Jonathan Tunstall Llb Aca
AeroLeads people directory · profile

Jonathan Tunstall Llb Aca Email & Phone Number

Senior Finance Leader | Finance Business Partnering | Financial Planning and Analysis | Technology Finance & Projects | M&A Integration & Separation | Cost Optimisation | Private Equity
Location: London, England, United Kingdom 11 work roles 2 schools
LinkedIn matched
✓ Verified August 2026 3 data sources Profile completeness 71%

Contact Signals

LinkedIn Profile matched
3 free lookups remaining · No credit card
Role
Senior Finance Leader | Finance Business Partnering | Financial Planning and Analysis | Technology Finance & Projects | M&A Integration & Separation | Cost Optimisation | Private Equity
Location
London, England, United Kingdom

Who is Jonathan Tunstall Llb Aca? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

Jonathan Tunstall Llb Aca is listed as Senior Finance Leader | Finance Business Partnering | Financial Planning and Analysis | Technology Finance & Projects | M&A Integration & Separation | Cost Optimisation | Private Equity based in London, England, United Kingdom. AeroLeads shows a matched LinkedIn profile for Jonathan Tunstall Llb Aca.

Jonathan Tunstall Llb Aca previously worked as Director of Finance - FTSE Russell and Risk Technology at Lseg (London Stock Exchange Group) and Director of Finance - Data and Analytics Technology at Lseg (London Stock Exchange Group). Jonathan Tunstall Llb Aca holds Aca, 1St Time Passes from Icaew.

Profile bio

About Jonathan Tunstall Llb Aca

Respected senior finance leader with over 20 years of strategic experience within prestigious blue-chip organisations in financial markets infrastructure, technology and airlines. Proven track record of robust finance business partnering in complex organisations, delivering impactful financial insights that drive transformation across global businesses. Highly skilled in leading diverse finance teams through complex projects and integrations that achieve significant cost savings and operational efficiencies. Practical and adaptable, with academic strength complemented by a deep understanding of technological change, acting as an effective bridge between finance, tech teams and vendors. A decisive but reflective leader, adept at building strong networks and fostering high performing teams where individuals are encouraged to contribute and excel. Now seeking a senior finance role with the opportunity to leverage expertise in finance business partnering, technology finance and cost management to drive successful change and achieve corporate goals.Key Expertise:Finance business partneringFinancial reporting and analysisTechnology financeTransformationIntegrationBudgeting and forecastingProject AccountingCost Reduction InitiativesTeam building

11 roles

Jonathan Tunstall Llb Aca work experience

A career timeline built from the work history available for this profile.

Director Of Finance - Ftse Russell And Risk Technology

London

FTSE and Risk• Partnered with Technology Leaders supporting the Risk Intelligence and FTSE Russell LSEG Divisions• Overall cash spend of £130m with 1,300 resources across 10 countries and multiple vendors.• Led tam of 2 Finance managers• Represented Tech Finance at relevant Portfolio BoardsAchievements• Completed carve out FTSE and Risk budgets incorporating additional area to FTSE Russell Tech• Successful clean up of messy FTSE Russell Tech budget, huge improvements in management reports• Working with teams to plan and deliver efficiencies going into 2024 plan• Optimisation of Cloud spend in both areas with FTSE using Delphix virtualisation and dashboard• Risk workforce transformation – insourced % increased from 30% to 60% realising efficiencies• Integration of resources and investment funding from 2 acquired companies• Drove further resource efficiencies of £2m going into 2024 – reduction in force, role elimination

Mar 2023 - Mar 2024

Director Of Finance - Data And Analytics Technology

London

• Partnered with 4 of the Technology groups supporting the Data & Analytics Division of LSEG• Combined Cash spend of £150m / 1,500 resources• Additional responsibility for LSEG/Refinitiv Revenue Synergy Project Tech spend - £170m • Key SME around the impact of rolling out LSEG systems to Refinitiv resourcesAchievements:• Delivered TCO (Total Cost of Ownership) Pilot on test area working with PWC• Managed huge resource ramp-down needed to get back to targets – prioritisation decisions • Established proper reporting of revenue synergy costs to the program and Business/Tech leders• Worked with revenue synergy Program and external advisors (KPMG) to adopt standard systems • Anticipated and dealt with issues Clarity Role out to Refinitiv resources. Managed 3rd party rates• Led a time booking review that successfully shifted £6m to capital to get back to targets• Offshored my team of 2 to India – effective hiring, talent development and coaching• Initiated changes to time booking codes to deliver enhanced understanding and accuracy

Feb 2021 - Feb 2023

Director Of Finance - Product Engineering Technology

London

• Partnered with leaders of Product Engineering Team (application development & support)• £350m cash spend, mainly internal and external resources• Led team of 2 Finance managers• Key business contact around investment project spend, working with business finance leadersAchievements• Provided clarity on Tech funding despite team restructuring and investment re-prioritisation• Significant resource onboarding and subsequent ramp down in line with PE investment bubble• Set up process for investment spend and performance commentary working with Delivery Directors • Drove resource outsourcing targets, changes and savings with leadership• Led analysis around inputs of costs into Product Profitability – allocations, drivers etc• Led analysis on resource capitalisation issues and delivered initial fixes and process improvements

Oct 2018 - Jan 2021

Director Of Finance - Enterprise Networks And Cloud Connectivity

London

• Partnered with Head of Network and Cloud Technology team - £400m spend• Led team of 2 finance managersAchievements• Completed the migration that started in my previous role with > £200m of annual savings• Consolidated multiple areas of Cloud spend into one Enterprise account with AWS with sourcing• Established an operating rhythm of forecasting and reporting cloud spend across the businessRefinitiv separation• Completed Network separation financials – highly complex• TSA structures and £ amounts created, negotiated and agreed• Budgets separation delivered and dual reporting established• Produced Cloud financial modelling for migration of Thomson Reuters apps to cloud post-disposal• Worked with the Blackstone (Private Equity) team to identify additional £30m savings opportunities

Jan 2017 - Sep 2018

Director Of Finance - Technical Services And Connectivity

London

• Partnered with Head of Networks Technology and Customer Technical Services• £450m cash spend and 600 global resources.• Built a new team 2 finance managers – successful hiring and talent development • Responsible for all internal finance reporting and FP&A activityAchievements• Secured approval for a huge multi-year network migration project/business case • Accurate forecasting and tracking of implementation costs and ongoing benefits• Specific financial section created for the multiple vendor RFPs associated with migration• Implemented of special sales bonus scheme to optimise customer migrations• Transferred in the Hosted Solutions budget and improved vendor and accounting processes

May 2012 - Dec 2016

Business Operations Manager - Network Communications

London

• Business operations and management reporting across £400m external spend• Led of a team of 5 analysts• Responsible for last mile network pricing to external customers and net costsAchievements• Implemented improved controls around spend approvals and vendor orders• Significant improvements in spend forecasting and interlinks between inventory, billing and P&L • Improved net costs through identification of unbilled customers and missed vendor cancels

May 2009 - Apr 2012

Finance Manager - Corporate Reporting

London Area, United Kingdom

Group consolidation, production of Annual report, IFRS application, elements of group audit, Investor relations support.

Feb 2006 - Dec 2008

Finance Manager - Corporate Business Planning

London Area, United Kingdom

Responsible for Corporate Forecasting Analysis and modelling, Route result and profitability reviews/recommendations, Industry benchmarking, FP&A activity.

Mar 2003 - Jan 2006

Senior Decision Support Analyst

London Area, United Kingdom

Special Projects around areas such as Frequent Flyer schemes accountin, Subsidiary airline profitability review.

Dec 2001 - Feb 2003

Finance Anlayst - Marketing

London Area, United Kingdom

Finance Business Partner for 2 Senior Marketing Leaders covering In-Flight Entertainment and London Eye managing their budgets, forecasts, business cases and working with key external vendors.

Apr 1999 - Nov 2001

Audit Senior

London

Audit and Accounting activities, mainly on client sites and ACA study.

Jan 1995 - Mar 1999
2 education records

Jonathan Tunstall Llb Aca education

Aca, 1St Time Passes

FAQ

Frequently asked questions about Jonathan Tunstall Llb Aca

Quick answers generated from the profile data available on this page.

What is Jonathan Tunstall Llb Aca's role at their current company?

Jonathan Tunstall Llb Aca is listed as Senior Finance Leader | Finance Business Partnering | Financial Planning and Analysis | Technology Finance & Projects | M&A Integration & Separation | Cost Optimisation | Private Equity.

Where is Jonathan Tunstall Llb Aca based?

Jonathan Tunstall Llb Aca is based in London, England, United Kingdom.

What companies has Jonathan Tunstall Llb Aca worked for?

Jonathan Tunstall Llb Aca has worked for Lseg (London Stock Exchange Group), Refinitiv, Thomson Reuters, British Airways, and Bourner Bullock.

How can I contact Jonathan Tunstall Llb Aca?

You can use AeroLeads to view verified contact signals for Jonathan Tunstall Llb Aca, including work email, phone, and LinkedIn data when available.

What schools did Jonathan Tunstall Llb Aca attend?

Jonathan Tunstall Llb Aca holds Aca, 1St Time Passes from Icaew.

Find 750M verified contacts

Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.