A few years ago, the system integrator’s job in a private wireless deployment was fairly well-defined: assess the site, source the gear, install it, and hand over the keys. That picture has changed considerably. The private cellular market is growing fast, enterprise expectations have shifted, and the complexity sitting between a radio access node and a meaningful business outcome has multiplied. What SIs are being asked to do now looks a lot less like contracting and a lot more like strategy.
The Market Is Pulling SIs in New Directions
Private LTE and 5G networks are no longer a niche conversation for a handful of manufacturing plants and defense installations. According to SNS Telecom & IT, global spending on private LTE and 5G network infrastructure for vertical industries will grow at a compound annual growth rate of approximately 22% between 2025 and 2028, eventually exceeding $7.2 billion by the end of 2028. In the U.S., CBRS has been a particular accelerator, giving enterprises a path to dedicated wireless connectivity without the cost or complexity of traditional licensed spectrum. That opening has drawn in a wider mix of buyers – warehouses, hospitals, airports, and campuses – each with its own operational quirks and technology stacks.
That diversity of buyers is exactly what’s making life more interesting and more demanding for SIs. Each vertical carries its own set of legacy systems, compliance requirements, and tolerance for downtime. The integrator who shows up with a one-size-fits-all playbook is going to have a rough time.
From Installers to Architects
The shift happening right now is not subtle. SIs that are historically focused on physical infrastructure are now expected to weigh in on core network design, edge computing architecture, spectrum strategy, and application integration. One German integrator has developed its own in-house 4G/5G packet core software solution, sourcing radio and hardware components from partners but owning the software layer entirely. That kind of vertical integration from an SI would have been unusual five years ago. It’s becoming a competitive differentiator today.
This isn’t about scope creep. It’s a direct response to what enterprises actually need. Most industrial buyers do not have deep cellular expertise in-house. They need a partner who can take a business problem – say, unreliable connectivity on an automated vehicle path – and trace it all the way from spectrum allocation to application performance. That’s a different skill set than pulling cable.
OT Meets IT, and Someone Has to Broker the Meeting
The IT/OT convergence question sits at the center of almost every serious private network conversation right now. Manufacturers, logistics operators, and utilities are sitting on decades of operational technology – PLCs, SCADA systems, distributed control systems – that were never designed to talk to modern enterprise IT infrastructure. Private 5G is being positioned as the connective tissue that finally bridges those worlds. But bridging them takes more than a radio signal.
Research from Telstra International and Omdia found that around 70% of OT systems in companies across the U.S., Latin America, and Europe will be connected to corporate IT networks within the next year, up from 50% currently. That’s a massive wave of integration work heading straight for the market. Someone has to understand both sides of the equation: the latency requirements of a PLC and the data governance requirements of the enterprise systems it now feeds. SIs who can speak both languages are in short supply, which is exactly why the ones who have built that capability are winning.
The Security Problem SIs Now Own
Here is where the stakes get higher. The same Telstra/Omdia research found that 75% of cyber incidents impacting manufacturing firms in the past year targeted converged IT/OT systems. A private cellular network connected to operational infrastructure is not just a connectivity upgrade – it is also a new attack surface. This is pushing SIs to design security in from the start rather than bolt it on at the end of a deployment, covering device authentication, network segmentation, and ongoing threat monitoring.
Project-based work is not disappearing, but the business model is shifting. Enterprises that have invested in a private network don’t just want it installed – they want it running well six months later, and two years after that. This is pushing SIs toward managed services agreements and long-term operational partnerships, a model that requires different internal capabilities around monitoring, remote support, and service assurance.
Carriers and Hyperscalers Are at the Table Too
The partner ecosystem around private networks has gotten more crowded, and SIs are navigating a more complex web of relationships as a result. Carriers like T-Mobile and Verizon offer their own private network solutions and often need SI partners to handle the OT integration and application layers they lack the expertise to manage. Hyperscalers are enabling cloud-native private 5G solutions through partnerships with both operators and SIs. As NAND Research notes, the Telecom Infra Project has specifically highlighted the SI’s role in simplifying the complex deployment processes for private networks through automation, making private 5G more consumable for a broader enterprise market that would otherwise struggle to evaluate a multi-vendor technology stack.
These co-selling and white-label arrangements can work well for all parties, but they also require SIs to be clear about where they add value and where they’re filling a gap for someone else. The SIs thriving in this environment are the ones who’ve defined that answer very precisely.
Where This Is Heading
The integrators who will define this market over the next three to five years are not waiting for RFPs to arrive. They’re building vertical expertise, developing relationships with platform vendors early, and rethinking their revenue model around recurring service contracts rather than one-time deployment fees. The technology is only one piece of what enterprises are buying. They’re also buying confidence – confidence that a complex system built from multiple vendors, running on shared spectrum, connected to machines that can’t afford downtime, is going to work.
That confidence has to come from somewhere. Right now, it’s coming from the integrators who’ve done the hard work of becoming genuine specialists. The ones still selling installs are already falling behind.
