Stephen Williams
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Stephen Williams Email & Phone Number

CFO at Ethical Power at Ethical Power
Location: Greater London, England, United Kingdom 8 work roles 4 schools
1 work email found @sonnedix.com LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email s****@sonnedix.com
LinkedIn Profile matched
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Current company
Role
CFO at Ethical Power
Location
Greater London, England, United Kingdom

Who is Stephen Williams? Overview

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Quick answer

Stephen Williams is listed as CFO at Ethical Power at Ethical Power, based in Greater London, England, United Kingdom. AeroLeads shows a work email signal at sonnedix.com and a matched LinkedIn profile for Stephen Williams.

Stephen Williams previously worked as Chief Financial Officer at Ethical Power and CFO & Executive Vice President at Sonnedix. Stephen Williams holds Aca, Chartered Accountant from Icaew.

Company email context

Email format at Ethical Power

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{first}@sonnedix.com
86% confidence

AeroLeads found 1 current-domain work email signal for Stephen Williams. Compare company email patterns before reaching out.

Profile bio

About Stephen Williams

Hi and thank you for taking time to look at my profile.I am an experienced CFO, NED and Strategic Leader with over twenty years experience growing companies internationally across Europe, Asia and the Americas, within the Renewable Energy, Technology and Telecoms industries. I consider myself skilled at combining financial, legal and IT knowledge with experience across a wide range of commercial operations and international borders.I am able to work through seemingly complex problems and then present the core issues to Boards and other non-financial people in simple, understandable and authoritative ways. I am very focused on the execution of plans & objectives and achieve this through a combination of teamwork and rolling my sleeves up and getting stuck in. I’m proud to have been involved in some of the most exciting and innovative businesses in the UK and around the world over the past two decades. I spent 2 years at Psion, the UK’s leading and most innovative technology company at the time. Through this I was invited to join to Symbian, the joint venture set up to develop software for the new generation of Smartphones. As a member of the executive leadership team I had wide ranging responsibilities as we grew the company to over 1,500 employees worldwide with turnover exceeding £300m. In 2007, I joined the former CEO of Psion and Symbian to help establish AQA63336. This was a pioneering text messaging Q&A service which we grew from its infancy to six years of continuous profits before finally selling to a third party.From 2013 to 2021, I was CFO at Sonnedix, a global Solar Power Producer. This an exciting industry, developing new technologies and returning me to my civil engineering roots. In 2014, an Infrastructure Investment Fund advised by J P Morgan Asset Management took a stake in the business which enabled the Group to grow through M&A and development such that, by the time I left, we had assets of more than €3 billion and a turnover exceeding €500m.After taking a sabbatical, I am now the CFO at Ethical Power, a UK-focussed, renewable energy developer and construction company, helping to lead our growth to a full IPP.

Listed skills include Start Ups, Strategy, Mobile Devices, Telecommunications, and 18 others.

Current workplace

Stephen Williams's current company

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Ethical Power
Ethical Power
CFO at Ethical Power
AeroLeads page
8 roles · 27 years

Stephen Williams work experience

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

Chief Financial Officer

Current

Exeter, GB

Ethical Power is a vertically integrated renewables energy company operating in the UK, across Europe and New Zealand. Following investment from our 50% shareholder, Hive Energy, in 2021, we have embarked on an ambitious growth period which has seen our turnover grow to annual run-rate over over £200m supported by over 250 people. In my role of CFO, I have.

Feb 2022 - Present

Cfo & Executive Vice President

London, England, GB

Sonnedix is an Renewable Energy, Power company focused on Solar PV. It is majority owned by institutional investors advised by J.P. Morgan Asset Management. It designs, builds and then operates solar power plants around the world. The Group was founded in 2009 and now has over 1GW of operating capacity with turnover exceeding EUR400 million and assets.

Dec 2013 - Jun 2021

Interim Finance, Head Of Treasury And Fp&A

GB

Towergate was the UK’s largest independent Insurance brokerage, with turnover exceeding £400m. My initial interim assignment was to provide advice around the treasury function and other aspects of planning & analysis. In December 2012, I took over as Interim Head of Treasury to help manage the company through a sensitive period. In May 2013, we issued a.

Apr 2012 - Oct 2013

Non-Executive Director And Cfo

London, GB

Dynamo is a London based PR and communications agency for Consumer Tech, Social Media, Digital, Gaming and Mobile clients. I helped out as a NED, non-executive Director. It was an exciting start-up, set up by a colleague from my days at AQA63336. It grew at an amazing pace, boasting 30 employees and an impressive client list. In December 2019, Dynamo was.

Apr 2011 - Aug 2013

Cfo

London, UK, GB

AQA63336 was the trading name of IssueBits Ltd and was the company that ran the 63336, text-based Q & A service, running on the premium rate number 63336. We answered over 26 million questions and had six successive, profitable years.In late 2011, we successfully completed the sale of the trade and assets to a third party operator. We then dissolved the.

Oct 2007 - Apr 2012

Evp And Vp Finance & Operations

GB

Symbian was the Joint Venture set up between Psion, Nokia, SonyEricsson, Motorola and Samsung which achieved annual turnover exceeding £250million. In 2009, it was acquired by Nokia.I was a member of the executive management team with board positions at each of the group subsidiaries as well as being Company Secretary to the Supervisory Board.EVP and CIO.

1999 - 2007 ~8 yrs

Financial Controller

Sep 1997 - Feb 1999

Manager

Arthur Andersen
Apr 1990 - Aug 1997
4 education records

Stephen Williams education

Aca, Chartered Accountant

Icaew

B Eng (First), Civ Eng

University Of Birmingham

Act, Corporate Treasury

The Association Of Corporate Treasurers

Ba (2 I), History

Birkbeck, University Of London
FAQ

Frequently asked questions about Stephen Williams

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

What company does Stephen Williams work for?

Stephen Williams works for Ethical Power.

What is Stephen Williams's role at Ethical Power?

Stephen Williams is listed as CFO at Ethical Power at Ethical Power.

What is Stephen Williams's email address?

AeroLeads has found 1 work email signal at @sonnedix.com for Stephen Williams at Ethical Power.

Where is Stephen Williams based?

Stephen Williams is based in Greater London, England, United Kingdom while working with Ethical Power.

What companies has Stephen Williams worked for?

Stephen Williams has worked for Ethical Power, Sonnedix, Towergate Partnership Ltd, Dynamopr, and Aqa 63336.

How can I contact Stephen Williams?

You can use AeroLeads to view verified contact signals for Stephen Williams at Ethical Power, including work email, phone, and LinkedIn data when available.

What schools did Stephen Williams attend?

Stephen Williams holds Aca, Chartered Accountant from Icaew.

What skills is Stephen Williams known for?

Stephen Williams is listed with skills including Start Ups, Strategy, Mobile Devices, Telecommunications, Change Management, Business Strategy, Mobile Technology, and Financial Modeling.

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