Co-managed IT · Chicago metro
Keep your IT team. Add the bench behind them.
Co-managed IT for Chicago businesses with an in-house IT lead. EFROS slots in behind your team as the 24/7 SOC, managed detection and response, email/BEC defense, vCISO, and incident-response bench — under one accountable SLA. Your team keeps control; you gain depth.
Serving Cook, DuPage, Lake, Will, and the collar counties since 2009. Remote-first, on-site when it needs hands.
When it fits
You don't need to replace your IT person
Co-managed IT is the right call when the gap is coverage and security depth, not competence. Four situations where it fits.
Your one IT person is the single point of failure
They keep the lights on, but there's no coverage when they're on vacation, out sick, or asleep at 2 AM when ransomware hits. Co-managed IT gives your lead a 24/7 bench behind them without you hiring a second and third engineer.
You have IT, but no security team
Running Microsoft 365, patching, and the help desk is a full-time job. Threat hunting, EDR tuning, email authentication, and incident response is a different discipline. EFROS slots in as the security layer so your internal team isn't asked to be two teams.
Cyber insurance or a customer is asking for controls you can't staff
24/7 monitoring, EDR, tested backups, a documented IR plan, phishing-resistant MFA — carriers and enterprise customers now require them. EFROS operates those controls so your team can answer the questionnaire honestly instead of scrambling.
Projects keep stalling behind day-to-day tickets
Your team is buried in break-fix, so the migration, the Zero Trust rollout, and the segmentation project never ship. EFROS takes the security operations load off their plate so the roadmap actually moves.
What we add
The security layer, behind your team
Your lead keeps the environment. EFROS adds the coverage and the discipline that's hard to staff for one or two people.
24/7 SOC + MDR
The night shift your team doesn't have
24/7/365 Security Operations Center with SIEM-driven detection, managed detection and response, and pre-authorized containment. Your IT lead owns the environment; EFROS watches it around the clock and escalates to them with context, not noise.
Email / BEC + identity
Close the inbox and login gaps
DMARC/SPF/DKIM enforcement, anti-impersonation, Conditional Access, and phishing-resistant MFA — the controls that stop the attacks that actually cost Chicago SMBs money, monitored continuously so nothing silently drifts out of policy.
vCISO + escalation bench
Senior help, on call
Fractional security leadership for strategy, cyber-insurance renewals, and board/customer reporting, plus a senior incident-response bench your internal lead can escalate to. You keep control; you gain depth.
Building blocks: SOC as a Service, MDR, vCISO, and Microsoft 365 security.
Why teams trust EFROS
The proof, on one line each
Operational since 2009
24/7/365 SOC + MDR behind your team
Guaranteed 4-hour IR response SLA (contractual)
You keep admin control — EFROS is co-pilot, not replacement
Email / BEC defense (DMARC enforcement)
vCISO & cyber-insurance readiness
SOC 2-aligned · ISO 27001-aligned
Controls mapped to NIST CSF 2.0
EFROS operates SOC 2-aligned and ISO 27001-aligned with controls mapped to NIST CSF 2.0. EFROS provides readiness and aligned controls; it is not a certification body.
Questions
Co-managed IT in Chicago — frequently asked
What is co-managed IT, and how is it different from fully outsourced IT?
Co-managed IT means your in-house IT person or team keeps running day-to-day IT and keeps admin control, while EFROS works alongside them to add capacity and specialized security. It's a division of labor, not a takeover. Fully outsourced (fully managed) means EFROS runs the whole IT function. Most Chicago businesses with one or two IT staff choose co-managed so they gain a 24/7 SOC and senior bench without losing their internal knowledge.
We have an internal IT person but no security team. Can EFROS just be the security layer in Chicago?
Yes — that is the most common co-managed engagement. Your IT lead keeps the help desk, patching, and Microsoft 365 admin; EFROS sits behind them as the 24/7 SOC, MDR, email/BEC defense, vCISO, and incident-response bench. Your team retains control and context while gaining enterprise security tooling and senior analysts without three new full-time hires. Delivered remotely across the Chicago metro and Chicagoland, with on-site dispatch when needed.
Will EFROS step on our IT person's toes or take over their access?
No. Co-managed is designed around your team keeping ownership. We agree on a clear RACI up front — who owns what, what EFROS monitors, and when we escalate versus act under pre-authorization. Your internal lead stays the admin of record; EFROS adds the coverage and the second set of senior eyes they don't have today.
Does EFROS have a Chicago office, or is co-managed IT delivered remotely?
EFROS is a service-area business for the Chicago region: the SOC, MDR, and most co-managed work are delivered remotely by design, with on-site dispatch across Cook, DuPage, Lake, Will, and Kane counties when a task needs physical hands. You get continuous, enterprise-grade coverage without paying for a local storefront.
Can co-managed IT help us pass a cyber-insurance renewal or customer security questionnaire?
Yes. EFROS operates the controls carriers and enterprise customers now require — MFA, EDR, 24/7 monitoring, email authentication, tested backups, and a documented incident-response plan — SOC 2-aligned and ISO 27001-aligned with controls mapped to NIST CSF 2.0, and produces audit-ready reporting your team can submit. To be precise: EFROS provides readiness and aligned controls and is not a certification body.
Co-managed IT · Chicago
Tell us what your IT team is missing.
Send us your size, your stack, and where your internal IT lead is stretched — night coverage, security tooling, a cyber-insurance renewal, or a project that keeps stalling. A senior engineer responds within one business day.
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