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Executive Officers


Conall McGonagle (CA Ireland)


Conall is Chief Risk Officer and a Managing Director in KBC Bank USA.

He is a FCA of Chartered Accountants Ireland and holds the following certifications: FRM, CISM, CAMS, CIA, CRMA, CFSA.

Conall studied International Business with French for his undergraduate studies at the National University of Ireland, Galway and did a Master of Accounting degree in the Smurfit Business School in Dublin. He worked in the KPMG Financial Services Audit practice in Dublin for 6 years. During this time, Conall qualified as a Chartered Accountant, worked as a Manager for a few years and spent extended periods working in Chicago and in Luxembourg.

Conall moved to the USA in 2009 and last year became a US Citizen. He lives on Roosevelt Island in New York with his wife and three children. Conall previously served as Secretary as part of the prior executive team.

Chris Easton (CA ANZ)

Vice President

 Chris Easton is the Founder & CEO at Applied Logic Software in Boston.  The firm provides Cloud based Financial, Supply Chain and ERP applications to SMB and Enterprise level companies worldwide. Previously, Chris was at Progress Software where he was responsible for the worldwide marketing strategy and business development for over 2500 channel partners. Prior to this Chris was involved as Managing Director of software companies in both New Zealand and Canada as well as holding Internal Audit and Finance Accounting positions at New Zealand Steel, and IT Strategy within the Noranda Group Canada.

Chris is a CPA and CA with the New Zealand Institute of Chartered Accountants and serves as the current ACAUS CA ANZ Representative. Chris is also an active Angel Investor and member of  Launchpad Ventures the largest angel investing group in the Northeast. Chris previously served as the CA ANZ HI Representative on the ACAUS Board, as well as serving as interim president from January 1st to April 25th 2019. 


Mark Billings (ICAS)


Mark Billings is a Philadelphia based Transaction Advisory Services Director at Pine Hill Group, now part of CFGI, an accounting advisory firm focused on the middle and lower-middle market. Mark provides buy-side and sell-side financial due diligence services to private equity and corporate clients and has performed over 150 engagements for US and International (inbound and outbound) clients ranging from $1 million to $100+ billion in deal value.  Mark is particularly experienced in healthcare and related industries.

Prior to joining Pine Hill Group, Mark spent 14 years at PricewaterhouseCoopers (PwC), initially starting his career in Birmingham, UK, and ultimately leaving as a Director in their Philadelphia, US, Deals practice. 

Mark’s home institute is ICAS, and he graduated in Economics and Economic History from the University of Leicester, UK.

Outside of work, Mark is a board member of World Eye Cancer Hope (, a charity focused on Retinoblastoma, a pediatric eye cancer.  He also enjoys travelling and spending time with his wife and two children in Wayne, PA. 

Sarah Johnson (ICAS)


ICAS HI Representative

Sarah Johnson joined the executive team as secretary on April 25th 2019, with our previous secretary moving into the role of president. Sarah qualified as a Chartered Accountant with the Institute of Chartered Accountants of Scotland (ICAS) in 2009 and currently holds the role of Home Institute Representative for ICAS on the ACAUS board. Sarah previously worked with the ICAS New York Committee as the Events Lead supporting member engagement in the New York area.Sarah trained withEYand spent 11 years with the firm in Newcastle-upon-Tyne in the United Kingdom, Abu Dhabi in the United Arab Emirates, and New York in the United States of America, primarily in the Assurance practice.


Sarah is passionate about applying her finance skills to international development, and undertook a 3 month role as a volunteer accountant with an NGO called Sharana in India in 2011 through Accounting for International Development (AfID); spent 6 months in West Africa in 2014/15 through EY’s not-for-profit Enterprise Growth Services (EGS) program to implement a group finance function for a logistics and transportation company; and worked for 3 months withAcumen, a leading impact investor in New York in 2016 through EY’s Community Impact program. Sarah is currently pursuing a Masters of Public Administration in Development Practice (MPA-DP) at the School of International and Public Affairs (SIPA) at Columbia University in New York, and spent 3 months in Bangladesh in the summer of 2018 researching the impact of climate threats to food security for a Columbia University project.



David Freeman FCA MBCS (ICAEW)

At Large Board Member

Washington DC Metro Chapter President

David Freeman is an Account Manager at RDA Corporation, a privately held company based in Hunt Valley, MD, that develops and integrates custom software solutions for its clients. David has been with RDA since his arrival in the United States in 1995 and served in various management capacities with RDA during this time.

Prior to RDA, David spent sixteen years at Arthur Andersen London office in the firm’s Audit and Business Advisory Practice. After starting out in the audit arena, David spent much of his tenure leading a variety of business and information technology consulting engagements in areas that included computer risk management and IT strategy. As Director of Audit Computer Services, David was also responsible for audit automation.
David is a Fellow of the Institute of Chartered Accountants in England & Wales, having qualified 1982 and is also a Member of the British Computer Society.

David serves as a Washington DC area contact member for ICAEW members and is also President of the DC Metro area Chapter of ACAUS

David lives in Potomac, MD with his wife and two children. 

David Powell FCA (ICAEW)

Executive Director, Past - President

David Powell stepped down from the Board in March 2019 to take on the executive director position. David has been working as an independent consultant including project work for Protiviti. Prior to this until January 2018 he worked with IBM Global Business Services as Global Brand  Manager for IBM's Outsourcing division (Cognitive Process Transformation), based near Boston, MA. He was previously  in a global role as a Finance Leader in the BAO Center of Competence, with responsibility for Finance focused solutions using IBM software assets. David joined Cognos, now part of the IBM Software Group, at the start of 2007, to build a North American specialist services practice for Cognos’s Consolidations software products. 

David has significant experience in Hotel software management and accounting systems, having worked at senior levels at Holiday Inn Worldwide (now Intercontinental in Brussels, Belgium) and Starwood Hotels (Braintree, MA), as well as moving to the USA in 1998 as the worldwide process owner for accounting for JD Edwards (ERP software). 

David was born and raised in Swansea, Wales. He attended Cardiff University and earned a degree in Accounting and Management Studies. He did further professional studies and qualified as a Chartered Accountant with Deloitte Haskins and Sells. David is an FCA of the England & Wales Institute. David also serves as ACAUS' Future Skills expert. Prior to his 3 year term as ACAUS president 2015 - 2018, he served as President of the New England Chapter.


Home Institute Representatives


Ramin Grewal (CPA Canada)

CPA Canada HI Representative

Ramin is based in Seattle and qualified as a CPA Canada member while working as a senior finance analyst for Porter Airlines in Toronto. several years ago made the switch from practice to recruitment. She also holds a B.Com Accounting and Finance from Ryerson University.While in Toronto Ramin moved into recruitment with the Mason Group and in 2017 moved to Seattle to lead on Finance staff recruitment for Robert Half. In early 2019 she then moved to Amazon in Seattle as a lead Finance recruiter for AWS.


Ramin also heads up ACAUS's Seattle chapter. 



Mark Coles, FCA CPA (ICAEW)

ICAEW HI Representative

Mark has over 15 years of experience in corporate and project finance, financial reporting, taxation, financial planning & analysis and financial operations & controls with emerging, middle market and public companies.

Mark is a managing director with Jade Invest. Jade Invest is an independent private markets investment management firm engaged in direct investments, fund sponsorships and Limited Partner advisory services, serving a wide range of international investors, from insurance companies and pension plans to sovereign wealth funds and family offices.

Mark is an active member of the Institute of Chartered Accountants in England & Wales sitting on both the ICAEW Council and ICAEW Board. Mark was elected to the ACAUS Board of Directors in 2001, where he also serves as the ICAEW Representative.


Jayson Poulton, CA (CA ANZ)

CAANZ HI Representative

Jasyon is a Senior Manager with the Commonwealth Bank of Australia, based in New York. He has been with Commonwealth Bank since 2011.

Jayson has also spent considerable time as a CA  ANZ committee member for the UK Overseas Chapter while he was in London. 

As well as being the ACAUS representative to CA ANZ, Jayson is an integral part of the New York Chapter planning committee. 


Claire Iball (CAI)

Chartered Accountants Ireland HI Representative

Claire has spent over 15 years working with Intel, first in Ireland and then at their Portland Oregon headquarters. She has advanced from her first job as a Budgeting and Planning Analyst to now serving as Controller of the Data Center Group. Her team provided key financial input on P&L management, planning, investment prioritization, valuation analysis, influencing and operationalizing strategies, and financial controls.

Her overall focus is on spending money wisely by avoiding investing in projects that will not provide a sufficient ROI, identifying those projects with a high expected return that should be advanced first, and cutting costs. Her team develops robust forecasting models that reveal the impact of various spending alternatives and provide an unbiased basis for data-driven decisions. She is a cross-functional partner proactively supporting business units at all levels. 

Claire is also chapter head for ACAUS’s Portland Oregon chapter. 


Natasha Holbeck CA CPA (SAICA)

SAICA HI Representative

Natasha Holbeck is a New York City based audit and assurance Partner at Deloitte, serving both domestic and multinational clients. Currently in the investment management industry, Natasha also has significant experience in the consumer business and Japanese Services industries.

She has completed an assignment in the Deloitte National Office working in the auditing standards group, where her time was focused on assessing new accounting and auditing standards related to fair value measurements. During this time she also served as the subject matter lead for financial instruments and the National Office liaison for the alternative investments SMR group.

She is a licensed CPA and Chartered Accountant (South Africa). Natasha represents Deloitte on the NY Metro committee of NEW (Network of Executive Women). She is also a member of the AICPA, AWSCPA and NASBA. 


  Large Chapter Presidents

Ryan Clacher CA (SA)

New York Metro Chapter

Ryan is an Associate Director at The Siegfried Group, where he works to create compelling relationships with leading financial executives, serving as a Leadership Advisor, to help them become more successful leaders in their organizations. He is also responsible for partnering with clients on important accounting and finance projects.


Ryan holds a Bachelor of Commerce in Accounting from the University of Cape Town and Honours in Accounting from the University of South Africa. He is a Chartered Accountant and a member of the South African Institute of Chartered Accountants.



Neil Kapur (ICAEW)

Northern California Chapter President

Neil has been in the United States since 1986 and has worked in internal audit for the banking industry.  Worked with Bank of America, Wells Fargo, Union Bank, and Fremont Bank. As an internal auditor Neil specialized in auditing capital markets and wealth management lines of businesses.  Currently doing consulting assignments for financial institutions and credit unions in the Bay area.

Neil articled with a medium sized firm of Chartered Accountants in London and then worked with KPMG supporting their banking clients.  He also worked as a financial controller with several computer companies in London.  Before immigrating to the United States he worked in Saudi Arabia and Germany as a financial administrator and an auditor.

Neil is an avid tennis player and loves living in the San Francisco Bay Area with his wife and enjoying the various restaurants and cuisines the region has to offer. Neil is originally from India and after completing his high schooling there moved to London to study accountancy.


John Weaver (ICAEW)

Southern California Chapter President

John qualified as a CA in Liverpool, England and then joined the Metal Box Ltd. in London. In 1978 he co-founded a music television production company with offices in London, New York and Los Angeles. Clients included Paul McCartney, Stevie Wonder and Michael Jackson. His music videos’ many special effects lead him to a position as head of production at George Lucas’s Industrial Light & Magic.
His experience producing visual effects for major motion pictures enabled John to launch into consulting the Hollywood post-production community, film producers and film studios. His focus was on the strategic, business and financial challenges of transitioning from traditional film techniques into the digital domain.

He is now a financial services advisor based in Southern California with clients throughout the United States. John specializes in alternative methods of funding employee benefits, the formation of closely held insurance companies and the advanced use of life insurance for tax advantaged investment planning.

John is a member of the British Academy of Film and Television Arts and The British American Business Council. He has been a life long player and follower of cricket, football and tennis. John sits on the board of Streetlights, a charity that trains minority, disadvantaged young people to work behind the camera, in movies, television production and commercials. John likes to play piano and practice tai chi chuan.

John lives in Los Angeles with his wife, daughter, two cats and a dog.



Daniel Shafrir (ICAS)

New England Chapter Head

Daniel is an IT Managing Director with CFGI, with over a decade of IT, Service Organization Controls, as well as Governance, Risk, and Compliance experience, consulting clients in a variety of industries. Prior to joining CFGI, he was Director at PwC’s National Office, responsible for designing and developing PwC’s IT audit methodology and tools, and providing technical guidance to teams across the country. Daniel’s expertise includes SOX, IT general controls testing, SOC 1, SOC 2 reports, assisting companies who wish to undergo ISO 27001 certification, and Robotics Process Automation (RPA). He is also passionate about the blockchain industry, cryptocurrencies, and crypto-assets. 

Daniel holds a Bachelor of Engineering degree from the University of St Andrews in the UK, majoring in both electrical engineering and physics (Microelectronics & Photonics). He is a Certified Information Systems Auditor (CISA) as well as a Chartered Accountant from the Institute of Chartered Accountants of Scotland in the UK. Daniel has been serving as the ACAUS New England Chapter president since October 2017.

Geoff Aldridge (ICAEW)

Chicago Chapter President

Geoff is a Managing Director in BDO’s Corporate Tax Practice, and leader of the Chicago inbound tax practice. A commercial international tax professional with over 14 years' experience, he has extensive corporate planning and compliance experience. As his clients’ main point of contact, Geoff also coordinates advice to clients with regard to other areas of U.S. tax reporting (e.g., Forms FinCEN 114, W-8BEN-E, 1099, etc) and other tax services such as sales and use, transfer pricing, R&D credits, etc. 

Geoff’s clients are typically global businesses and he has extensive experience of cross border tax structuring, financing and tax due diligence. In particular, Geoff focuses on assisting foreign owned businesses with their U.S. tax needs.

He is a Chartered Accountant, and holds an undergraduate Degree from the University of Bristol and post-graduate degree from the University of Warwick.

Geoff is a soccer player and fan and lives with his family in Wilmette.

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