Construction
Construction

Keeping Projects Secure From Bid Day to Closeout

A construction company runs on a steady flow of drawings, bids, schedules, pay applications, and payroll moving between the office, the trailer, and dozens of outside partners. Every one of those handoffs is a place where money can be redirected or a project can be stopped cold.

Centaris supports general contractors, specialty and trade contractors, and heavy civil and site work firms across Michigan and the surrounding Great Lakes states. We secure the systems your projects depend on, connect and protect your jobsites, and give your field and office teams technology that holds up under actual working conditions.

Your business changes shape with every new project, crew, and subcontractor. Your security has to change shape with it, and we make sure it does.

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A construction superintendent checking a tablet on an active commercial jobsite at sunrise
The Risks

The Risks Building Up on Today's Jobsites

Contractors face a combination of financial fraud, ransomware, and constant workforce change that few other industries experience all at once.

More than half of organizations received emails from domains that were nearly identical to legitimate ones, differing by only a letter or two.

(Source: AFP 2026 Payments Fraud and Control Survey Report)

Pay applications, subcontractor invoices, retainage releases, and vendor bank-change requests all travel by email. A lookalike domain or a hijacked subcontractor mailbox is often all it takes to reroute a six-figure payment.

When estimating, scheduling, project management, and accounting systems go down, submittals stall, payroll slips, and bid deadlines pass. Attackers know contractors cannot afford to sit idle, and they price their demands accordingly.

Trailers get pop-up internet connections, shared tablets, cameras, and gate systems that are rarely secured to office standards. When the project closes out, those devices and accounts often stay active long after anyone remembers them.

New hires, seasonal workers, and subcontractor staff need access fast, and they leave just as fast. Every account that is never disabled becomes a door someone else can walk through.

Hospital systems, data center developers, public agencies, and defense projects increasingly require security questionnaires, insurance minimums, and, in some cases, CMMC. A contractor who cannot show its controls can lose the bid before price is even discussed.

The contractors who handle this well treat IT the way they treat safety: planned, standardized, and checked on every site.

Our Solutions

What Centaris Brings to Your Projects

S-01

Protect draws, invoices, and vendor payments

Money moves through your business on predictable cycles, and attackers study those cycles. These controls make redirecting it far harder:

  • MFA on every mailbox, including project managers, estimators, and accounts payable
  • Lookalike-domain detection and email authentication on every domain you use
  • Alerts for mailbox forwarding rules and suspicious sign-ins from unfamiliar locations
  • A documented callback procedure for any change to vendor or subcontractor banking details
  • Phishing simulations built around pay applications, change orders, and lien waivers
  • Managed EDR on every laptop, workstation, and field device

A bank-change request arrives

S-02

Keep project systems running when attackers strike

Centaris backs up project files, estimating data, and accounting systems in copies ransomware cannot alter, and we test restores before you ever need one. If an attack gets through, the goal is to have your teams back in their project files within hours, not scrambling to reconstruct them.

S-03

Connect and secure every jobsite

We standardize how trailers and temporary offices come online, with secured connectivity, managed firewalls, and segmented networks that keep cameras and site equipment apart from project data. When the job closes, the equipment and accounts are retired on schedule.

A project manager and foreman reviewing drawings inside a jobsite trailer office
S-04

Extend protection to video and access control

Jobsite cameras and gate or door access systems are security tools, and they are also connected devices that need protecting. Centaris deploys and manages video security and access control alongside your IT environment, so physical and digital security are covered by the same team.

S-05

Onboard and offboard at the speed of your workforce

Through Microsoft Intune and standardized account setup, a new superintendent or project engineer can be productive on day one with a secured device. When someone leaves, their access to email, files, and project platforms is shut off the same day.

An IT technician handing a tablet and laptop to a new project engineer
S-06

Share drawings and documents safely with every partner

Owners, architects, engineers, and subcontractors all need access to project documents. We configure Microsoft 365 guest access and sharing controls so outside partners see only their projects, and their access expires when the work does.

S-07

Answer owner and insurer security requirements

When an owner sends a security questionnaire or your cyber insurance carrier asks about MFA, backups, and endpoint protection, you should be able to answer with confidence and documentation. For contractors pursuing defense work, we help prepare the environment and evidence CMMC requires. When a formal assessment is required, it is performed by an accredited third-party organization or the government, not by us.

S-08

Adopt AI tools with guardrails in place

AI can speed up estimating, document review, and reporting. Centaris prepares Microsoft 365 and Copilot so bid numbers, contracts, and owner data stay inside the right permissions, and we train your people on what should never be pasted into a public AI tool.

S-09

Get IT support that shows up at the trailer

Centaris can run your entire IT operation or support an in-house IT lead who is stretched across too many sites. Our engineers are based across the region and can be onsite at your office or jobsite when a remote fix will not do.

Our Approach

A Security Program That Moves at Project Speed

Contractors rarely have one fixed environment. Your offices stay put, but your jobsites, partners, and crews change every season. Centaris builds a program that adapts with them:

  1. Inventory offices, jobsites, devices, project platforms, payment workflows, and the security requirements written into your current contracts and insurance policies.

  2. Compare what you have against what owners, insurers, and attackers will test, and rank the gaps by how much money or schedule each one puts at risk.

  3. Fix the highest-risk issues first, timed around bid deadlines, pay cycles, and active project milestones.

  4. Turn the fixes into repeatable playbooks for new jobsites, new hires, and payment changes, so every project starts securely.

  5. Monitor continuously, review controls each season, and retire project devices and accounts at closeout.

The result is security that travels with your projects, from the first trailer to the final walkthrough.

An estimator at a contractor's main office working across two large monitors
Our Differentiators

Why Contractors Work With Centaris

A few things matter more in construction than almost anywhere else:

  1. We treat the office and the field as one business.

    Accounting, estimating, project management, and jobsite technology all connect. We design security around the full picture, not just the office door.

  2. We show up where the work is.

    Some problems need someone on site. Our engineers go to the trailer, the yard, or the office, whichever is where the issue lives.

  3. We build security your crews will actually use.

    Controls that slow down a superintendent get worked around. We favor practical, low-friction protections that fit how field teams operate.

  4. When something breaks, the people fixing it already know your systems.

    Centaris's own security team handles monitoring and response, so there is no handoff to an outside party that has never seen your environment.

  5. We handle the technology, and we tell you where it ends.

    We are not your surety, your attorney, or your CMMC assessor. We build and run the security program those parties will review, and we work alongside them when a project requires it.

Industry Impacts

Industry Impacts

Impact 01
1761

ransomware incidents hit construction organizations in a single quarter, according to Dragos' tracking for Q2 2026. Attackers target contractors because downtime is expensive and deadlines are fixed. Tested backups and fast recovery take away much of that leverage.

Impact 02
74%2

of organizations experienced business email compromise in 2025, up from 63% a year earlier. For contractors, that usually means a fake bank-change request on a subcontractor or supplier payment. A callback rule and MFA on every mailbox stop most of these before money moves.

Impact 03
48%3

of construction firms report new hires who fail to show up or quit quickly. Every one of those hires still needs an account, a device, and project access, and each has to be removed just as reliably. Standardized onboarding and offboarding keep the churn from becoming a security gap.

1Dragos Industrial Ransomware Analysis, Q2 2026; 2AFP 2026 Payments Fraud and Control Survey Report; 3AGC and NCCER 2025 Workforce Survey.
Peace of Mind

When Your Last Provider Never Left the Office

Contractors often come to us with a similar history. The previous IT provider handled the main office well enough but treated jobsites as someone else's problem. Trailer networks were set up by whoever was available. A former employee's account stayed active for months. A fraudulent payment went out, and the answer was more training instead of better controls.

Centaris covers the whole operation, office and field, with one accountable team that understands how construction companies actually work.

Get Started

Get a Clear Read on Your Risk Before the Next Project Starts

A no-obligation assessment shows your leadership where payments, project data, and jobsites are most exposed, and what it would take to fix them without slowing work down.

Plain answers, a realistic plan, and the decision stays with you.

Schedule a Construction Security Assessment