The UK management consulting market is now valued at over £27 billion, with the Management Consultancies Association forecasting sector growth of 5.7% in 2026. For lean consultants and training providers, that growth is a double-edged sword: more demand, but a more crowded market where buyers find it increasingly difficult to distinguish between suppliers.
For those delivering CI training externally to client organisations, LCS accreditation has become one of the clearest ways to change that dynamic.
The Management Consultancies Association's 2025 Annual Industry Report sets out just how fast the sector is moving. In a market growing at that pace, the providers who grow with it are rarely those with the most experience on paper, they're the ones who can prove it.
At LCS, we’ve worked with accredited training providers and consultancies long enough to see consistent patterns in what changes after accreditation. Across how they win work, how they price it, how they bring new clients on board, and how they maintain delivery quality as they grow. In this article, Catrin Archer, Head of LCS, sets out what those four transformations look like.
The CI training market has a trust problem. Buyers, whether procurement teams in large enterprises, L&D leads in mid-sized businesses, or operations directors commissioning external support, are working with a catalogue of providers who all make broadly similar claims. Case studies and testimonials help, but they cannot independently verify the quality of what is being delivered.
Accreditation addresses this directly. It provides what no amount of self-reported credibility can: independent confirmation that a training programme meets defined standards for content, structure, and instructional design.
As Jeroen Aelen, Trainer and Coach at UPD, puts it:
"LCS accreditation provides us with a strong and internationally recognised quality framework for our Lean and continuous improvement programmes. It offers independent confirmation that our training meets high standards in terms of content, structure, and instructional design. This not only strengthens our credibility in the market, but also supports the ongoing development of our learning programmes."
Jeroen Aelen, Trainer & Coach, UPD
From what we see at LCS, the impact is felt most acutely in three areas:
In each case, buyers are either under pressure to demonstrate due diligence on their supply chain, operating within compliance frameworks that favour verified capability, or both. Accreditation provides a direct answer to that scrutiny.
The shift towards accreditation is not just about winning competitive pitches. It changes the nature of the initial client conversation. When a provider's training is independently accredited, the question moves from 'can you prove your methodology works?' to 'how do we get started?'.
The full picture of how accreditation changes competitive positioning, including the structural reasons why procurement teams respond differently to accredited providers, is set out in our whitepaper, The Accreditation Advantage, which you can download today.
Price pressure is a persistent challenge in the CI training market. When services look similar from the outside, procurement defaults to cost. Accreditation breaks that logic.
A recognised qualification framework changes what a client is buying. It’s no longer a training day or a workshop series, but rather a structured capability development pathway that culminates in an internationally recognised certificate for the learner. That is a fundamentally different proposition, and it commands a different conversation about value.
On this, Catrin says:
“One of the clearest shifts we see in accredited providers is how they talk about what they're selling. Before accreditation, the conversation tends to centre on the training itself - the content, the delivery, the day rate. After accreditation, it becomes about what the learner walks away with. The client is investing in a recognised standard of capability for their people, and that changes the pricing conversation entirely.”
The certificate matters to the learner, which means it matters to the client commissioning the training. Ryan King, Managing Partner at Reinvigoration, has certified over 5,000 people through LCS in ten years of accreditation.
That scale of delivery is not incidental, as it reflects what happens when a training business builds its entire offering around a framework that gives learners something tangible to walk away with.
For a deeper look at how accreditation shifts the pricing dynamic, and why clients are willing to pay a premium for verified expertise but increasingly resistant to paying it for commodity services, read The Accreditation Advantage.
Every new client engagement carries a diligence overhead. Before a client commits to a training programme, particularly an internal CI capability-building programme, they want to understand the methodology, review the curriculum, assess the credentials of who is delivering it, and satisfy themselves that the approach will hold up under scrutiny from their own leadership.
For non-accredited providers, that process has to be rebuilt from scratch each time. For accredited providers, much of it is already answered.
Bart van Waes, Managing Partner at Leanprofs, describes it this way:
"The LCS accreditation provides us with a strong and credible foundation for delivering Lean training and consultancy at a consistently high standard. It gives structure, clarity and international recognition to our programs, while still allowing enough flexibility to integrate our own focus on behaviour, leadership and real-world application."
Bart van Waes, Managing Partner, Leanprofs
Bart’s last point on flexibility within a recognised framework is worth dwelling on. Accreditation does not require a provider to abandon their own methodology or house style. It provides the structural credibility that satisfies client due diligence, while leaving room for the distinctive approach that makes a consultancy's offering their own.
For MIGSO-PCUBED, one of the largest project management and transformation consultancies operating in the UK, the impact of that credibility shows up in delivery speed as much as in client acquisition. As Daniel Hamilton, a senior leader at the firm, notes:
"LCS accreditation has had a positive impact both internally and with our clients... having a recognised framework and capability model behind us adds real credibility and structure. It helps our teams move quickly while still delivering sustainable results."
-Daniel Hamilton, MIGSO-PCUBED
Moving quickly while delivering sustainable results is precisely what reduced onboarding friction enables. When a client does not need months of internal sign-off on a provider's approach before training can begin, both sides benefit.
Growth is the ambition, but consistent delivery as you grow is the challenge. For training providers and consultancies adding headcount, expanding into new sectors, or taking on larger and more complex client programmes, the risk of quality dilution is real.
The mechanisms are familiar: knowledge transfer between consultants becomes patchy, methodology application becomes inconsistent, client experience starts to vary depending on who is in the room. The provider's reputation, built on the quality of their best work, starts to be tested by the variability of their average work.
A structured accreditation framework addresses this at the root. When a training programme is built around a defined competency framework, with documented standards for content, delivery, and assessment, it becomes possible to bring new people into it reliably, and to maintain consistency across a growing team.
MIGSO-PCUBED's experience is instructive here. Around 65% of their UK staff are now qualified to at least LCS Level 1A, with many holding higher levels. That breadth of qualification across a large consulting workforce represents a shared methodology, a common language, and a consistent standard of delivery that clients experience regardless of which team member is in front of them.
"It gives our colleagues confidence in the methods and approaches they use, and clients benefit from more consistent, practical, and outcome-focused delivery."
Daniel Hamilton, MIGSO-PCUBED
For smaller consultancies, the dynamic is different but the principle is the same. Brad Jeavons, Principal Consultant at Enterprise Excellence Group, describes the framework's value in terms of what it enables for the organisations he works with:
"The primary benefits of LCS and its accreditation lie in enabling organisations to adopt this framework and use it to develop their own training programmes, competency, and capability."
Brad Jeavons, Principal Consultant, Enterprise Excellence Group
The same logic applies to the consultancy itself. A framework that enables client organisations to build and sustain capability is equally well-suited to doing the same within a growing training business.
Accreditation is sometimes treated as a quality signal or a badge that reassures clients. We think that undersells it. The providers we work with at LCS who have seen the greatest commercial impact from accreditation have not treated it as a credential to display. They have embedded it as a structural foundation for how they develop, deliver, and grow their training offering.
The four dimensions discussed above - winning clients, justifying premium pricing, reducing onboarding friction, and scaling without losing quality - all work together to change your service offering. A provider with a credible independent framework wins better clients, charges appropriately for what it delivers, brings them on board more efficiently, and maintains the quality that keeps them.
The CI training market is not standing still. The global lean and Six Sigma services market is growing at between 5% and 9% annually, and as demand rises, so does the number of providers competing for the same work.
The providers who formalise their credentials now will set the standard, and as more consultancies achieve LCS accreditation, those who delay will find themselves not just undifferentiated, but actively disadvantaged in a market where accreditation is becoming the norm rather than the exception.
The mechanics of how accreditation works in practice, including the submission process, the framework itself, and what it takes to become an Accredited Certifier of Lean Competency, are set out in full in our whitepaper: The Accreditation Advantage, which you can download today.
If you're ready to explore what accreditation could mean for your consultancy or training business, get in touch with the LCS team. We're happy to talk through whether it's the right fit.