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Simon Leathers Email & Phone Number

Finance Director at ONI at ONI
Location: Henley-On-Thames, England, United Kingdom 12 work roles 2 schools
1 work email found @fox-davies.com LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

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Current company
ONI
Role
Finance Director at ONI
Location
Henley-On-Thames, England, United Kingdom

Who is Simon Leathers? Overview

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Quick answer

Simon Leathers is listed as Finance Director at ONI at ONI, based in Henley-On-Thames, England, United Kingdom. AeroLeads shows a work email signal at fox-davies.com and a matched LinkedIn profile for Simon Leathers.

Simon Leathers previously worked as Finance Director at Oni and Non Executive Director at Fiinu. Simon Leathers holds Beng (Hons) – Manufacturing Engineering & Management from University Of Nottingham.

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Email format at ONI

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{first}.{last}@fox-davies.com
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Profile bio

About Simon Leathers

A senior finance professional with over 25 years’ experience of advising and executing a wide range of corporate transactions and has a range of public and private company board experience. His experience includes non-executive advisory roles and executive finance lead roles, all within high growth companies.Core Skills• Finance Department lead in fast growing SaaS business, responsible for cash management and process development• Managing complex projects, across a number of internal and external parties, to tightly defined timetables • Reviewing all key commercial, financial or legal due diligence reports and negotiating all agreements in relation to a proposed transaction• Providing practical and innovative solutions to overcoming those obstacles that inevitably arise and thus ensuring a swift and successful completion.Experience• A hands-on Chief Financial Officer with responsibilities across all aspects of financial management, book keeping, budgeting, forecasting and financial reporting• Worked with public and private clients ranging in size from £1m to €300m (Mkt Cap)• Provided Corporate Finance lead advisory services within large accountancy firms, small-medium size broking firms and small boutiques• Comfortable operating in a regulated environment with experience of the Takeover Panel, the LSE’s AIM Regulation team and the UKLA• Regularly advising company boards on capital market and corporate action matters

Listed skills include Corporate Finance, Ipo, Investment Banking, Mergers And Acquisitions, and 23 others.

Current workplace

Simon Leathers's current company

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ONI
Oni
Finance Director at ONI
AeroLeads page
12 roles · 26 years

Simon Leathers work experience

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

Finance Director

Current
Oni

Oxford, Oxfordshire, GB

  • Founded in 2016, ONI is now a leading and rapidly growing biotech redefining the boundaries of scientific discovery with super-resolution microscopy. The Nanoimager, ONI’s flagship product, is the world’s first desktop.
  • Led the Group’s transition into Netsuite ERP from a Xero-based suite of solutions.
  • Rebuilt the UK finance team (2 to 4), evolving accounting procedures and developing a comprehensive management reporting package.
  • Managed financial reporting, ensuring compliance with UK financial and legal obligations.
  • Produced and maintained company financial accounts, preparing monthly management accounts and core financial metrics.
  • Provided financial modelling and analysis for budgeting and valuation purposes.
Sep 2022 - Present

Non Executive Director

Current

Weybridge, Surrey, GB

  • Fiinu Plc is a fintech group, including Fiinu Bank, authorised by the Bank of England. The bank will launch the Plugin Overdraft® in the UK, an unbundled overdraft solution without anyone needing to switch banks. Fiinu.
  • Managed sale of IME operations to MBO team (£2m, May 2022).
  • Executed Reverse Takeover of Fiinu (£37.5m, June 2022) and fundraising (£8m, June 2022
Apr 2017 - Present

Chief Financial Officer

London, England, GB

  • Conversity enables brands, retailers and telcos to build human connection with their customers online. Our market leading Intelligent Guided Selling (IGS) platform provides brands and retailers with a turnkey solution.
  • Secured £700k Corona Business Interruption Loan and raised £100k from existing shareholders (Dec 2020).
  • Raised £600k from existing investors and £500k in debt finance (Jan 2022).
  • Oversaw all finance functions, including Human Resources and back-office IT systems.
Mar 2020 - Nov 2022

Managing Director

Henley-on-Thames, Oxon, GB

Provider of capital markets and corporate finance consultancy services to banks, brokerages and corporate clients in the UK small-mid cap sector.

Jun 2016 - Apr 2022

Corporate Finance Director

London, GB

Transaction ighlightso Lead Adviser to Falcon Acquisitions Limited – Standard Listing RTO (Mar 2017)

Jun 2016 - Oct 2020

Corporate Finance Director

London, GB

London based Shard Capital is an independent financial services company offering a full range of broking, asset management and corporate capital services. Shard meets the diverse needs of companies and investors by leading the way in navigating the new world of global finance. Transaction highlightso Lead Adviser to Path Investments plc – Standard Listing.

Sep 2016 - Feb 2020

Director, Corporate Finance (M&A, Plc Advisory)

London, GB

As a member of the PLC M&A team our typical role is to provide advisory services in relation to:i) Takeover offers,ii) The Rule 3 advisor role required under the Takeover Code,iii) The Sponsor role under the Listing Rules, and iv) Strategic advice, fairness opinions and related M&A work for public companies.Transaction Highlightso Main Market Sponsor to.

Jul 2014 - Apr 2016

Managing Director

Henley-on-Thames, Oxon, GB

Mantle Corporate Finance is focused on the provision of professional independent corporate finance advice to the junior mining sector.As an independent service provider, Mantle Corporate Finance is able to offer unbiased transaction advice and assistance to junior mining companies who are looking at a range of financing opportunities and solutions.We.

May 2013 - Jun 2014

Director, Corporate Finance

Fox-Davies Capital

Fox Davies Capital is an institutional broking house which specialises in raising equity finance for natural resources companies. Since 2005 we have raised over $1 billion for our clients, with a significant proportion coming from overseas investors, and have been involved in over 75 transactions, the majority of which have been either IPOs or secondary.

Sep 2010 - Jun 2014

Corporate Finance - Director

London, City Of London, GB

Daniel Stewart & Co is an investment bank offering both corporate advisory and institutional stockbroking services and focusing on small and mid-size companies. Our philosophy is that we will succeed only if our clients' requirements are clearly understood and met in a professional and timely fashion. The full range of services we offer includes.

Jan 2008 - Oct 2010

Corporate Finance Associate Director

GB

Transactionso Main Market Sponsor and AIM Nominated Adviser for significant fundraising and acquisition projects (2004-2007)

2004 - 2007 ~3 yrs
2 education records

Simon Leathers education

Beng (Hons) – Manufacturing Engineering & Management

University Of Nottingham

Education record

Bradfield College
FAQ

Frequently asked questions about Simon Leathers

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

What company does Simon Leathers work for?

Simon Leathers works for ONI.

What is Simon Leathers's role at ONI?

Simon Leathers is listed as Finance Director at ONI at ONI.

What is Simon Leathers's email address?

AeroLeads has found 1 work email signal at @fox-davies.com for Simon Leathers at ONI.

Where is Simon Leathers based?

Simon Leathers is based in Henley-On-Thames, England, United Kingdom while working with ONI.

What companies has Simon Leathers worked for?

Simon Leathers has worked for Oni, Fiinu, Conversity, Mantle Corporate Finance Limited, and Above Wealth.

How can I contact Simon Leathers?

You can use AeroLeads to view verified contact signals for Simon Leathers at ONI, including work email, phone, and LinkedIn data when available.

What schools did Simon Leathers attend?

Simon Leathers holds Beng (Hons) – Manufacturing Engineering & Management from University Of Nottingham.

What skills is Simon Leathers known for?

Simon Leathers is listed with skills including Corporate Finance, Ipo, Investment Banking, Mergers And Acquisitions, Equities, Due Diligence, Mining, and Investor Relations.

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