KBS Corporate vs Sell Ltd — the £70k question, answered
KBS Corporate and Sell Ltd deliver the same sale mechanics through different economic models. KBS bundles analyst work, buyer database access and enquiry management into a retainer plus percentage fee. Sell Ltd unbundles all three into an AI-drafted stack with dashboard visibility. On owner-managed sales £500k–£8m, Sell Ltd wins on cost, control and information without loss of outcome.
By Chris at Sell LtdLast updated £5–15k retainer · 3–8% success · 12–24 month exclusivity
£0 retainer · optional flat success · no exclusivity
KBS Corporate is the traditional full-mandate mid-market broker model: in-house analysts, proprietary buyer database, standardised process, percentage-of-EV fee.
Sell Ltd is the unbundled AI-first alternative: AI-drafted IM, marketplace + trade-buyer outreach, dashboard-managed enquiry flow, optional flat fee.
KBS Corporate vs Sell Ltd — full comparison
Row by row. We call the winner honestly, even when it's not us.
| Axis | KBS Corporate | Sell Ltd | Winner |
|---|---|---|---|
| Retainer | £5,000 – £15,000 | £0 | Sell Ltd |
| Marketing charge | £1,000 – £3,000 | £0 | Sell Ltd |
| Success fee | 3% – 8% of EV | Flat / optional | Sell Ltd |
| Exclusivity | 12 – 24 months + tail | None | Sell Ltd |
| IM quality | Investment-bank format | AI-drafted, investment format | Tie |
| Buyer database | Proprietary, opaque to seller | Marketplace + outreach, transparent | Sell Ltd |
| Enquiry visibility | Broker-mediated shortlist | Full dashboard: opens, clicks, NDAs | Sell Ltd |
| Analyst depth on complex deals | Strong | AI + on-demand human | KBS Corporate |
| Time to close | 6 – 12 months | 6 – 12 months | Tie |
| Owner hours per week | 1 – 3 | 3 – 5 | KBS Corporate |
| Total on £2m EV (loaded) | £75k – £175k | £0 – £15k | Sell Ltd |
| Total on £5m EV (loaded) | £175k – £415k | £0 – £25k | Sell Ltd |
Deep dive per axis
The £70k question — what does the KBS fee actually buy?
On a £2m sale, KBS's fully-loaded fee is £75k–£175k. What does that pay for? (1) An analyst-drafted IM — replaceable by AI at 5% of the cost. (2) Access to a proprietary buyer database — replaceable by marketplace + trade search at 0% of the cost. (3) Broker-mediated enquiry management — replaceable by a dashboard at 0% of the cost. (4) Coordination of legal and tax advisers — you pay those advisers separately either way. (5) Emotional hand-holding — real but not worth £70k.
None of these is uniquely broker-shaped in 2026. Every one has an unbundled alternative that costs less and gives the seller more information.
Where KBS genuinely still earns its fee
Not every deal fits the modern stack. KBS earns its fee on: international auction processes with multiple currencies and jurisdictions; regulated businesses (FCA, energy, care groups) needing regulatory approval coordination; deals with complicated equity structures (multiple share classes, options schemes, EMI unwinds); processes where the seller genuinely can't spare 3–5 hours per week.
These profiles are rare — under 10% of UK owner-managed sales — but where they apply, a full-mandate broker's coordination work is real.
The information asymmetry that most matters
The biggest structural weakness of the broker model isn't cost — it's information. Under a KBS mandate, you never see the buyer list, the outreach cadence, or the raw response rate. You see a shortlist the broker curated. That's fine when the broker is aligned with you and honest; it's a serious problem when they're pushing to close any deal to earn the percentage.
Sell Ltd's dashboard removes that asymmetry entirely. You see everyone approached, everyone who opened, everyone who signed the NDA. Decision quality improves because information quality improves.
Hybrid: Sell Ltd + on-demand M&A adviser
For sellers who want senior human input but not a full mandate, the modern approach is Sell Ltd + on-demand M&A adviser (£300–£800/hour, priced per matter). On a £2m sale, 30–50 hours of senior time costs £15k–£40k. Still less than half the KBS fee, and you retain full control.
Who each is right for
£800k B2B services owner-manager, single trade buyer likely
Sell Ltd, decisively. KBS's fee has no matching value here.
£3m established SaaS with multiple credible buyers
Sell Ltd + on-demand M&A adviser wins on cost and information. KBS earns its fee only if the process needs full-time analyst attention.
£8m regulated business (FCA-authorised), UK + EU buyers
KBS earns its fee — regulatory + jurisdictional coordination is real work.
£2m manufacturing SME with complex asset base
Marginal. Sell Ltd + specialist accountant covers 80% of the work; KBS covers 100%. Model both.
Owner won't spend more than 1 hour per week
KBS is the honest choice — pay for the hand-holding you actually want.
Sell Ltd wins for 90% of owner-managed UK sales — KBS wins the rest
KBS Corporate vs Sell Ltd — FAQs
KBS Corporate or Sell Ltd — which should I choose?
For owner-managed UK businesses £500k–£8m EV without unusual complexity, Sell Ltd. KBS earns its fee on genuinely complex mid-market processes — international auction, regulatory approvals, multiple share classes. Under 10% of owner-managed sales meet that bar.
How much cheaper is Sell Ltd than KBS?
On a £2m sale, KBS's fully-loaded fee is £75k–£175k; Sell Ltd's is £0–£15k. Delta £60k–£160k. On a £5m sale, the delta widens to £150k–£350k.
Does Sell Ltd really replace what KBS does?
It replaces the four things KBS actually delivers: the IM (AI-drafted), the buyer database (marketplace + trade search), enquiry management (dashboard), and adviser coordination (on-demand). Emotional hand-holding is not replaced — that's a feature, not a bug.
Isn't a broker safer?
Safer against what? On any measurable outcome — deal completion rate, achieved multiple, time to close — controlled comparison shows equivalence or better for AI-first stacks on standard deals. 'Safer' usually means 'less work for me' — legitimate to want, but priced accordingly.
What if I'm not confident running the process?
Start with the free survey and see the AI IM output. If you don't feel confident after seeing that, take a broker mandate — you'll have already saved the drafting fee. This is a no-lock-in evaluation.
Does KBS take Sell Ltd users seriously?
Yes. Buyers and their advisers judge deals on IM content and process quality, not on who ran the sell-side. A well-drafted Sell Ltd IM presented by a competent owner-manager is indistinguishable from a broker-run process to the buyer's team.