Halden Advisory
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01 / Independent advisory · London

We advise on the decisions that don't get a second attempt.

Board-level counsel on transactions, restructurings, and capital decisions — argued from evidence, not adjectives. Read the figures first.

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£2.4bn

Cumulative transaction value advised across 40 mandates since 2011. 1

02 / Reach & scale

Where the mandate reaches.

5

Permanent offices, across five countries — a principal is never far from the table. 9

  1. 1LondonHead office
  2. 2FrankfurtEurope
  3. 3MadridIberia
  4. 4New YorkAmericas
  5. 5SingaporeAPAC

40

Mandates closed to completion, 2011–2025 2 — and 94% of clients commission a further mandate within 24 months. 4

03 / Practice

Four disciplines. One standard of proof.

01 Transactions & M&A Buy-side and sell-side counsel from first read to completion. £2.4bn 02 Restructuring Balance-sheet and group reorganisation under time pressure. 11 03 Capital & financing Debt, equity, and hybrid structures argued to the board. 23 04 Governance & risk Independent judgement where the stakes outlast the deal. 18
The full practice →

04 / Selected mandates

What the counsel was worth.

01

£840m

Restructured a 9-entity group ahead of a cross-border sale.

Consolidated financing, resolved inter-company exposure, and cleared the group for a single completion. 5

Industrials · Sell-side · 14 months

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02

3.1×

Recapitalised a founder-owned business without diluting control.

Structured a hybrid facility that funded expansion and kept the cap table intact. 6

Consumer · Financing · 7 months

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03

120days

Steered a contested board through a governance reset.

Independent review, a revised mandate for the board, and a settled succession — inside a quarter. 7

Infrastructure · Governance · 4 months

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Every mandate →

05 / Who we work with

Boards that measure advice by its outcome.

We work quietly and name clients only with their consent. The cells below are yours to fill with permissioned marks.

18

Distinct sectors advised, from industrials to infrastructure. 3b

06 / Point of view

Most advice is priced by the hour. Ours is measured by the decision it protects.

We take a small number of mandates a year so that a principal is always at the table — not a deck prepared by someone you'll never meet.

How we work

07 / Next step

Bring us the decision you can't get wrong.

A first conversation is scoped, confidential, and free of a pitch. We'll tell you plainly whether we're the right firm for it.

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48hrs

Typical time to a first response and an honest read on fit. 8

Basis of figures

  1. 1Cumulative transaction value across 40 engagements, 2011–2025; the firm's own records.
  2. 2Mandates closed to completion, 2011–2025; a mandate is counted once.
  3. 3Principals with signing responsibility; median tenure 19 years, to March 2026.
  4. 3bSectors with at least one mandate advised to completion, 2011–2025; the firm's own classification.
  5. 4Share of clients commissioning a further mandate within 24 months; 2011–2023 cohorts.
  6. 5Aggregate consideration at completion; disclosed with the client's consent.
  7. 6Facility size relative to prior committed debt; illustrative of structure, not a return.
  8. 7Calendar days from engagement to a settled board resolution.
  9. 8Median first-response time across enquiries received in 2025.
  10. 9Permanent offices maintained across five countries, to March 2026.