Your Suppliers Know More About Your Business Than You Do

This is not a provocative claim. It is a description of how information flows in a multi-brand supplier relationship.

When your conglomerate’s brands independently issue purchase orders to a shared supplier, the supplier’s ERP accumulates those transactions in a single customer record — or across customer records that the supplier’s account management team maintains collectively. Over time, the supplier builds a complete picture of your combined spend, your demand patterns, your production schedules, and your negotiating behavior.

You have a fragmented picture of the same transactions, distributed across your brands’ independent systems.

What the supplier can see

Your total spend. Not Brand A’s spend with them. Not Brand B’s spend. The combined number, across every entity in your corporate family that purchases from them.

Your spend trajectory. Whether your combined volume is growing, shrinking, or stable over a multi-year period. This is more informative than any single year’s purchase order volume.

Your concentration. What percentage of your spend on a given component class goes to them versus their competitors. A supplier who has captured 70% of your battery cell spend knows you are meaningfully dependent on them. They also know whether you are diversifying.

Your price sensitivity by brand. As discussed in the previous post: which brands push on price and which do not. This is operationally useful for the supplier’s pricing strategy.

Your supply chain vulnerabilities. If Brand C consistently places last-minute orders at premium prices in Q3, the supplier knows you have a Q3 inventory management problem. That is leverage.

Your new product signals. Changes in component mix, new part numbers, new specifications — these appear in purchase orders before they appear in any public announcement. A supplier tracking your order history knows what you are developing.

How suppliers use it

Sophisticated suppliers use this intelligence defensively and offensively.

Defensively: to identify your switching risk. If your order pattern suggests you are testing an alternative supplier — smaller volumes, new part numbers that don’t fit their catalog, requests for samples — they can intervene before you complete the switch.

Offensively: to time price increases. Suppliers know when you are in a production ramp and cannot absorb a supply disruption. They also know when your contracts expire. A supplier who knows your contract ends in February and your peak production season starts in March has negotiating leverage that your buyer may not fully appreciate.

For competitive intelligence: if your supplier also sells to your competitors, they have visibility into both sides. They will not share this directly — that would be a breach of confidentiality. But they use the aggregated picture to understand market dynamics, and that understanding informs how they interact with everyone.

What you can do about it

There is no remedy that eliminates this asymmetry. Suppliers will always accumulate transaction data from the orders you place with them.

But you can close the internal gap — the part of the asymmetry that exists because your own brands cannot see each other’s spend.

When the conglomerate has cross-brand visibility into spend with a shared supplier, the CPO walks into that negotiation with the same aggregated number the supplier is using. Not an estimate. The actual number, with the same level of granularity the supplier’s account team is working from.

This changes the dynamic. Not dramatically — the supplier’s other informational advantages persist. But it removes the most consequential gap: the one where the buyer does not know their own spend with the counterparty sitting across the table.

Getting that visibility requires data work that most conglomerates have not done. Entity resolution across vendor masters. Spend aggregation across ERP instances. A shared taxonomy that makes Brand A’s purchase orders comparable to Brand B’s.

It is not complicated work. It is unglamorous, time-consuming, and politically difficult because it requires brands to share data they have historically kept separate.

But the supplier is already doing it. The question is whether you are going to let them keep that advantage.