NaaS vs. SASE: How They Differ and Where They Overlap

Both are subscription models, which is why they get compared — but they sit at different points in the stack. NaaS is about the network you run from; SASE is about securely connecting people and sites to apps and the internet. The sections below make the distinction concrete and show where they intersect.

New to the category? Start with what NaaS is → or the full Network as a Service guide →

NaaS vs. SASE at a glance.

	Network as a Service (NaaS)	SASE
Primary focus	Managed on-prem LAN & Wi-Fi	Cloud-delivered networking + security
Where it lives	Inside your buildings	In the cloud, at the edge
Security model	Network-layer; some include zero-trust	Security is the core — SWG, CASB, ZTNA, FWaaS
Hardware	Provider-owned switches & APs, included	Mostly software/cloud; light edge devices
Who it serves	Sites that need wired/wireless infrastructure	Distributed users, remote work, cloud apps
Replaces	Buying & running building networks	Stacked point security appliances + VPN
Billing	One monthly subscription	Per-user / per-service subscription

The overlap is security.

Different layers, shared goal

NaaS gives you a healthy, managed network to operate from; SASE secures how that network's users and traffic reach cloud apps and the internet. Together they cover infrastructure and secure access.

Some NaaS includes zero-trust

Security-first NaaS providers build zero-trust segmentation into the fabric — overlapping with SASE's ZTNA goals at the LAN level, while SASE extends that posture to remote and cloud edges.

Not an either/or choice

If you need managed in-building networking, that's NaaS. If you need to secure a distributed, cloud-first workforce, that's SASE. A modern environment often wants both.

Match the model to the need.

Lean toward NaaS when…

You need switches and Wi-Fi delivered and operated as a service
Your in-building network is due for a refresh
Your IT team is lean and wants infrastructure off its plate
You want predictable monthly cost instead of hardware refresh cycles

Lean toward SASE when…

You're securing a distributed or remote-first workforce
You want to consolidate VPN and stacked security appliances
Most of your apps and traffic live in the cloud
Zero-trust access for users and branches is the priority

NaaS vs. SASE, answered

No. SASE converges WAN networking with cloud-delivered security services; NaaS focuses on managed on-premises LAN and Wi-Fi infrastructure. Both are as-a-service models but target different layers of your network.

Yes. NaaS provides the managed network infrastructure inside your sites, while SASE secures how users and traffic connect to cloud applications and the internet. They complement each other — one handles the infrastructure layer, the other handles secure access at the edge.

It varies. Most NaaS covers network-layer security, and security-first providers build zero-trust segmentation directly into the fabric. That overlaps with SASE's goals at the LAN level, but SASE extends security to remote users and cloud edges in ways a building-focused NaaS typically doesn't. Confirm the security scope provider-by-provider.

Possibly — they solve different problems. SASE secures connectivity to apps and the internet, but it doesn't deliver and operate the switches and Wi-Fi inside your buildings. If that in-building infrastructure still needs to be bought, run, and refreshed, NaaS addresses it. An advisor can map both to your environment.