KBS Corporate alternative — the £0-retainer route for UK owner-managers
The strongest KBS Corporate alternative for a UK owner-managed limited company is an unbundled stack: an AI-drafted IM, a real marketplace of qualified buyers, and on-demand legal + tax support. On a £2m sale it saves £70k–£150k versus KBS's £5–15k retainer plus 3–8% success fee, and it closes in the same six-to-twelve-month window.
By Chris at Sell LtdLast updated - £5,000–£15,000 non-refundable retainer paid before any buyer sees your business
- 3–8% success fee on enterprise value, sliding by deal size
- 12–24 month exclusivity + 6–12 month tail — you can't leave for a year even if nothing's happening
- Opaque marketing charges (£1k–£3k) tacked onto the retainer
- Buyer list is proprietary — you never see who was actually approached
- 'Boiler-room' sales pattern reported in public reviews when signing you up
- The IM — AI-drafted from your survey answers, editable, professionally formatted
- Buyer exposure — Sell Ltd marketplace + LinkedIn outreach + trade-buyer search
- Enquiry management — inbound qualified buyers land in your dashboard, not a broker inbox
- NDA + data-room — one-click NDA + secure document sharing
- Legal + tax — on-demand specialists, priced per instruction, not bundled
- £0 retainer, no exclusivity, optional flat success — you keep control
KBS Corporate vs Sell Ltd — cost & structure
| Line item | KBS Corporate | Sell Ltd | Note |
|---|---|---|---|
| Retainer / up-front | £5,000 – £15,000 | £0 | Non-refundable at KBS |
| Marketing fee | £1,000 – £3,000 | Included | Often 'optional' but pushed hard |
| Success fee | 3% – 8% of EV | Flat / optional | Sliding scale by size at KBS |
| Exclusivity | 12 – 24 months | None | Plus 6–12 month tail |
| Total on £2m EV | £75,000 – £175,000 | £0 – £15,000 | Delta £60k–£160k+ |
| Time to close | 6 – 12 months | 6 – 12 months | Same window |
The modern stack that replaces a KBS Corporate mandate
When is KBS Corporate still the right call?
Honest routing. Some sellers should stay with a full mandate.
For most owner-managed UK deals, KBS's fee is not defensible
KBS Corporate alternative — FAQs
What is the best KBS Corporate alternative?
For most UK owner-managers of £500k–£8m EBITDA businesses, an AI-drafted IM plus a modern marketplace plus an on-demand adviser costs 5–10× less than KBS's retainer + success fee model and closes in the same 6–12 month window. Sell Ltd is the closest single-vendor version of that stack.
Is KBS Corporate expensive?
Yes by any objective measure. Confirmed 2026 pricing: £5,000–£15,000 up-front retainer, 3–8% success fee on enterprise value, 12–24 month exclusivity. On a £2m sale you'll typically pay £75k–£175k total. Independent alternatives run £0 retainer with optional flat or capped success fees.
Can I sell my business without KBS Corporate?
Absolutely — thousands of UK businesses sell every year without a full-mandate broker. You need three things: a professional IM, exposure to qualified buyers, and light legal/tax support. All three now exist as unbundled products at a fraction of a broker retainer.
Is Sell Ltd cheaper than KBS?
Materially. Sell Ltd charges no up-front retainer, no percentage of enterprise value and no exclusivity. Sellers pay for listing + optional flat success fee. On a £2m deal the delta is £70k+.
Does 'no upfront' mean 'no fee at all'?
No. Every route to sale has cost. The honest choice is between (a) big retainer + big success fee + long exclusivity, or (b) low/no retainer + flat or capped fee + no lock-in. KBS is (a). Sell Ltd and the modern stack are (b).
How long is a KBS exclusivity clause?
Public data and current client contracts show 12–24 months as the standard tie-in with a 6–12 month tail (fees payable on any buyer introduced during the mandate even after termination). Read the clause verbatim before signing.
What if I've already signed with KBS?
Read our /sell-my-business/fire-a-business-broker guide. Termination is legally clean once notice + tail are handled; you can then re-list with the modern stack. Do this before any material buyer contact so tail-fee triggers don't apply.
Is a broker worth it for complex sales?
Sometimes. For genuinely complex sales — international buyers, regulatory approvals, multiple share classes, warranty complexity — the broker's hourly value goes up. For a clean single-buyer trade sale, the modern stack replaces them cleanly.
Do buyers take AI-drafted IMs seriously?
The IM is judged on content — financials, defensibility, growth story — not authorship. A well-drafted AI IM edited by the seller with tax input is indistinguishable from a broker IM to the buyer's advisers.
How do I get started with the KBS alternative?
Start the Sell Ltd survey — it takes 15 minutes and gives you a draft listing plus a draft IM you can edit. If you're not ready to publish, keep it as a private working document. You commit to nothing.