IT Services and Cybersecurity in Brooklyn, NY
NetSys is a Brooklyn IT company. Our only office is on Prospect Park Southwest in Park Slope, and from it we run the help desk, Microsoft 365, cybersecurity, networks and recovery for organizations across the borough, from Navy Yard manufacturers and DUMBO studios to Borough Park practices and Red Hook warehouses, with engineers a short drive away when something needs hands.
The short answer
NetSys provides IT services and cybersecurity across Brooklyn, which is all of Kings County, from our only office at 1 Prospect Park SW in Park Slope. That covers an engineer-staffed help desk, Microsoft 365 and device management, managed detection and response, email security, firewalls and Wi-Fi, and backups we restore on a schedule. Support is on-site and remote: most issues are fixed remotely first, and engineers drive out for cabling, hardware, network changes and moves, usually 10 to 45 minutes away. Managed IT is priced per user per month after an assessment, projects are quoted after scoping, and agreements run month to month.
- One office, in Brooklyn, NY; 1 Prospect Park SW in Park Slope, inside the borough our engineers cover on site
- Downtown Brooklyn is about 10 minutes from the office by car; Greenpoint, Canarsie and Coney Island are 30 to 45 minutes
- 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 Brooklyn IT company should take off your plate
Brooklyn's economy is built on small firms. The State Comptroller found that private-sector businesses in the borough grew nearly 32 percent between 2010 and 2019, faster than in any other borough, with micro-businesses of fewer than ten employees driving most of the increase. Few of those firms employ anyone in IT, so the job lands on an office manager or a partner. NetSys takes the whole function: the help desk your staff call, Microsoft 365 and licensing, laptops and phones enrolled in Intune, the firewall and Wi-Fi, ThreatDown managed detection and response, Barracuda email filtering, Datto or Veeam backups, and the calls to your internet carrier, copier company and software vendors. Each service has its own Brooklyn page with the detail, from managed IT and the help desk to network security and disaster recovery. This page explains how they fit together for an organization in the borough and who to call when something breaks.
On-site and remote support anywhere in Kings County
Kings County and Brooklyn are the same place, so every address in the county sits inside the area our engineers cover in person. From the office on Prospect Park Southwest, Downtown Brooklyn is about ten minutes by car, DUMBO and Sunset Park fifteen to twenty, Williamsburg and Bay Ridge around half an hour, and Greenpoint, Canarsie or Coney Island 30 to 45 minutes depending on the BQE and the Belt Parkway. Most problems are fixed remotely first through NinjaOne, because a remote session is faster than a car. Engineers come to you for the work that needs hands: a failed switch in a basement closet, new cabling, a firewall swap, a printer replacement, an office move or a day of laptop handouts. Critical issues get a phone response within ten minutes and remote work within thirty, and severe problems such as ransomware or a dead internet connection go straight to your dedicated engineer.
Where Brooklyn businesses work, and the IT each area brings
Brooklyn's commercial map runs along the waterfront and around the courts. Downtown Brooklyn mixes the MetroTech office complex, the state and federal courthouses and the law and accounting offices near Court and Montague Streets. DUMBO was recognized as a New York City Design District in May 2025 and houses architecture studios in converted loft buildings. The Brooklyn Navy Yard reports more than 550 businesses and 13,000 jobs across 300 acres, and Industry City in Sunset Park passed 650 businesses across 16 buildings in 2025. Further south, the Brooklyn Army Terminal and the Sunset Park waterfront hold manufacturers, food companies and distributors, while Red Hook combines a working container port with last-mile delivery warehouses. Medical offices gather near the hospitals in Borough Park, Park Slope, East Flatbush and Downtown. Each setting changes the design: fiber in a modern campus building, one coax line in a loft, a warehouse floor that needs Wi-Fi to the last rack.
Industries in Brooklyn and the systems they depend on
Education and health services are Brooklyn's largest employment sectors, according to the State Comptroller, which is why practices lead this list. Physician offices and urgent care centers need HIPAA safeguards around the EHR and billing system, e-prescribing with two-factor sign-in and an internet connection that does not take the front desk down with it. Law firms need the document management system locked to matter teams and a defensible answer about where client files live. Accounting and tax practices answer to the FTC Safeguards Rule and IRS Publication 4557. Architecture and engineering studios move large model files between the office, home and job sites. Distributors and logistics companies run a warehouse system, handheld scanners and EDI connections that have to work every shift. Consulting, marketing and advisory firms complete client security questionnaires before they win the work. Each of these industries has its own Brooklyn page, linked below, describing what we set up.
Lofts, floods and outages: Brooklyn's local IT risks
Brooklyn's buildings and coastline set its risks. Converted factories in Gowanus, Bushwick and Sunset Park often come with a single internet circuit, a router the landlord installed and a riser shared with residential tenants. Water is the bigger threat. Hurricane Sandy flooded Red Hook's warehouse blocks in 2012, the remnants of Ida brought a federal disaster declaration covering Kings County in 2021, and on September 29, 2023 more than eight inches of rain fell on parts of the borough, which led to another declaration (FEMA-4755-DR). Power can fail too: in a July 2019 heat wave Con Edison deliberately cut about 30,000 customers in Canarsie, Flatlands and Mill Basin to protect its equipment. Cyber incidents have hit the borough directly. One Brooklyn Health's three hospitals lost access to systems after a November 2022 attack, and the investigation found intruders had been inside since July. We design for all of it with off-site immutable backups, cellular failover, UPS runtime and servers kept off basement floors.
New York rules for Brooklyn businesses
Every Brooklyn business holding New Yorkers' private information falls under the SHIELD Act. General Business Law 899-bb requires reasonable administrative, technical and physical safeguards, scaled for small businesses (fewer than 50 employees, under $3 million in gross annual revenue, or a year-end assets test), and lists examples such as training staff, testing key controls and choosing service providers able to protect the data. Section 899-aa sets a 30-day limit, counted from discovery, for notifying affected residents of a breach, with notice to the Attorney General, the Department of State and the State Police. Industry rules sit on top: the HIPAA Security Rule for practices, the FTC Safeguards Rule and IRS Publication 4557 for tax preparers, NYDFS 23 NYCRR Part 500 for licensed financial and insurance firms, and ABA Model Rule 1.6(c) for lawyers. A business that complies with HIPAA, the Gramm-Leach-Bliley rules or Part 500 is deemed to meet the 899-bb safeguards duty. This is general information, not legal advice.
Towns and neighborhoods we cover around Brooklyn, NY
- Downtown Brooklyn
- DUMBO
- Brooklyn Heights
- Park Slope
- Gowanus
- Red Hook
- Sunset Park
- Industry City
- Bay Ridge
- Borough Park
- Williamsburg
- Greenpoint
- Bushwick
- Bedford-Stuyvesant
- Crown Heights
- Flatbush
- Brooklyn Navy Yard
- Sheepshead Bay
- Canarsie
- Coney Island
Examples of our client work
- Healthcare
Three-location urgent care group
IT support for 36 workstations, patient data backups, endpoint protection, and secure networking across all three locations.
- Law firms
Elder law firm
SharePoint document organization for 28 employees, secure client file sharing, email encryption, and employee access controls.
- 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.
Client names are withheld. These examples were chosen for the work involved, not for where the client is, so none is presented as a Brooklyn, NY client.
Services in Brooklyn, NY
Industry depth: IT for Healthcare · IT for Law Firms · IT for Accounting Firms · IT for A&E Firms · Logistics · Consulting Firms
Also from NetSys: small business IT support · 24/7 IT support
Next steps: Managed IT services in Brooklyn · IT support and help desk in Brooklyn · Cybersecurity for Brooklyn businesses · Network security in Brooklyn · Backup and disaster recovery in Brooklyn · IT consulting in Brooklyn · IT support for Brooklyn medical offices · Urgent care IT support in Brooklyn · IT support for Brooklyn architecture firms · Logistics IT support in Brooklyn · IT support for Brooklyn professional services firms · Managed IT across New York State
Nearby: New York City · Manhattan, NY · Queens, NY · Staten Island, NY · Jersey City, NJ
More in New York City: Long Island City, NY · The Bronx, NY · Tri-State Area
NetSys vs. DAG Tech
DAG Tech ranks on the first page for IT services in Brooklyn, NY. 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 | DAG Tech | |
|---|---|---|
| Agreement | Month to month. Leave any time, no early-exit penalty. | Their flat-rate plans page publishes three contract-term options with stated discounts, a no-setup-fee statement, and a 30-day notice requirement for downgrades. (dagtech.com) |
| What the monthly fee covers | One agreement: AI services, cybersecurity, managed IT with help desk, PAM, PIM and disaster recovery planning. | Their flat-rate page publishes a feature comparison table naming the specific vendor product behind each item, plus a two-column list of what is inside and outside the monthly rate. (dagtech.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. | They publish a dedicated AI Consulting service page listing nine named AI offerings. (dagtech.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 MSP page states that disaster recovery planning is part of managed services and lists backup and disaster recovery management as a supported service. (dagtech.com) |
| Who answers | A NetSys engineer, plus a named account manager who gives you a real cell number. | They publish 24/7 helpdesk coverage on all three flat-rate plans and a named senior engineer per account, and state that on-site response is included on the two upper plans while on Base it is billed at an hourly rate with a four-hour minimum dispatch. (dagtech.com) |
| Response commitments | Written into the agreement rather than implied on the website. | Their Clarity IT page publishes the SLA's KPI categories and its minimum monthly contract tiers, and points to a separate SLA document at their terms-and-conditions URL. (dagtech.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 flat-rate page publishes a four-question plan recommendation tool that requires no email address, and references booking a 15-minute fit call. (dagtech.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 locations page publishes street addresses and local phone numbers for 11 offices across the US, Canada and the UK, with four more listed as coming soon. (dagtech.com) |
DAG Tech appears here because it ranked on the first page of search results for IT services in Brooklyn, NY when we checked in September 2026. Everything in their column is drawn from pages published on https://www.dagtech.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 Brooklyn, NY: Netsurit · Systech MSP · Power Consulting · NeoTech Networks.
Comparing us with other Brooklyn, NY providers
We researched every firm below from what it publishes about itself, and each page says plainly when they are the better fit.
Brooklyn, NY FAQs
Who provides IT services in Brooklyn?
Brooklyn has one-person computer shops, Manhattan managed service providers that send a technician over the bridge, and firms like NetSys whose office is in the borough. NetSys has worked in New York since 1998, now from 1 Prospect Park SW, Suite 6E, and its engineers hold degrees in electrical engineering, electronics engineering and computer science along with Cisco and Microsoft certifications. When you compare providers, ask who answers at 6 a.m., whether backups are restore-tested, how fast a critical ticket gets a call back, what security the fee includes and how you would leave.
Do you provide on-site IT support in Brooklyn?
Yes. Brooklyn is our home borough, and engineers from the Park Slope office come to your premises for the work that needs hands: cabling, network closets, firewall and switch replacements, new-hire desk setups, conference-room equipment and office moves. Day-to-day tickets are usually solved remotely first, which is quicker for your staff. Most of the borough is 10 to 45 minutes away by car. 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.
Where in Kings County do you provide on-site support?
Everywhere in it. Kings County is the legal name for Brooklyn, and the county line and the borough line are the same, so an office in Greenpoint, a clinic in Canarsie, a warehouse in Red Hook and a studio at the Navy Yard all sit well inside the 50-mile area our engineers cover in person. The same goes for the neighboring boroughs, Nassau County, Westchester and North Jersey. Searching for an IT company in Kings County or an IT company in Brooklyn leads to the same people and the same service.
What IT services do you offer businesses in Brooklyn and Kings County?
Managed IT, which covers the whole environment and your vendors; IT support and the help desk; cybersecurity built on ThreatDown managed detection and response, Microsoft Defender for Business and KnowBe4 training; network security with Meraki or Fortinet firewalls, segmentation and Wi-Fi; backup and disaster recovery on Datto SIRIS or Veeam; and IT consulting for migrations, office moves and projects. Microsoft 365, Intune and Entra ID Conditional Access run underneath most of it. Each service has its own Brooklyn page, and they can be combined in one agreement.
How much do IT services cost for a Brooklyn business?
Managed IT and IT support are priced per user per month, set after an assessment of your environment, and we do not publish a rate card. The figure moves with headcount, the number of devices and locations, how much security and compliance work you need (a medical office's HIPAA documentation adds work a five-person design studio does not need) and how much on-site time the office needs. Projects such as an office build-out, a server replacement or a cloud migration are quoted separately after scoping. Agreements run month to month.
Can you support a business in a loft, a converted factory or a coworking space?
Yes, though each needs a different starting point. In a converted building in Gowanus, Bushwick or Sunset Park we usually find one coax circuit, a consumer router and a flat network shared by staff, guests and cameras, so the first work is a business firewall, separate networks and a second internet path. Campus buildings at the Navy Yard or Industry City often have fiber available but need a closet and cabling plan. In a coworking suite the operator owns the network, so we secure devices and accounts instead, with Intune, Defender and Conditional Access.
What happens in the first month after a Brooklyn business switches to NetSys?
Week one is discovery: an engineer visits, inventories devices, accounts, circuits and software, and records everything in IT Glue. In weeks two and three we deploy NinjaOne and ThreatDown to every computer, turn on multifactor authentication, move email filtering to Barracuda and start backups with a first test restore. We also take over vendor contacts from your previous provider through an authorized handover. By week four your staff use the help desk for everything, you have a dedicated account manager with a real cell number, and you hold a ranked list of the risks we found.
Is there a free way to test our security before we commit?
There is one. NetSys offers a free external penetration test: a remote test of what your business exposes to the internet, such as firewalls, remote-access portals and mail servers, within a scope we agree with you in writing. It does not include an internal network review, a site visit or a compliance audit; those are separate paid engagements with their own scope. The report shows what an attacker can see from outside, which is a useful starting point for any decision about your current setup or provider.
Can we keep our internal IT person, or move over from another provider?
Both work. With co-managed IT, your in-house person keeps the tasks they know best, such as specialist software or user training, and NetSys takes the rest: monitoring, patching, security alerts, backups and after-hours escalation, under a written split of responsibilities and shared tools. When you are leaving another provider, we start with authorized access, passwords, documentation, licenses and backup copies, then cut over on an agreed date. Switching does not mean rebuilding everything; we keep what is sound and replace what is not.
Talk to an engineer whose office is in your borough.
Tell us your headcount, address and what keeps breaking. We will explain what we would fix first, how the per-user fee would be set and what an on-site visit would cover.