Finance support that gives growing businesses clearer control and better decisions.
Oppenheim Advisory supports UK leadership teams that need stronger reporting, tighter planning, better commercial judgement, and credible preparation for growth, funding, or exit without rushing into a full-time finance director hire.
Where support usually starts
Most engagements begin when finance needs to become more proactive.
Financial control and visibility
Management information exists, but it arrives too late or without the context needed for confident decisions.
Commercial and board support
The business is growing, but commercial choices and board conversations need more senior finance input.
Exit and transaction readiness
Owners want cleaner numbers, stronger preparation, and hands-on support ahead of investment, diligence, or exit.
8+
Core service lines
Across reporting, planning, governance, commercial finance, and transaction support.
30+
Years of senior finance experience
Hands-on leadership across growth businesses, operational change, and exit preparation.
UK
Delivery footprint
Based in Maidenhead with active work across Berkshire, London, the South East, and beyond.
Start with the finance priorities that matter most right now.
Businesses rarely need every service at once. The most effective support comes from matching a small number of high-impact finance disciplines to the pressure points that are holding decisions back.
The groups below reflect how most engagements are structured in practice: stronger financial visibility, sharper commercial and board support, or focused preparation for a funding or exit event.
Best when
Financial control and visibility
Build clearer reporting, better forecasting, and tighter cash discipline so leadership decisions are grounded in live financial reality.
Typical trigger
Management information exists, but it arrives too late or without the context needed for confident decisions.
Best when
Commercial and board support
Strengthen pricing, governance, leadership judgement, and expansion planning as the business becomes more complex.
Typical trigger
The business is growing, but commercial choices and board conversations need more senior finance input.
Best when
Exit and transaction readiness
Prepare the business for sale, reduce deal friction, and manage diligence or execution with a steadier finance lead.
Typical trigger
Owners want cleaner numbers, stronger preparation, and hands-on support ahead of investment, diligence, or exit.
Eight service lines, organised to be easier to scan.
Each service page goes into more detail. This overview is designed to help you identify which capabilities are most relevant first, then move quickly to the pages that match your priorities.
Exit Planning Advisory Services
ServiceStrategic exit planning services to maximise your business value and achieve a successful sale. Expert guidance through trade sales, EOTs, and MBOs.
Cash Flow Management Services
ServiceExpert cash flow management and forecasting services to optimise working capital and ensure financial stability for your growing business.
Management Reporting Services
ServiceTransform your financial data into actionable insights with comprehensive management reporting that drives better business decisions.
Budgeting and Forecasting Services
ServiceStrategic financial planning through robust budgeting and rolling forecasts that drive accountability and enable confident decision-making.
Exit Process Management
ServiceExpert guidance through every stage of your business sale, from buyer negotiations to completion. Maximise value while minimising stress and disruption.
Geographic Expansion Services
ServiceStrategic financial guidance for international expansion. Establish operations in new markets with proper financial infrastructure, compliance, and control.
Commercial Finance Services
ServiceDrive profitability through strategic pricing, contract negotiation, and commercial analysis. Make better business decisions with financial rigour.
Non-Executive Director Services
ServiceIndependent board-level expertise to strengthen governance, provide strategic guidance, and support business growth through experienced financial leadership.
Senior finance support led by Lak Sidhu.
Lak Sidhu brings more than 30 years of finance leadership across management reporting, commercial improvement, international expansion, diligence, trade sales, and Employee Ownership Trust exits. That experience helps clients focus quickly on the work that improves control, confidence, and value.
Board-level judgement
Practical support for owners and leadership teams making commercially important decisions.
Transaction experience
Hands-on support through diligence, trade sales, EOTs, and exit preparation.
Flexible engagement
Ongoing fractional support or focused project work, shaped around the business stage.
Relevant case studies behind the service offer.
B2B Marketing & Media Agency
Planning for Growth & Pre-Exit Preparation – B2B Marketing & Media Agency
B2B Marketing & Media Agency
How Oppenheim Advisory Lak transformed a successful B2B marketing agency through strategic operational improvements, ultimately preparing it for a successful Employee Ownership Trust exit.
Enigma Marketing Services
Trade Sale – Enigma Marketing Services
B2B Technology Marketing Agency
How Oppenheim Advisory Lak guided Enigma Marketing Services through a successful acquisition by a US media agency, managing the entire due diligence process and maximizing value for all parties.
Next step
Need a clearer finance function, not more noise?
Book a practical conversation about the bottlenecks today, which services matter most, and how support should be structured for the business.