Invisory
Limited
Consultancy & Advisory

A clear view on strategy, M&A and investment.

Strategy · M&A · Investment & Advisory

Invisory Limited is the consultancy practice of Mark Barber, working with owners, management teams and investors on the decisions that carry the most weight — buying, selling, positioning and building. Projects are deliberately small in number, senior throughout, and shaped around the question actually being asked.

Start a conversation What we do

Services

Discrete projects or ongoing support, depending on what the situation needs.

Buy- and sell-side advisory
Discrete project consulting
NED and management team support
Market and competition reports
Strategic development reports
M&A origination and scenario modelling
Commercial due diligence
Services portfolio consolidation
Go-to-market and branding

Selected work

Three anonymised sample deliverables from a buy-and-build mandate in secure ICT and critical-infrastructure services. Names and figures are illustrative.

Market sizing
TAM
SAM
SOM
Gov
Def
Ent
Ind
Hlth
DC
Report A · 48 slides

Market & competition analysis

A six-part market study sizing the opportunity from TAM through to a defensible SOM, then testing how winnable it actually is. The central finding was a two-speed market: a broadly flat total ICT spend concealing a secure layer growing at three times the rate. Structured around market size by vertical and service line, growth, competitive intensity and positioning, routes to market and the frameworks that gate them, consolidation dynamics and the buying population — closing with how customers perceive a sponsor-backed supplier and how that narrative is best managed.

Value bridge
Platform
+
Bolt-ons
=
Group
Multiple
EBITDA build × multiple expansion
Report B · 19 slides

Investment thesis

The value-creation case, built on two levers that multiply rather than add: earnings growth through a qualified acquisition pipeline, and multiple expansion from buying sub-scale assets and exiting a scaled, capability-complete group. The work traced the EBITDA bridge acquisition by acquisition, set capability multiples against precedent transactions, and reconciled a capability-weighted multiple to a blended exit figure through scale and revenue-mix adjustments. It closed on hold-period and leverage sensitivities, a public–private mix optimum, the highest-value capability gaps, and a risk register with mitigations.

Scenario toggles
TargetEBITDAMult.EV
3 deals£20m14.3×£293m
5 deals£25m14.4×£363m
8 deals£30m14.4×£435m
Full build£34m14.1×£476m
Model · 5 linked sheets

Exit scenario model

A live workbook sitting under both reports, built so the board could test the plan rather than read a fixed answer. Every acquisition target carries an on/off toggle; switching one changes the consolidated capability map, the revenue split by vertical, the public–private mix, the blended exit multiple, enterprise value and the return sensitivities together. A scenario explorer answers the two questions that matter — the fewest acquisitions to reach a target, and the highest multiple achievable near it — from an exhaustive search across every possible combination of targets, with each figure reconciled to its source and every assumption written down.

Approach

01

Senior throughout

You work with the person who scoped the project, from the first conversation through to the final report. Nothing is delegated to a team you have not met, and nothing is padded out with junior hours. That means the questions asked in week one are informed by the same judgement that writes the conclusion, and you can pick up the phone to the person who formed it.

02

Scoped to the question

Some decisions need a full diligence exercise with a data room, management interviews and a modelled range of outcomes. Others need two weeks and a straight answer. The work is sized to the decision rather than to a standard template, so you are not paying for analysis that will never change what you do next.

03

Written to be used

Reports are built for boards and investment committees: the analysis up front, the reasoning behind it laid out plainly, and the underlying evidence set out where it can be challenged. The aim is a document that survives scrutiny in the room and still makes sense when it is read again six months later.

Contact

Mark Barber
Founder & Principal
+44 7790 012394
invisory@icloud.com
The Rectory, Longborough
Moreton-in-Marsh, GL56 0QF, UK