Growth you can audit. Change that outlives us.
Tessel Advisory agrees one figure before the work starts and publishes it after, whichever way it came out. Six services, four stages, twenty-eight weeks.
engagements closed
since 2021
still in place
a year after handover
practitioners
salaried, no subcontractors
sectors
one method in all of them
Six services. One method. One measured outcome.
Opportunity ledger
01Reprice the core range£4.1m
02Resequence the depots£2.3m
03Exit two lines£0.9m
First build → 01
The audit ends on a page, not a presentation.
Four weeks on your own data: where the money, the hours and the risk actually go. It closes on a ranked list of moves with the arithmetic attached, and the first recommendation can be that you do not need us.
Priced
Every move carries the figure behind it, and the range it could land in.
Sequenced
In the order they pay, so the first build funds the second.
Three outcomes, and the twenty-eight weeks behind each one.
claims-processing time at Meridian Mutual
to audit-ready at Cobalt Bank, from ninety
unplanned downtime at Halvard Energy
28 weeks at true proportion. Delivery is the widest because it is the only stage that ends with something in production.
Casework
Five engagements, one at a time.
The client, what changed, and the one figure each engagement was measured by. Published either way.
All published cases-
Insurance 01 / 05Claims triage copilot at Meridian Mutual
A copilot that reads the claim, proposes the route and shows its evidence: built with the claims team, handed to them in twelve weeks.
−41% claims-processing time
Read the case -
Financial services 02 / 05Model-risk framework for Cobalt Bank
A model register with risk tiers, an audit trail from data to decision, and a policy set mapped to the regulation clause by clause.
14 days to audit-ready, from ninety
Read the case -
Energy & utilities 03 / 05Maintenance regime redesign at Halvard Energy
A fixed maintenance calendar replaced by a schedule built on the machines' own readings, and argued with by the crews who run it.
−23% unplanned turbine downtime
Read the case -
Logistics & transport 04 / 05Network redesign at Northline Logistics
Forty depots, two disagreeing forecasts, and a network resequenced around the hours the depots actually had.
+9.6pp on-time delivery across the network
Read the case -
Retail & consumer 05 / 05Range and pricing strategy at Ostro Retail Group
The margin map showed that a fifth of the range was paying for the rest. The pricing was tested on the shelf before it went in a deck.
+3.4pp gross margin, twelve months after repricing
Read the case
Nine sectors, and the room the work happened in.
64 engagements / 9 sectors
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S.01
Financial services banks, lenders, asset managers and payments banks, lenders, asset managers and payments 11
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S.02
Insurance claims, underwriting, life and reinsurance claims, underwriting, life and reinsurance 9
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S.03
Energy & utilities generation, networks, water and renewables generation, networks, water and renewables 8
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S.04
Retail & consumer grocery, home, specialist and consumer brands grocery, home, specialist and consumer brands 8
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S.05
Healthcare providers, trusts, diagnostics and care groups providers, trusts, diagnostics and care groups 7
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S.06
Logistics & transport networks, freight, ports and fleets networks, freight, ports and fleets 6
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S.07
Manufacturing food, components, textiles and process industries food, components, textiles and process industries 6
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S.08
Public sector councils, health boards and transport authorities councils, health boards and transport authorities 5
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S.09
Technology & media software, publishers and platforms software, publishers and platforms 4
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