Infrastructure — Network
Network design and management for New York businesses
If it isn’t documented, it isn’t managed — it’s memorized. Stedholm designs networks on paper before they exist in hardware, and manages them with monitoring, configuration backups, and change control you can inspect.
Documentation-first is a working method, not a slogan
Every network decision worth making is easier with an accurate picture in front of you, and nearly impossible without one. When the diagram is current, a new VLAN is an afternoon; when it is folklore, the same change is a gamble taken after hours with fingers crossed. Most of what the industry calls “network emergencies” are ordinary changes performed blind.
Design, for us, means segmentation that reflects how your business actually trusts things — servers, users, guests, printers, cameras, and building systems on separate VLANs with deliberate rules between them; an addressing plan with room to grow; and resilience where the business case supports it, not everywhere reflexively. Segmentation is also the control that keeps an intruder’s foothold from becoming the whole network — which is why we design it jointly with our security practice.
Management means the unglamorous cadence that keeps the design true: monitoring around the clock by our tooling with engineer escalation, configuration backed up before every change, firmware on a schedule, and the diagram updated the day the network changes — not the quarter after. This service is part of infrastructure services, alongside Wi-Fi, SD-WAN, and firewalls and virtualization and servers.
What’s included
Assessment and as-built documentation
We map what actually exists — diagram, addressing, VLANs, and the undocumented dependencies — before proposing anything.
Design
Segmentation, IP addressing plans, routing, and redundancy designed from your requirements and written down before purchase orders exist.
Configuration backup and change history
Every managed device backed up automatically, with a diff trail — so any change can be explained and any device replaced from record.
Monitoring and alerting
Up/down, capacity, errors, and circuit health watched continuously by our tooling, with engineer escalation and a published escalation path.
Switching and routing management
VLAN and port administration, firmware lifecycle, and the discipline of leaving every closet better documented than we found it.
ISP and carrier coordination
Circuit orders, outage escalations, and the hold music — handled by us, with your account documented so it never depends on one person’s memory.
Taking over an existing network
The order matters: understand, stabilize, then improve.
Discover and document
We walk the closets, trace what the labels lie about, and produce the as-built diagram and inventory — usually the first accurate picture the business has had in years.
Stabilize
Configuration backups, monitoring, credential custody, and firmware currency come first. No redesigns while the ground is still moving.
Improve on a plan
Segmentation, resilience, and lifecycle fixes land in priority order, each as a change-controlled step with a rollback — not as one heroic weekend.
Common questions
Our network works. Why does design matter?
It matters the day something changes — an office move, an acquisition, a ransomware incident, an insurance questionnaire asking about segmentation. A flat, undocumented network makes every one of those events slower and more expensive. Design is what makes change cheap.
What do we get if we leave?
Everything: diagrams, addressing plans, configuration backups, credentials, and the monitoring runbook. The next provider inherits a described environment. We would rather earn retention than engineer it.
Do you also handle firewalls and Wi-Fi?
Yes — the edge is its own service with its own page: Wi-Fi, SD-WAN, and firewalls. Designing the LAN and the edge together is precisely the point of having one team do both.
Can you support offices outside the city?
Yes. We cover the Tri-State area remote-first, with onsite work where it is genuinely needed — multi-site design is where this discipline earns its keep. See locations.
Get an accurate picture of your network.
The assessment produces the as-built documentation — you keep it whatever you decide next.