytics — that traditional firewalls and endpoint agents do not cover.

Market Forecast Variance Creates Budget Planning Risk

Other recent IoT security forecasts show wildly different numbers, creating planning risk for enterprises triangulating vendor claims against market data. Straits Research pegs the 2026 IoT security market at $57.26 billion, nearly four times The Business Research Company's $14.86 billion estimate. Fortune Business Insights projects $58.35 billion in 2026, growing to $425.70 billion by 2034 at a 28.2% CAGR. Roots Analysis forecasts $48 billion in 2026 and $511 billion by 2040 at an 18.44% CAGR.

The discrepancies stem from methodology — what counts as "IoT security" versus "IoT cybersecurity" or "IoT platform security." Some studies include identity management, compliance tools, and analytics platforms. Others focus narrowly on device-level security: encryption, secure boot, PKI, and firmware validation.

For enterprise buyers, the variance matters because it signals vendor positioning battles. Cloud IoT platform providers like AWS IoT, Azure IoT, and Google Cloud IoT bundle security features but may not match dedicated security vendors on detection and response depth. Specialist IoT security vendors sell point products — device agents, gateways, secure update servers — but lack the integration enterprises want. Security platform vendors like Trend Micro, Palo Alto Networks, and Fortinet extend existing network or endpoint platforms to cover IoT, betting enterprises prefer unified consoles over best-of-breed tools.

What to Watch

The 32% growth rate implies IoT security vendor M&A will accelerate. Large security platform vendors will acquire specialist IoT security companies to fill product gaps rather than build internally. Enterprises evaluating IoT security vendors should ask about product roadmaps and ownership stability — a vendor acquired mid-deployment creates integration risk.

The threat driver — expanding IoT attack surface — also means regulatory pressure will increase. Expect IoT-specific security mandates in critical infrastructure sectors (energy, water, transportation) within 18 months, mirroring recent FDA guidance on medical device cybersecurity. Enterprises in regulated industries should budget for compliance tooling now rather than retrofit after mandates arrive.

Finally, the gap between market forecasts suggests enterprises should baseline their own IoT security spending against peers, not market averages. A $45 billion market by 2030 means large enterprises will spend $10-50 million annually on IoT security, depending on device count and vertical. That spending level requires dedicated staff, platform choices, and vendor relationships — not ad hoc tool purchases.