IT Services for Manufacturing Companies

What IT services for manufacturing companies cover

IT services for manufacturing companies span two very different networks. The office side looks like any business: email, ERP and MRP systems, CAD and engineering files, quoting, accounting and file storage. The plant side is operational technology (OT): PLCs, HMIs, CNC machines, robots, SCADA systems and the PCs that run them, many on old operating systems because the equipment vendor certified nothing newer.

Most IT providers know the office side well. Fewer have worked on a plant floor, where you cannot reboot a machine controller to apply a patch in the middle of a shift and a change can stop a line. Ask a provider for examples of plants it supports and who on its team has worked with OT.

Logistics and distribution companies sit in between. Their critical systems are warehouse management, transportation management, handheld scanners, label printers and links to carriers and customers. A scanner network outage stops shipping as surely as a broken machine stops production, so the same uptime and separation thinking applies.

Separating OT from IT

Separating plant equipment from the office network is the most important security step a manufacturer can take, because most attacks start in email or on an office PC and spread from there. NIST's guide to OT security, SP 800-82 Revision 3, covers how to secure these systems while respecting their performance, reliability and safety needs ⁷.

In practice, separation means:

• A firewall between the office and plant networks that allows only the specific traffic production needs, such as a historian or MES feed.
• No email or web browsing on machine PCs.
• Vendor remote access to equipment through one controlled path with MFA, turned on only when needed.
• An up-to-date list of every connected device on the plant floor, with its software version.
• Backups of PLC programs, machine configurations and HMI projects, stored off the plant network.

Older machine PCs often cannot be patched. Microsoft ended Windows 10 support on October 14, 2025, and commercial Extended Security Updates cost $61 per device for the first year, doubling each year for up to three years ⁸. Where updates are not possible, isolation is the fallback: put the machine on its own segment and block what it does not need.

Cybersecurity for manufacturers: ransomware and downtime

Ransomware is the main threat to manufacturers because downtime is so costly. Sophos's 2026 survey, covering organizations with 100 to 5,000 employees, found an average recovery cost of $1.7 million per attack and a median ransom payment of $769,000 ⁵¹³. Among US respondents, the average recovery cost was $2.51 million ⁶. The 2026 Verizon DBIR found ransomware in 48% of all breaches ⁴, and the FBI's 2025 report names critical manufacturing among the sectors most affected by the top ransomware variants it tracked ¹⁰.

Recovery time is the number to plan for. In Sophos's 2026 data, 55% of organizations fully recovered within a week, and 16% in less than a day ⁵. Work out what a week without production, shipping or invoicing would cost your plant; that figure, not a national average, should drive how much you spend on prevention and backup.

The controls that shorten an outage:

• Backups that are offline or immutable, so ransomware cannot encrypt them, and restore tests at least twice a year.
• Backups of plant configurations, not just office files.
• MFA on email, remote access and all admin accounts.
• Endpoint detection and response on office PCs and servers, watched around the clock.

Our backup and disaster recovery guide explains recovery targets and pricing. For 24/7 monitoring, see managed detection and response. If an attack is happening now, call your cyber insurer's hotline if you have a policy, report to the FBI at ic3.gov, and do not wipe or rebuild systems before evidence is preserved. Our incident response guide covers the next steps.

Defense suppliers: DFARS, NIST 800-171 and CMMC

Machine shops and parts makers that supply the Department of Defense have contract obligations that go beyond good practice. DFARS 252.204-7012 requires contractors to implement NIST SP 800-171 on systems that hold covered defense information, report cyber incidents to DoD within 72 hours of discovery, and keep images of affected systems for at least 90 days ¹. CMMC, the program that verifies this, has three levels ².

• Level 1 covers Federal Contract Information and requires an annual self-assessment and affirmation against 15 FAR requirements ².
• Level 2 covers Controlled Unclassified Information, such as many technical drawings and specifications, and maps to the 110 requirements of NIST SP 800-171 Revision 2 ²³.

The schedule changed in 2026. On July 13, 2026, DoD suspended Phase 2, which would have required third-party (C3PAO) certification for many Level 2 contracts starting November 10, 2026; DoD CIO says implementation is paused in Phase 1 and no new date has been announced ². Self-assessments remain in place, and DoD says it will enforce NIST SP 800-171 Rev 2 during the pause ². The schedule may change again, so check before planning around it.

The practical work is the same either way: a system security plan, an accurate SPRS score, and a plan to close gaps. Start with our CMMC overview, then the NIST 800-171 guide and CMMC Level 2 requirements. Confirm your own obligations with counsel or an assessor.

ITAR data and cloud choices

Manufacturers that handle export-controlled technical data under ITAR have an extra constraint on where that data can live and who can reach it. Microsoft offers its GCC High environment for contractors handling DoD CUI or ITAR data ¹⁴, and says it will agree to ITAR contract language only for GCC High, not for standard GCC ⁹.

GCC High is not a quick switch. Microsoft validates eligibility before setting up an environment and requires revalidation at renewal ¹⁴⁹. Many smaller shops keep CUI and ITAR data in a separate, smaller environment, often called an enclave, so the rest of the company stays on standard tools. Our GCC High guide compares the options. Whether ITAR applies to your parts is a legal question; confirm it with export counsel.

Choosing a provider and budgeting

Choose a provider that can show plant-floor experience and, if you do defense work, a clear answer on how it supports a system security plan. Providers' published pricing guides list fully managed IT at $100 to $250 per user per month ¹², and fully managed plans that include security can reach $300 or more ¹¹. Defense compliance work is usually scoped and priced separately; our CMMC compliance services page explains how those engagements are structured, and the managed IT pricing guide covers day-to-day support.

Questions to ask:

• Which plants have you supported, and how do you schedule changes around production?
• How will you separate our OT and office networks, and who approves firewall rules?
• Will you document your role in our system security plan, with a responsibility matrix?
• What do restore tests look like, and how often do you run them?

General contract questions are in our guide on how to choose an MSP, and managed security services covers round-the-clock monitoring. Engineering and design firms on the same defense programs face the same rules; see IT for architecture and engineering firms.