IT Consulting Long Island: Assessments and Projects for Nassau and Suffolk Firms
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.
The short answer
NetSys provides IT consulting 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. Assessments and projects have agreed milestones, change windows, acceptance checks and a handover. Work is coordinated from Brooklyn, with on-site visits scoped and scheduled in advance. Implementation can lead to a separate ongoing management agreement; a consulting project does not automatically include a staffed help desk.
Service information by The NetSys Group. Our editorial standards.
How IT consulting is delivered in Long Island
Our office is at 1 Prospect Park SW in Brooklyn. Engineers schedule visits for work that needs hands, with access and travel agreed for your address. Assessment, design and integration work is coordinated from Brooklyn, with meetings and change windows stated in Eastern time. The project has agreed milestones, acceptance checks and a handover. Ongoing monitoring and help desk require a separately defined managed scope. Confirm landlord access, circuit diversity, cabling and equipment space before approving a network change. Carrier options to check in Long Island include Optimum Business, Verizon Fios and Lightpath; availability, routing and installation dates must be verified at your address before a failover design is approved.
Who IT consulting in Long Island is built for
Businesses we can support in and around Garden City, Melville, Hauppauge, Great Neck and Mineola include 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. These are examples of business and application needs, not a list of local clients. We coordinate infrastructure, identity and integration with the application vendor, and identify any compliance requirements during discovery. Companies with an internal IT person can agree a split of responsibilities, systems and coverage hours before work begins.
Continuity planning for your Long Island business
Start with the systems your team cannot work without. Record the impact of a building power outage, a failed internet circuit, a compromised account and an unavailable application vendor. Then agree recovery priorities, an independent access path, protected backup copies and a test for each critical workflow. Controls reduce particular risks; they do not guarantee that an incident cannot happen.
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 practice in Garden City
This planning example shows how we could scope the work. It is not a claim about a customer in this market or a measured result. For published customer work, see our case studies.
A 68-person medical practice in Garden City is facing a decision: a separate file server is seven years old, athenahealth needs an access and integration review, and leadership needs to compare a hardware refresh with moving the file workload to the cloud. 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.
IT consulting work for other clients
- Architecture and engineering
Civil engineering firm
Migration of 3 TB of project data to Azure, secure access for 55 employees, and cloud backup configuration.
Azure Cloud MigrationIT for Architecture and Engineering Firms
- Insurance
Insurance brokerage relocating its headquarters
Deployment of 40 workstations, installation of 60 network drops, firewall setup, and office Wi-Fi configuration.
Office Relocation IT ServicesIT for Insurance Agencies and Brokers
- Real estate
Commercial property management company
SharePoint migration of 800 GB of leases, vendor records, and property documents, with separate access permissions for 12 property teams.
SharePoint & OneDrive MigrationIT for Real Estate and Property Management
Client names are withheld. These examples were chosen for the work involved, not for where the client is, so none is presented as a Long Island client.
Compliance in Long Island: the SHIELD Act and what sits on top of it
The New York SHIELD Act (General Business Law § 899-bb) requires reasonable administrative, technical and physical safeguards for covered private information. The small-business standard considers the size and complexity of the business and the sensitivity of the information; it is not a general small-business exemption. The service scope should identify the records, access controls, retention settings and incident evidence your business needs; your legal or compliance adviser determines which requirements apply. Consulting engagements map each requirement to a control, an owner and the evidence an auditor or insurer will ask for, before anything is bought. Discovery identifies missing records and assigns the documentation work. Applicable duties depend on the business, data, exemptions and contracts; your legal or compliance adviser determines which requirements apply.
Primary sources
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 plans and pricing · IT Support · Network Security · Cybersecurity
Industry pages for Long Island: IT Support for Law Firms on Long Island · IT Support for Medical Practices on Long Island · IT Support for Dental Practices on Long Island · IT Support for Accounting Firms on Long Island · IT Support for Construction Companies on Long Island
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. On-site work is scheduled for your address, access requirements and support scope. Assessment, design and integration work is coordinated from Brooklyn, with meetings and change windows stated in Eastern time. The project has agreed milestones, acceptance checks and a handover. Ongoing monitoring and help desk require a separately defined managed scope. Ongoing agreements are month to month.
How can IT support help with New York data-security requirements?
The New York SHIELD Act (General Business Law § 899-bb) requires reasonable administrative, technical and physical safeguards for covered private information. The small-business standard considers the size and complexity of the business and the sensitivity of the information; it is not a general small-business exemption. NetSys can help document the relevant systems, controls and incident evidence within an agreed scope; legal notification decisions remain with your authorized business and legal team.
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.