IT Services and Consulting in Long Island
NetSys provides IT consulting to businesses in Long Island: written assessments, roadmaps with real numbers, cloud and Microsoft 365 migrations, network designs, compliance programs and a virtual CIO who stays for the quarterly review. Engineers since 1998, not a sales deck. Our office is at 1 Prospect Park SW in Brooklyn, so Nassau County is 45 to 60 minutes from Park Slope by car and western Suffolk 60 to 90, so on-site visits to Garden City, Melville or Hauppauge are scheduled work rather than a special trip; engineers come to you for the work that needs hands, and monitoring and help desk run remotely around the clock. Most clients run between 10 and 75 seats, and every agreement is month to month.
The short answer
NetSys provides IT consulting to businesses in Long Island: assessments, technology roadmaps with costs, Microsoft 365 and Azure migrations, network and office designs, security and compliance programs and virtual CIO reviews. Engineers come to you for the work that needs hands; monitoring and help desk run remotely around the clock from our Brooklyn office. Most clients run between 10 and 75 seats, and every agreement is month to month.
How IT consulting is delivered in Long Island
Our office is at 1 Prospect Park SW in Brooklyn, so Nassau County is 45 to 60 minutes from Park Slope by car and western Suffolk 60 to 90, so on-site visits to Garden City, Melville or Hauppauge are scheduled work rather than a special trip; engineers come to you for the work that needs hands, and monitoring and help desk run remotely around the clock. The buildings decide a lot of the design. Office parks along Route 110 and the Long Island Expressway have carrier choice, but medical suites in older Garden City and Great Neck buildings often share one circuit across several practices, and Hauppauge industrial parks put the server closet next to the shop floor, so segmentation and a second path out are designed on the first visit. The carriers we see most in Long Island are Optimum Business, Verizon Fios and Lightpath, and the failover design starts with which of them actually reach your building.
Who IT consulting in Long Island is built for
Most of our Long Island work sits in Garden City, Melville, Hauppauge, Great Neck and Mineola: medical groups and surgical centers on athenahealth, manufacturers and aerospace suppliers on Epicor, accounting firms on CCH Axcess, law firms on Clio, insurance agencies on Applied Epic, and auto dealers on CDK Global. Each carries its own compliance load, which the section below covers, and each has a line-of-business vendor we coordinate with rather than work around. Companies with an internal IT person fit too; in that case we supply the monitoring, the security stack and the after-hours coverage behind them, and they keep their projects.
What tends to go wrong in Long Island
Two things shape the continuity design here. First, the weather and the grid: Sandy and Ida both flooded South Shore businesses, and summer thunderstorms take power out along the North Shore every year, so tested off-site backups and UPS runtime are part of every design. Second, the attacks that actually land locally are ordinary ones, and the public record shows how they go: the September 2022 ransomware attack on Suffolk County government, which took county websites, email and 911 support systems offline for weeks and was traced to an unpatched, internet-facing server. The controls in the next section are the ones that would have changed those stories.
IT Consulting in Long Island: what NetSys delivers
Assessment and roadmap
- A written assessment of every system, account, vendor and risk, produced from discovery rather than a questionnaire
- A 12-to-36-month technology roadmap with costs, sequencing and the decisions that depend on each other
- Budget modeling that compares an on-premises refresh with Microsoft 365, Azure and Azure Virtual Desktop on the same basis
- Vendor and contract review: licensing, ISP, telecom, software and support agreements, with what to cancel and what to renegotiate
Projects, designed and run
- Microsoft 365 and Azure migrations planned around identity first, with Entra ID, Conditional Access and Intune designed before data moves
- Network and office designs: Cisco Meraki or Fortinet firewalls, segmentation, Wi-Fi and failover, specified before the fit-out starts
- Security and compliance programs mapped to the standard you answer to, whether HIPAA, NYDFS Part 500, CMMC 2.0, SOC 2 or a cyber insurer's questionnaire
- Project management with a named engineer, a written plan, acceptance checks and a cutover that happens outside business hours
Ongoing advisory
- Virtual CIO service: a quarterly review with leadership covering risk, spend, projects and what changed
- IT due diligence for acquisitions, leases and vendor decisions, with findings in writing
- Line-of-business application decisions coordinated with the vendor, from CRM selection (Salesforce, HubSpot, GoHighLevel) to ERP
- An engineer who knows your environment on call for the decisions that come up between reviews
A 68-person medical group or surgical center in Garden City
The specific engagements behind this profile are under NDA, so it is written as a generalization rather than a named client. Our published, client-approved outcomes are in case studies.
A 68-person medical groups and surgical centers in Garden City facing a decision: the server running athenahealth is seven years old, the vendor has quoted a hardware refresh, and a cloud provider has quoted the opposite. The Microsoft 365 tenant was set up by a former employee and nobody knows what it can do. Nobody in the business can compare the two on the same basis, the Microsoft 365 tenant is licensed on plans nobody chose deliberately, and the lease has a network-drawing clause the landlord is now enforcing.
- Project plan with a named engineer, acceptance checks for each phase and a cutover scheduled outside business hours
- Virtual CIO cadence set: quarterly reviews with a roadmap, a budget and a change log, starting at the 90-day mark
- Discovery across every server, cloud tenant, device, circuit and contract, documented in IT Glue and reviewed with leadership before anything is proposed
- Workload-by-workload cloud assessment: each on-premises system sized for Azure, priced against a hardware refresh, and sequenced by dependency
- SharePoint information architecture designed by function and role before the file migration, so permissions follow the business rather than whoever created a folder
- Licensing audit of Microsoft 365 and the security stack, with unused seats reclaimed and Business Premium compared with the tools bought separately
Leadership gets a written assessment, a roadmap with costs and the order to do things in, and an engineer who stays on for the quarterly reviews. Decisions stop being made from vendor quotes. Consulting is priced by the project, and ongoing advisory runs month to month.
Large international food importer: the whole platform rebuilt in Azure
An extreme weather event knocked out power and connectivity to a food importer's building and cut a 120-person, three-warehouse business off from suppliers and clients worldwide for days. NetSys ran a two-week assessment of every workload with recovery objectives per system and a cost model comparing an on-premises refresh with Azure, designed a landing zone with hub-and-spoke networks and Entra ID Conditional Access, lifted the SQL environment to Azure SQL Managed Instance, rebuilt file shares on Azure Files, published applications through Azure Virtual Desktop, connected the warehouses by VPN, and layered Defender for Endpoint, Exchange Online Protection and immutable backups on top. The migration took ten weeks with a weekend cut-over.
Compliance in Long Island: the SHIELD Act and what sits on top of it
If you hold personal information on a resident of New York, the New York SHIELD Act (General Business Law § 899-bb) requires any business holding private information on a New York resident, with no employee-count threshold, to keep reasonable administrative, technical and physical safeguards, and § 899-aa sets the breach-notification duty. Small businesses get a scaled standard, not an exemption. Licensed financial businesses add NYDFS Part 500 (amended in November 2023, with multifactor authentication, asset inventories and annual certification now expected of nearly every covered entity). Healthcare practices layer HIPAA on top, and advisory firms answer to the SEC and FINRA. Consulting engagements map each requirement to a control, an owner and the evidence an auditor or insurer will ask for, before anything is bought. Most firms we take over have none of it documented, which is the part that matters if you ever have to demonstrate compliance, so the documentation is built during onboarding rather than sold as a separate project.
What IT consulting costs in Long Island
Consulting is priced by the project or by the review rather than by the hour: an assessment has a fixed price based on the size of the environment, a migration is quoted from the workload inventory, and virtual CIO advisory is a monthly figure that scales with how many reviews and decisions a year you need. What moves the number is the number of systems and sites, the compliance standard in play and whether we are also managing the environment afterwards. Every quote is written from discovery, and the terms run month to month.
Who this fits, and who it does not
Best fit: 10 to 150 employees, a decision on the table that involves cloud, an office move, an acquisition, a compliance program or a system nobody trusts, and leadership that wants options with numbers rather than a sales deck.
Not a fit: businesses looking for staff augmentation by the hour, or projects where the outcome has already been decided and only a signature is wanted. We consult to reach the right answer, which sometimes means telling you not to buy something.
Read next
Industry pages: IT for Healthcare · IT for Manufacturing
Terms used on this page: Virtual CIO (vCIO) · Microsoft Entra ID · Zero Trust
Guides: the cloud migration questions owners ask most · Google Workspace versus Microsoft 365 for a small business
Related pages
Read the full IT Consulting service page. See everything NetSys delivers in Long Island, NY.
Also in Long Island: Managed IT Services · IT Support · Network Security · Cybersecurity
IT Consulting elsewhere: New York City · New Jersey · Manhattan · Philadelphia · Brooklyn · Pittsburgh
Related services: Azure Cloud Migration · Virtual CIO (vCIO) · Microsoft 365 Migration · IT Due Diligence Services
IT Consulting in Long Island: FAQs
Do you charge by the hour?
No. Assessments carry a fixed price based on the size of the environment, projects are quoted from the inventory, and virtual CIO advisory is a monthly figure. Terms run month to month, and the scope of every engagement is written down before it starts.
Can you do IT due diligence on a company we are buying?
Yes. We inventory the target's accounts, licenses, contracts, backups and security posture, and report the three risks that need a price before closing. Findings are in writing and the review is scoped to the transaction timetable.
What does an IT consulting engagement in Long Island look like?
It starts with discovery of every system, account, vendor and risk, produces a written assessment and roadmap with costs, and then either ends there or continues into the projects the roadmap calls for and a quarterly virtual CIO review. You get findings in writing at every stage, and the engineer who did the assessment runs the projects.
Do you have an office in Long Island?
Our office is at 1 Prospect Park SW, Suite 6E, Brooklyn, NY 11215, and Nassau County is 45 to 60 minutes from Park Slope by car and western Suffolk 60 to 90, so on-site visits to Garden City, Melville or Hauppauge are scheduled work rather than a special trip. Engineers come to you for anything the help desk cannot fix remotely, and monitoring runs around the clock from Brooklyn. Every agreement is month to month.
Does the NY SHIELD Act apply to a small business?
Yes. It applies to any business holding private information on a New York resident, with no employee-count threshold. Small businesses get a scaled standard, meaning safeguards appropriate to their size, but not an exemption, and the breach-notification duty under § 899-aa applies to everyone.
Bring the decision you are stuck on.
A cloud move, a merger, a compliance deadline, a system nobody trusts. Tell us what you run and what has to change, and an engineer comes back with an assessment, options with real numbers and the order to do them in.