What is MRO procurement?
MRO procurement covers everything a business buys to keep the lights on and the line running — but not the finished product itself. Think lubricants, bearings, fasteners, PPE, cleaning supplies, small tools, electrical consumables, filters, hoses, adhesives, workshop kit and replacement spares.
It's classic indirect spend: low value per line, high frequency, spread across dozens or hundreds of suppliers. Individually each order is trivial. In aggregate it's often 15–40% of a manufacturing or engineering SME's non-payroll spend, and the majority of PO volume.
Why MRO is where SMEs lose money
- Tail spend sprawl. 80% of MRO suppliers typically account for under 20% of spend — but 100% of the admin.
- Maverick buying. Line managers order urgently from whoever answers the phone, at list price.
- Duplicate suppliers. Three sites, three accounts with the same distributor, three different price files.
- Invoice overhead. Every supplier means a new account, a new invoice, a new payment run.
- No leverage. Spend split 200 ways gets 200 walk-in prices.
The consolidation play
The standard fix at enterprise scale is a full MRO integrator programme with a category team, a punch-out catalogue and quarterly business reviews. Most UK SMEs can't justify that overhead — and don't need to.
The lightweight version is a single outsourced point of contact handling the tail on your behalf. You keep your strategic suppliers where they matter; everything low-value and high-frequency routes through one partner.
- Map the tail. Pull 12 months of AP data, sort by supplier spend descending. Everything below your top 20 is a consolidation candidate.
- Categorise. Group by function — PPE, workshop consumables, electrical, cleaning, small tools, lubricants, spares.
- Set a single channel. Route new MRO requests to one inbox or one number.
- Consolidate invoicing. One statement per month covering everything sourced, regardless of underlying supplier.
- Measure quarterly. Track supplier count, PO count, tail spend %, admin hours recovered.
RS, Amazon Business, or an outsourced partner?
The obvious alternatives are broad-line MRO distributors. Each solves part of the problem — none solve all of it for a UK SME.
- RS Components / Cromwell / Zoro. Excellent catalogue depth. But you're still buying at published trade prices, and anything they don't stock — plant hire, sub-contract work, specialist spares — falls back on you.
- Amazon Business. Fast for commodity items. Weak on technical specs, no negotiation, and every order still routes through your PO/AP system.
- Outsourced procurement partner. Sources across any UK supplier — distributor, manufacturer, plant hire firm, specialist — negotiates per order, and consolidates it all into one invoice. Better fit when your MRO list mixes catalogue items with the non-catalogue long tail.
In practice most SMEs end up with a hybrid: a catalogue distributor for fast-moving consumables, and an outsourced partner for everything else.
What "good" looks like after 12 months
- Active MRO supplier count down 40–70%
- Tail-spend PO volume down by half — same or lower spend
- One monthly invoice line for consolidated MRO, split by cost code
- Ops managers stop chasing quotes; procurement admin hours recovered
- Auditable price history on every line, ready to re-benchmark
How Northstar handles MRO for SMEs
You send the requirement — a shortage list, a photo of a broken part, a monthly consumables order, a plant hire request. We source across our UK supplier network, quote back fast, place the order and consolidate everything onto one invoice. No punch-out to configure, no minimum spend, no lock-in.
See how the process runs in our one-off procurement guide or explore the wider facilitation service.