Long Island IT support for Suffolk County businesses, delivered by a US-based team.

MJN Technology Services is a Long Island IT company based in Wantagh, supporting businesses throughout Suffolk County including Melville, Huntington and Deer Park. Our founder has worked in Long Island IT since 1999.
Suffolk is large, and that is exactly why a remote-first model serves you better. Your response time is not governed by how far a van has to travel down the Expressway, and there is no travel surcharge folded into your monthly rate. When something genuinely needs hands on hardware, we handle that too.
Suffolk has a broader industrial base than Nassau. Alongside the professional firms clustered around Melville and Huntington, there are manufacturers, distributors, contractors and engineering practices, often running specialist software and equipment that a generalist provider has never seen before. We take the time to understand what actually runs your business before we propose changing anything.
Most providers in this market self-assess their own security. We submitted to an accredited third-party assessor against 177 controls under the GTIA Cybersecurity Trustmark program, and GTIA's review board confirmed the result.
If a line stops or a job site loses connectivity, the cost is measured in hours of production, not inconvenience. We build for uptime first and design around the equipment you already run.
Day-to-day support is covered by one flat monthly rate. Hourly billing punishes you for having problems and teaches your staff to stop reporting them, which is how small issues quietly become expensive ones.
The five things every Suffolk County client gets, from a Melville office to a Deer Park warehouse.

Unlimited, flat rate, answered by people who know your setup.
Your staff can call as often as they need without anyone counting. That is deliberate. The moment support becomes something people hesitate to use, they start working around problems instead of reporting them, and the workaround is almost always less secure than the fix would have been.
Underneath the help desk sits 24/7 monitoring of your servers, workstations and network devices, plus patching on a daily schedule. For businesses running multiple Suffolk locations or a warehouse alongside an office, that monitoring is what stops a problem at one site becoming a problem everywhere.
Attackers do not skip you for being mid-sized.
Manufacturers and distributors are targeted precisely because downtime is so expensive. If a ransomware crew can stop your production or your shipping, the pressure to pay is immediate and they know it. Contractors and engineering firms get hit through a different door, usually a compromised email thread in the middle of a live project with money moving through it.
Our stack is Zero-Trust architecture, 24/7 managed detection and response, multifactor authentication, automated endpoint remediation and security awareness training for your people. For the regulated firms clustered around Melville and Huntington we also handle the documentation, because being secure and proving you were secure are two different problems and only one of them surfaces at audit or insurance renewal.


Verified every day, with proof.
Almost every business that has lost data had backups running. What they lacked was evidence those backups would restore. We use screenshot verification, which boots each protected system from its backup and captures a dated image of it running, so the proof exists before you need it rather than after.
Copies are held offsite where an attacker on your network cannot reach or overwrite them, and Microsoft 365 or Google Workspace data is backed up separately from the platform. For operations where downtime has an hourly cost, we agree recovery targets with you up front and test against them, so the number you plan around came from your own environment rather than a brochure.
Including the parts that cannot move to the cloud.
Most Microsoft 365 tenants we inherit were configured once to get email working and never revisited: administrators without multifactor authentication, sharing links that never expire, audit logging off, no backup beyond Microsoft's own retention. We harden identity and access, then set up Teams and SharePoint with enough structure that nobody has to ask which copy of a document is current.
Suffolk businesses more often have equipment that has to stay put. Machine controllers, design workstations moving large CAD and BIM files, warehouse systems that cannot tolerate latency. We are straightforward about which of those should stay on-premise and build reliable networking and secure remote access around them instead of forcing everything into the cloud.


Start with the work, not the software.
Most businesses approach AI from the wrong end, starting with a tool somebody read about and hunting for a use. We start with where your team's week actually goes. In Suffolk that is often quoting, scheduling, retyping details from emailed purchase orders, or rebuilding the same report by hand every month.
Then we automate the safe, boring, high-volume parts one at a time, keep a human checkpoint anywhere a mistake would be expensive, set up AI accounts your business controls so company data does not leak into consumer tools, and train your staff on where these systems are confidently wrong. Some of what you do should not be automated, and we will say so.
What business owners here ask before they change IT providers.
All of Suffolk County. Our clients include businesses in Melville, Huntington and Deer Park, and we cover Nassau County as well from our base in Wantagh. Because the work is delivered remotely by our US-based team, how far east you sit does not change your response time or your rate.
No, and this is worth understanding when comparing providers. The overwhelming majority of IT work is resolved remotely and instantly, so distance is irrelevant to it. A provider two towns away still cannot fix your server faster than we can if they are dispatching a van, and their travel time is usually priced into what you pay. Ours is not.
We support the environment your specialist software runs on: the servers, network, backups, security and access that keep it available, plus coordinating with your software vendor when the application itself needs them. We will not claim deep expertise in every niche package on Long Island. What we will do is tell you honestly at the outset which parts we own and which stay with your vendor, so nothing falls between the two of us.
Because someone independent checked. MJN completed the GTIA Cybersecurity Trustmark assessment in May 2025, examined against 177 security controls by an accredited third-party assessor and confirmed by GTIA's review board. Most providers in this market self-assess and describe themselves as compliant, which is a different claim entirely. Ask any provider you are considering who verified their security and when.
Yes. That arrangement is called co-managed IT, and it suits Suffolk operations well. Your internal person keeps user support and the knowledge of how your equipment and processes actually work, and we take the infrastructure and security layer underneath: 24/7 monitoring, patching at scale, security operations and compliance documentation. Nobody gets replaced.