WHY LUMINII?

Clients choose Luminii because they know we offer the knowledge, insight, and guidance they need to progress with confidence. Our consultants provide first-class research, rigorous analysis and deep knowledge of their industries. They deliver strategic advice and pragmatic solutions to senior management intending to grow their business and investors to make well-informed investment decisions, create value, and manage risk.

We have developed a strong reputation as a leading provider of commercial due diligence in the mid-market. In 2025, we were invited by the ICAEW Corporate Finance Faculty to co-author the Best Practice Guideline for Commercial Due Diligence, the first formal industry framework.

ICAEW Corporate Finance Faculty’s CDD Best Practice Guideline

ICAEW Corporate Finance Faculty’s CDD Best Practice Guideline

Co-Authors

Real Deals Private Equity Awards</h3>
<p>Winners: 2023

Private Equity Awards

Winners: 2023
Finalists: 2020 - 2026

Mergermarket British Private Equity Awards

British Private Equity Awards

Finalists: 2023 - 2025

Consultancy.uk Awards

Consultancy.uk Awards

Top Consulting Firms of 2025: Private Equity

Our values

Luminii was founded on three core values; integrity, collaboration and excellence – all three stemming from a passion to be our clients’ preferred trusted adviser through the delivery of pragmatic commercial advice which genuinely supports their success.

We love the work we do and are passionate about helping our clients achieve their business and investment goals; our strength lies in the trust we can easily build with our clients and our genuine passion to deliver quality work that exceeds expectations and provides true value; every client and project is important to us.

OUR EXPERTISE

Luminii combines deep consulting expertise with a multi-disciplinary approach, bringing together qualitative and quantitative research, advanced analytics, and strategic insight across diverse sectors and geographies.

Primary Research Excellence

We conduct high-impact primary research, engaging directly with customers, competitors, suppliers, and industry leaders. Our capabilities span in-depth interviews, online surveys, focus groups, and mystery shopping, delivering rich, real-world insights that inform critical decisions.

Robust Market Sizing & Modelling

Our market assessments are built on rigorous, multi-method approaches. By triangulating top-down and bottom-up methodologies, we explore multiple scenarios to deliver highly credible market sizing and forecasting with confidence.

AI Risk & Opportunity Identification

In partnership with leading AI specialists, we help organisations identify and navigate emerging risks while uncovering new growth opportunities. Our approach enables businesses to leverage AI strategically, enhancing resilience and unlocking value.

Strategic Thinking & Workshops

We go beyond analysis to drive action. Through structured strategy development and interactive workshops, we help leadership teams align on priorities, challenge assumptions, and shape clear, executable strategies.

Our community impact

Luminii donates 7% of its annual profits to the below selected organisations.

Cancer Research UK

Cancer Research UK

British Heart Foundation

APSL

Our Clients

  • Speedy Freight
  • Octopus Ventures
  • Hartley Botanic
  • 57stars
  • IMBIBA
  • Waterland
  • Growth Partner
  • KLAY
  • FPE
  • Rockpool
  • StanChem
  • ECI
  • MitraAI
  • Connection Capital
  • Palatine
  • Teradyne
  • Neighbourly
  • CRU
  • Arete
  • Foresight
  • Ideagen
  • Albion Capital
  • Octopus Investments
  • MPP
  • Shawbrook
  • YFM
  • Penta Capital
  • Capital Croissance
  • Gresham House Ventures
  • BGF
  • Riverside
  • EDM
  • Maven
  • Vertical Meadow
  • NVM
  • EVO Dental
  • Guinness Global Investors
  • Smart Search
  • Total Capital
  • Osprey
  • Agathos
  • Turner

CLIENT TESTIMONIALS

  • We engaged Luminii for Commercial Due Diligence support on one of our recent investments and we were highly impressed with their high-quality report, professionalism, and flexibility. Luminii were able to address our key questions and due diligence requirements against a tight deadline. They conducted a robust primary research programme, consisting of referencing and surveys and we appreciated their timely updates throughout our engagement. Luminii's team is highly collaborative, showcased by how they worked with us as well as the Management team, other advisors, and our lenders, which we appreciated. We would not hesitate to recommend their services and look forward to working with them again in the future.

    Global Private Equity Firm with €20 Billion Assets Under Management

  • To date, the Luminii team have supported us on over 20 deals. They have consistently delivered high quality CDD reports, always against tight deadlines and to above expectation. They offer good value for money. Luminii are quick to understand our needs, offer sound advice and support on complex topics. Their ability to tailor the scope to our needs, focus on the core issues of each project and not being afraid to give their opinion backed by sound research and analysis is a great benefit to us. I would recommend their services without hesitation.

    Private Equity Firm with £4 billion Assets Under Management

  • Luminii Consulting proved themselves to be a highly flexible and dedicated team who delivered a high quality CDD report in a complex tech sector. They were able to cover a wide scope across multiple geographies to a strict deadline and provided us with the required insight and strategic advice to make an informed decision. We appreciated their effort and enjoyed working with the Luminii team.

    Private Equity and Venture Capital Firm with £9.1bn Funds Under Management

  • It was great to work with the Luminii team who provided us with clear, focused and thorough commercial insight. Their work was hugely helpful in both assessing the investment opportunity and informing the key focus areas of the growth plan. We appreciated Tina, Ethan and Lushani's support throughout the process and look forward to working with them again.

    Private Equity Firm with £4.5bn+ Assets Under Management

  • Luminii Consulting consistently demonstrate a high level of focus and expertise and have delivered several high quality CDD reports for us across different sectors. Their approach is thorough and professional and has provided us with the evidence and insight needed to support our investment decisions.

    Venture Capital Firm with £1 billion of Assets under Management

  • We engaged Luminii to deliver Vendor Commercial Due Diligence support. From the outset, their team demonstrated a deep understanding of investor priorities, crafting a well-considered scope of work that addressed key industry dynamics and anticipated investor questions. They delivered a high quality VCDD that helped articulate our value proposition, clarify our market positioning, substantiate our competitive differentiation, and validate key assumptions in our business plan. Their collaborative approach stood out, engaging seamlessly with all stakeholders involved, from our management team to the Corporate Finance Advisors, the exiting PE firm and potential bidders. Luminii proved to be a dependable partner, driven by a genuine passion to support us in our journey and their commitment to excellence.

    Risk Management and Intelligence Provider (Vendor Commercial Due Diligence)

  • Luminii’s clear, concise, and easy-to-digest reports have equipped our senior management team with the strategic clarity needed to make critical decisions. Their work has played a pivotal role in driving revenue growth and shaping our long-term strategic direction. Looking ahead, we are excited to embark on our fourth project with Luminii to assess global market opportunities and propel us into the next phase of growth. I highly recommend Luminii to any business seeking insightful, results-driven strategic and value-creation support.

    Luxury Product Manufacturer & Retailer

  • The Luminii team did an excellent job of covering the project objectives set & provided us with invaluable research & information that helped us with our business direction & decisions. They understood our business needs and were thorough, diligent, and offered sound advice. We have since progressed well with market entry & have moved forward with one of their contacts who is now running our office in the target market in Spain. We would certainly recommend them to other businesses looking for support!

    Global Freight Company

  • We were impressed with Luminii. You delivered what you promised, the information was useful and actionable, which is what we were looking for. In addition, you were responsive and timely, and the team liked the way you worked. Would I recommend you if someone called me? I definitely would, with an enthusiastic recommendation.

    Global SaaS Company

  • Luminii provided us with an excellent report which included comprehensive analysis of our market and business alongside clearly articulated actionable post-deal recommendations. The report has been utilised by management post-deal to help inform our 100-day plan as well as the company's wider strategic priorities. Furthermore, it was great to work with a team who were very collaborative and passionate about giving the best value to their clients.

    Leading Leisure Tech Provider