NoPorts is a commercial zero trust network access solution by Atsign. Zscaler Private Access (ZPA) is a commercial zero trust network access solution by Zscaler. Features, integrations, deployment and the company behind each one, side by side.
What our shortlists say about the one we picked.
Best for: Large companies wanting cloud-brokered access with traffic inspection
It earns its place because it inspects private app traffic as well as brokering it, so access and threat checks happen in one step. It runs as a hybrid service from SMB to enterprise, with on-premises edges if some traffic must stay local. Only AWS and Azure are listed as integrations, so ask how ZPA works with your identity provider and SIEM.
From Best ZTNA Solutions for Business, Fall 2026
Reviewed by Nika (Nikoloz) Kokhreidze.
Zero-open-port remote access via cryptographic identity-first connectivity.
ZTNA solution providing secure user-to-app access without network exposure
See more solutions in this category, or build a security stack from your picks.
Based on what each listing shows: deployment, company size, price and open source.
NoPorts fits if you want a cloud product.
Zscaler Private Access (ZPA) fits if you need both cloud and on-premises options.
Common questions when comparing NoPorts vs Zscaler Private Access (ZPA) for zero trust network access.
NoPorts: Zero-open-port remote access via cryptographic identity-first connectivity. Built by Atsign.
Zscaler Private Access (ZPA): ZTNA solution providing secure user-to-app access without network exposure. Built by Zscaler.
The table above shows where their features, integrations, deployment and company size fit differ.
NoPorts is made by Atsign. Zscaler Private Access (ZPA) is made by Zscaler. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. NoPorts and Zscaler Private Access (ZPA) are both Zero Trust Network Access products, and both cover Remote Access, ZTNA. Use the table above to see where features, deployment and company size fit differ.
Need the answer fast? Best ZTNA Solutions for Business picks Zscaler Private Access (ZPA), Netskope One Private Access, Palo Alto Networks Prisma Access ZTNA 2.0 and 4 more.See the shortlist
