IT Services and Cybersecurity in New York City

NetSys is a Brooklyn IT company that has supported New York organizations since 1998. One team runs the help desk, the security stack, Microsoft 365 and IT projects, and engineers travel from our Park Slope office to buildings in all five boroughs when work needs hands. Offices in two boroughs and staff at home fit under one plan.

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The short answer

NetSys provides IT services and cybersecurity to New York City organizations from its only office, in Park Slope, Brooklyn: help desk, managed IT, security monitoring and response, Microsoft 365, backups and IT projects. Engineers resolve most problems remotely and come on site anywhere in the five boroughs when hardware, cabling or a network closet needs hands. Monitoring and emergency service run 24/7; the help desk is staffed seven days a week from 4 a.m. to 11 p.m. Eastern time. Managed IT is priced per user per month after an assessment, and agreements run month to month.

One office, in Brooklyn, NY: 1 Prospect Park SW, Suite 6E, in Park Slope
On-site engineering in Manhattan, Brooklyn, Queens, the Bronx and Staten Island, with most issues resolved remotely first
Monitoring and emergency service run 24/7; the help desk is staffed seven days a week from 4 a.m. to 11 p.m. Eastern time
Month-to-month agreements and 98% client retention

What a New York City office hands to one IT provider

The organizations we fit best in the city have 10 to 75 people, one or two offices, staff who work from home part of the week, and nobody whose full-time job is IT. NetSys takes over the whole environment: the help desk, laptops and phones, Microsoft 365 and Entra ID, the firewall, switches and Wi-Fi, endpoint detection and response, email protection, backups, and the documentation behind all of it in IT Glue. We also manage the outside parties that make city IT complicated: the carrier in the riser, building management and its contractor rules, the software vendors for your practice or accounting systems, and the copier company. Firms with an internal IT person can keep that person and use us for co-managed support, with a written split of who owns what.

How on-site and remote support work across the five boroughs

We have one office, at 1 Prospect Park SW in Park Slope, on the edge of Prospect Park. From there the Financial District is about 25 minutes by subway, Midtown 35 to 45, Long Island City about 40 and Flushing roughly an hour, and engineers drive to Staten Island across the Verrazzano-Narrows Bridge or to the Bronx when they carry equipment. Most problems never need the trip: the help desk connects remotely and fixes them during the call, and our written commitments give critical issues a ten-minute phone response and a thirty-minute remote response. Engineers come in person for cabling, closets, firewalls and Wi-Fi, servers, new-hire desks, conference rooms and office moves, and they book freight elevators and after-hours windows with building management before a date is set.

The industries that shape IT work in New York City

New York's economy runs on firms that sell expertise. The city's workforce development plan puts professional and business services at about 759,000 jobs in 2024, or 16.5 percent of nonfarm employment, and alongside them sit dense clusters of law firms, accounting practices, wealth managers, medical offices and urgent care centers, architects and engineers, nonprofits and importers. Each brings its own systems and expectations. A law firm cares about its document management system and matter security; an accounting firm about tax software and seasonal staff; an adviser about custodian access and texting records; a physician office about e-prescribing and the patient portal; a design studio about model files. We support the devices, accounts, networks and vendors around those systems, and our industry pages for the city explain each in detail.

Buildings, circuits and the outages New York actually has

Many older towers in Midtown and the Financial District still have one carrier in the riser, landlords decide when contractors may work, and co-working floors put your staff on someone else's network. Those details shape the design: a second internet path where the building allows one, laptops secured on their own when the network is not yours, and closets documented before cutover day. The outages that hit city offices are mostly power and water. On July 13, 2019 a relay fault at a Con Edison substation left about 73,000 customers on Manhattan's West Side in the dark for an evening. Sandy cut power to most of Manhattan below 34th Street for about four days in 2012, and the remnants of Ida flooded basements across the city in September 2021, with a FEMA disaster declaration covering all five boroughs.

Cyber incidents the city has already lived through

New York organizations have seen what one weak point costs. In June 2021 the city's Law Department, with about 1,000 lawyers, was disconnected from the network after an intrusion that reports tied to a stolen employee password, and the outage delayed court cases. In November 2022 One Brooklyn Health's three hospitals lost access to electronic records and worked on paper for weeks. In March 2026 NYC Health + Hospitals disclosed that an attacker, possibly entering through a third-party vendor, had been inside its network from November 2025 to February 2026, exposing data on about 1.8 million people. The controls that answer those cases are not exotic: multifactor authentication on every account, vendor access reviewed and removed when unused, endpoint detection with a team watching it, and backups an attacker cannot delete. Over the past three years NetSys has handled more than 30 ransomware incidents, with full recovery in every case.

New York rules that reach city businesses

Any business that keeps New Yorkers' private information is covered by the SHIELD Act. Under General Business Law §899-bb it must maintain reasonable administrative, technical and physical safeguards, with lighter expectations for small businesses, and under §899-aa it must notify affected people within 30 days of discovering a breach and also report to the Attorney General, the Department of State and the State Police, plus DFS for Part 500 covered entities. DFS licensees answer to 23 NYCRR 500, which since November 1, 2025 requires multifactor authentication for anyone accessing a covered entity's systems unless a limited exemption narrows it, and incidents must reach DFS within 72 hours. State law also requires written notice to employees whose email or internet use is monitored, and the city regulates automated hiring tools. This is general information, not legal advice.

Towns and neighborhoods we cover around New York City

Manhattan
Brooklyn
Queens
The Bronx
Staten Island
Financial District
Midtown Manhattan
Hudson Yards
Flatiron District
Upper East Side
Downtown Brooklyn
DUMBO
Williamsburg
Long Island City
Flushing
Jamaica
Hunts Point
St. George

From our published case studies

Law Office

IT problems were billing hours nobody could invoice. A move to Microsoft 365 with layered security and cloud-to-cloud backup gave the firm its time back.

Our published law office case study moved a 25-attorney firm in the greater New York metro from a closet file server to Microsoft 365 in four weeks, with cloud-to-cloud backup of the whole tenant. The study does not name the firm's borough, and we cite it for the migration and backup design rather than as a local result.

Read the case study

From our client work

Examples of our client work

Law firms
Elder law firm
SharePoint document organization for 28 employees, secure client file sharing, email encryption, and employee access controls.
SharePoint & OneDrive Migration IT for Legal
Accounting firms
Corporate accounting firm
Migration of 2 TB of business data to Azure, secure remote access for 42 employees, and backup and recovery configuration.
Azure Cloud Migration IT for Accounting and CPA Firms
Healthcare
Three-location urgent care group
IT support for 36 workstations, patient data backups, endpoint protection, and secure networking across all three locations.
IT Support IT for Healthcare

Client names are withheld. These examples were chosen for the work involved, not for where the client is, so none is presented as a New York City client.

What We Deliver Here

Services in New York City

NetSys vs. ETech 7

ETech 7 ranks on the first page for IT services in New York City. Their column below is drawn from their own published pages and links to each source. Ours states what we publish. Put the same questions to both.

	The NetSys Group	ETech 7
Agreement	Month to month. Leave any time, no early-exit penalty.	Their New York City page publishes a 100% money-back provision tied to a 90-day period and to whether services meet the agreed terms. (etech7.com)
What the monthly fee covers	One agreement: AI services, cybersecurity, managed IT with help desk, PAM, PIM and disaster recovery planning.	Their home page service menu lists managed servers, managed network, managed IT support, managed backup, server and workstation backup, disaster recovery, managed cloud, hosted servers, hosted apps, Microsoft Office 365, IT consulting, server virtualization, cyber security and hardware configuration. (etech7.com)
Privileged access and credentials	PAM and PIM in the base agreement, each with a published service page describing the work.	We could not find privileged access, privileged identity management or managed credentials named on their site.
AI and automation	In-house practice led by Jamie Baum: readiness assessments, Copilot rollouts, custom agents and workflow automation.	Their Manhattan page markets AI integration into client IT processes and AI-driven automation. (etech7.com)
Disaster recovery	A written plan plus restores that are performed and timed. More than 30 ransomware incidents handled in three years, every one recovered.	Their disaster recovery planning page describes disaster recovery planning aimed at reducing downtime and offers a downloadable disaster recovery plan document. (etech7.com)
Who answers	A NetSys engineer, plus a named account manager who gives you a real cell number.	Their FAQ page states support is available 24/7, 365 days a year, and that all contracts include onsite support. (etech7.com)
Response commitments	Written into the agreement rather than implied on the website.	Their FAQ page publishes an average response time and a separate emergency response figure. (etech7.com)
Proof before you commit	The free assessment is a remote external penetration test, limited to the information available to NetSys and the external scope we agree with you.	Their home page offers a free consultation and a free network assessment, plus downloadable guides including a free disaster recovery plan and a free cloud services guide. (etech7.com)
Where they are	One office, in Brooklyn. On-site across New York City, Nassau and western Suffolk, Westchester, Rockland, North and Central Jersey, the northern Jersey Shore and lower Fairfield County, CT, with remote managed IT nationwide.	Their home page lists three New York-area offices, 30 W 47th St #301, New York, NY 10036; 90 Merrick Ave 8th Floor, East Meadow, NY 11554; and 61-43 186th St Suite 1020, Fresh Meadows, NY 11365, and publishes the phone number (212) 997-1202. (etech7.com)

ETech 7 appears here because it ranked on the first page of search results for IT services in New York City when we checked in September 2026. Everything in their column is drawn from pages published on https://www.etech7.com/ and links to the source. Where we could not find something published we say so, which means we did not find it, not that it does not exist. We make no claim about the quality of their service. All trademarks belong to their owners and no affiliation or endorsement is implied.

Also ranking for IT services in New York City: Coretelligent · Longi Engineering.

Compare NetSys with every provider we have researched

Service pages for New York City

Comparing us with other New York City providers

We researched every firm below from what it publishes about itself, and each page says plainly when they are the better fit.

Common Questions

New York City FAQs

Who provides IT services and cybersecurity in New York City?

Many firms do, from national managed service providers to one-person shops. NetSys is a Brooklyn IT company founded in 1998, with one office in Park Slope and engineers who hold degrees in electrical engineering, electronics engineering and computer science and are certified in Cisco and Microsoft. We provide the help desk, managed IT, cybersecurity, Microsoft 365, backups and IT projects in one team, with on-site work in all five boroughs and agreements that run month to month.

Do you provide on-site IT support in New York City?

Yes. The city is our home territory, and engineers work on site in every borough, from St. George to Riverdale. The help desk resolves most issues remotely first, because that is faster for a password, a printer or a sync error. Engineers come in person for network closets, cabling, firewalls, Wi-Fi, servers, workstations, conference rooms and moves. Severe problems, such as ransomware, systems down, no internet or email down, go straight to your dedicated engineer.

How is managed IT priced for a New York City office?

Managed IT and IT support are priced per user per month after we assess the organization. The fee moves with headcount, the devices each person uses, the number of offices and boroughs, how much still runs on servers in the building, and how much compliance evidence you need for regulators, insurers or clients. Projects such as a move, a cabling job or a migration are quoted separately after scoping. We do not publish prices, and there is no long-term contract.

Can one agreement cover offices in two boroughs and staff at home?

Yes. Offices in different boroughs run as one environment: the same identity and Conditional Access rules, the same device builds, one network design and one written inventory. Staff at home get managed laptops with endpoint detection, encrypted disks and multifactor sign-in, so the office network is not the only thing protecting company data. Each office's circuit, closet, building contacts and access rules are documented separately, because a Midtown tower and a Long Island City loft need different visits.

What happens in the first month with a new NYC IT provider?

The first month documents and protects before it replaces anything. We gather administrator credentials and vendor contacts, map every device and the Microsoft 365 tenant, run NinjaOne monitoring and ThreatDown endpoint detection next to the old tools, and prove that a backup actually restores. Urgent gaps, such as accounts without multifactor authentication or a remote desktop port open to the internet, are closed in the first weeks. Your staff switch to our help desk at the end, when no system still relies on the outgoing provider.

Is NetSys an IT company or a cybersecurity company?

Both, in one team. Managed IT agreements are built with security in them, drawing on ThreatDown managed detection and response, Microsoft Defender for Business, Barracuda email protection, multifactor authentication, Rapid7 vulnerability scanning and immutable backups. We also sell security on its own: penetration testing, vCISO leadership, incident response and compliance work for HIPAA, the FTC Safeguards Rule and NYDFS Part 500. The free external penetration test, a remote test of your internet-facing systems within an agreed scope, is a common first step.

Do you support businesses in Staten Island and the Bronx?

Yes. Both boroughs are inside our on-site coverage. Staten Island is a drive across the Verrazzano-Narrows Bridge from Park Slope, and the Bronx, from Hunts Point and Port Morris to Fordham and Riverdale, is reached by car or subway. Offices there get the same help desk, monitoring and security as a Manhattan office, and engineers come out for the work that needs hands. Our Staten Island and Bronx pages cover each borough in more detail.

What should we ask before switching IT providers in New York City?

Ask which security tools are in the monthly fee and which cost extra, what the written response commitments are by severity, who answers at 5 a.m. and at 10 p.m., and how emergencies are handled overnight. Ask who will hold administrator access to Microsoft 365, the domain and the firewall, and what the provider hands back if you leave. In New York, also ask whether engineers will actually come to your building in your borough, and how they handle landlords and after-hours access.

Five boroughs, one team

Bring your New York offices under one IT team.

Tell us about your offices, your people and the systems you rely on. An engineer will walk through support, security and on-site coverage for each location.

Plan a provider change 845-203-3914