We strive to make a difference to your corporate and personal ambitions, becoming a trusted advisor and your partner for success.

Trusted since 1999

With years of experience across the team, our knowledge and expertise allows us to stay on top of your financial health, providing counsel to aid growth and navigate issues duly and lawfully.

Personable yet professional, our senior advisors remain hands-on to deliver an expert service that exceeds expectation.

  • BSc (Hons) ACCA ATT, Director & Accountant

    Brett has stepped into the role previously held by David Cook, taking responsibility for advising a diverse portfolio of clients across The Cook Partnership. A qualified taxation technician and chartered certified accountant with a degree in Applied Accounting, Brett has worked with hundreds of clients on everything from tax queries to business planning.

    He brings with him a strong track record from BAS Associates Ltd, along with a calm, client-first approach. His wide exposure to real-world business challenges enables him to provide clear, practical guidance – identifying accounting or taxation issues early and recommending improvements to support your financial health.

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  • MCIM MInstLM, Managing Director

    Sian is the Managing Director of The Cook Partnership and plays a hands-on role in shaping the future of the business following its acquisition by BAS Associates Ltd. With a degree in Business and Marketing and a professional accreditation as a business coach, she brings over 15 years of experience advising start-ups, family-run businesses, and established businesses on how to grow with confidence.

    Sian combines strategic thinking with a down-to-earth, practical approach – helping clients identify opportunities, improve performance, and feel more in control of their business journey. As Managing Director of the wider BAS Group of companies, she also connects clients with trusted expertise in finance, operations, legacy and growth planning.

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  • ACA, Client Relationship Director

    Pam oversees our clients’ year-end process, ensuring they are fully compliant with their legal and reporting requirements. Also responsible for the tax affairs of both personal and corporate clients, Pam strives to optimise tax efficiencies.

    Qualifying as a Chartered Accountant in 1993, Pam went on to specialise in Corporate Taxation, passing the Chartered Institute of Taxation examination and is a member of the ICAEW. She spent 13 years working in practice as an Auditor and then Tax Adviser, including six years with one of the ‘Big Four’, KPMG.

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  • BA (Hons), ACA

    Original founding Partner, David Cook, is responsible for advising a diverse portfolio of businesses, and assessing their financial health. His wide exposure to business challenges enables him to provide counsel to clients with potential accounting and taxation issues, and propose improvements.

    David established The Cook Partnership in 1999, and has been a Chartered Accountant and member of the ICAEW since 1993. Prior to setting up his own practice, he worked for five years in industry, gaining experience as a Financial Controller for a large international firm based in London.

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  • All of our team are highly competent users of the accounting and reporting functions in Xero and quickbooks software, working with clients to maintain up-to-date accurate accounting records and assisting them with their quarterly VAT reporting. In addition our team have the following expertise…

    Lindsay Berg – Payroll and accounting software

    Sarah Ulyatt – Payroll and company secretarial services

    Claire Yurman – Personal tax

    Arunie Ranaweera – Year-end financial statements and Corporation Tax Return preparation