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NelnationaleConsulting

Industrial & OT Technology

Vendor & Contractor Governance

Third-party access control, change management and supply-chain assurance for plant equipment.

Overview

Original equipment manufacturers need access to maintain their kit, and they usually get it through arrangements nobody documented and nobody reviews.

We formalise it: scoped, time-bound, logged access, with contractual security requirements that mean something at procurement rather than after an incident.

What is included

  • Vendor access inventory and risk rating
  • Scoped, time-bound remote access provisioning
  • Session logging and review
  • Change management for vendor-initiated work
  • Security requirements written into procurement
  • Supply-chain assurance for new equipment
  • Vendor offboarding process
  • Periodic vendor access attestation

How we run it

  1. 01

    Scope

    Inventory every vendor with access today and rate the risk each represents.

  2. 02

    Build

    Design scoped access, logging and the change process for vendor work.

  3. 03

    Launch

    Migrate vendors onto the new process and retire the informal routes.

  4. 04

    Measure

    Run attestation reviews and embed requirements into procurement.

Questions

Before you enquire

Vendors say this slows maintenance. Does it?
Slightly at first, then not at all once provisioning is routine. The alternative is an undocumented path into your control network.
What if a vendor refuses?
That is useful information at procurement. Most comply when the requirement is contractual rather than requested.
Does this cover equipment supply chain?
Yes, including assurance checks on new equipment before it reaches the plant floor.

Often bought together

Industrial Identity & Access

Machine and human identity, certificate lifecycle and least-privilege access for controls engineers and vendors.

OT/IT Convergence Architecture

Purdue-model zoning, DMZ design, segmentation and secure remote access for live plant networks.

ICS & SCADA Security Assessment

Passive asset discovery, vulnerability triage and a ranked, costed remediation roadmap.

Next step

Need vendor & contractor governance?

Tell us what you are trying to achieve and by when. We will come back with scope, price and an honest view on fit.

Book a consultation