Reducing the number of technology suppliers is one of the more reliable sources of savings available to an enterprise: better pricing at volume, less administrative overhead, fewer support relationships, simpler integration. It is usually the correct direction. The cases where it is not are worth identifying deliberately.
What consolidation genuinely delivers
Commercial leverage from concentrated volume. Reduced procurement and accounts payable overhead. Fewer support boundaries to argue across when something breaks between two products. Simpler training and fewer consoles. Better integration within a single vendor's portfolio.
These are real and they compound. For most organizations, the current supplier count is higher than anyone chose and reducing it is straightforwardly beneficial.
The three exceptions
Best-of-breed gaps. Broad portfolios are rarely uniformly strong. A vendor with excellent networking and adequate security is a poor choice for security if security is the constraint. Consolidating into a weak component to simplify the supplier list means paying for the weakness continuously.
Concentration risk. A single vendor across networking, security, compute and communications means a single point of commercial and technical dependency. If that vendor changes licensing terms, is acquired, or has a serious product problem, the exposure is total. In critical infrastructure that argues for deliberate diversity, particularly between the perimeter and the systems behind it.
Negotiating position. Consolidation improves pricing initially and erodes it afterwards. A supplier who knows replacement would be a multi-year programme negotiates differently at renewal than one who knows a competitor is already in the estate. Maintaining a credible alternative in at least one significant category preserves leverage that pure consolidation gives away.
A workable position
Consolidate aggressively on commodity — endpoints, peripherals, standard networking, licensing administration. There is little strategic value in supplier diversity for laptops.
Retain deliberate choice where the component is critical or where a specialist is materially better. Security is the most common example.
And keep the switching cost visible. Before extending a consolidated agreement, establish what replacing that vendor would actually cost and how long it would take. If nobody knows, the negotiating position is weaker than it appears — and knowing the number is useful whether or not you ever use it.