John Miller
About
John Miller is from London, England, United Kingdom. John is currently Columnist at Marketing Week, located in London Area, United Kingdom. John also works as Strategic Financial Advisor at BOSS IT, a job John has held since Nov 2024. Another title John currently holds is Strategic Financial Advisor at SapienX. In John's previous role as a Board Advisor at Spring, John worked in London, England, United Kingdom until Aug 2024. Prior to joining Spring, John was a Interim Chief Financial Officer at Live Company Group plc and held the position of Interim Chief Financial Officer at London, England, United Kingdom. Prior to that, John was a Chief Financial Officer at Spring, based in London, England, United Kingdom from Jan 2020 to Feb 2023. John started working as Fractional CFO & internal Chief Operating Officer at Addition in London in Jan 2021. From Dec 2018 to Jan 2020, John was Divisional Financial Controller at Transport for London, based in London, Greater London, United Kingdom.
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John Miller's current jobs
Columnist at Marketing Week, writing on the intersection of finance and brand - breaking down the numbers behind the UK’s best-loved names and showing how brand drives commercial performance.
Developed and stress-tested financial models to support the company's capital raise, providing investors with clear visibility on growth assumptions and runway. Presented at monthly board meetings, ensuring leadership presented structured updates on financial performance, milestones, and strategic progress. Designed and implemented a KPI framework across key business functions. Held the executive team accountable to KPIs and a culture of disciplined execution at board level. Provided ongoing strategic oversight as an investor board member.
- Joined the business at £3k MRR and supported growth to £30k MRR. A 10x increase, providing the financial infrastructure and strategic oversight to scale with confidence - Built the Chart of Accounts and full reporting function from scratch, giving the founding team their first clear, structured view of business performance. - Constructed detailed runway models enabling the leadership team to make informed decisions on hiring, investment, and growth pacing. - Raised debt funding for the founder-led business, managing the process end-to-end from structuring through to completion. - Designed and implemented founder remuneration plans, balancing personal financial needs with the cash requirements of a high-growth business.
Built detailed runway models for a £4m turnover, founder-owned business. Providing clear visibility on cash position, burn rate, and strategic optionality as the business scales. Introduced monthly board reporting cadence to track performance against plan, with the business growing at 100% YoY, ensuring leadership stays disciplined and forward-focused Designed and implemented a KPI framework to create transparency across commercial and financial performance. Structured and implemented a founder remuneration plan tailored to the needs of a founder-owned business, balancing personal financial goals with sustainable business cash flow
I lead the financial reporting for a newly acquired high-growth, high-margin division, and manage FP&A activities for the entire extremely high-growth >€20m ARR group. My key responsibilities include: - Conducting detailed analysis to drive value creation and strategic board-level planning. - Managing group pipeline reporting and integrating it into quarterly targeted planning. - Leading long-term financial forecasting to support strategic decisions. - Collaborating with deal and tax advisors to implement efficient initiatives. - Redefining monthly analysis to provide insightful, comprehensive group-wide financial reporting to PE owners.
AI powered SAAS platform providing always on brand tracking to some of the worlds largest FMCG brands. Providing them insights to understand, real time, what marketing is working and why. - Co-owner of the business following successful leadership of a Management Buyout (MBO), taking strategic and financial ownership of the company alongside the senior leadership team. - Led the MBO end-to-end, including all legal negotiations and a debt-for-equity restructuring with a key supplier, fundamentally strengthening the company's balance sheet and cap table. - Active member of the senior leadership team, contributing to company strategy and supporting fundraising initiatives. - Redefined and own SaaS KPI reporting, holding all department heads accountable to performance targets at leadership level. - Full ownership of budgeting and rolling forecasts, providing the board and investors with a robust, forward-looking view of financial performance. - Delivered a 3x increase in R&D tax credits through historic claims - with no increase in business expenses - via deep knowledge of the scheme. - Reduced annual cash burn by 25% through strategic insourcing and technology-led process improvements. - Responsible for monthly PE ownership reporting and all key financial controls across a Group operating across 3 continents (Europe, US, Africa). - Manages all contract maintenance and renewal negotiations across the business. - Mentors and oversees a Finance Manager, building capability within the finance function.
John Miller's past jobs
From pre-loved to re-loved, we are changing the way tech is consumed. Created strategic and financial plan with the founders in order to manage a budget of £3.5m with the correct financial freedom whilst having the necessary processes and controls in place. Part of the board and the critical decision making. Including:- - navigate Covid whilst maintaining the workforce, - completing tax credits to raise ~£500k and equity/debt raise £900k through the Future Fund. - developed strategic networks with the far east as potential supplier chain and customer partners
At Addition, we go beyond the books by giving small businesses the financial savvy of big ones. Using the latest software and our proprietary tools to create an efficient place to work and allow us to be a real addition to our clients business My role is dual focussed: Firstly to offer our amazing customer service through clear, straightforward and actionable financial advice through robust financial analysis, simple guidance and proactive delivery. Secondly; finding and implementing the best software and processes to deliver the excellent tailored service to everyone of our customers The role invoices the day-to-day management of 9 bookkeepers as well as a number of contractors responsible for implementing automations for routine tasks to operational efficiencies.
Deputy to FD to support on the largest transformation in the Underground’s history whilst heading up a team of 25 financial professionals and business partners Responsible for many cost saving programs including being on the negotiating team for the highly complex pay award for 17,000 workers represented by 4 unions Regularly deputised for FD at leadership meetings to sign off on strategic items Held day-to-day finance leadership of an entity with £3.0bn of Revenue and £0.7bn of EBITDA Coached 3 individuals from team of 25 to gain promotion to manager