Countsy provides Accounting and HR as a service to venture-backed startups. By the unique combination of on-demand CFOs and streamlined technologies, it free its clients from back-office management and empower them to focus on what matters most, delighting customer, perfecting solutions, and accelerating growth. From payroll to board reporting, they get the support they need to be transaction-ready.

It was founded in 2017 and is headquartered in San Francisco, California.



Sand Hill Angels Preferred Partner

Mairtini Ni Dhomhnaill, Founder and CEO


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Mairtini Ni Dhomhnaill, Founder & CEO

Mairtini Ni Dhomhnaill, FCCA, CIA is the founder of Countsy and serves as a Senior Vice President of National Business Outsourcing Solutions at Accretive Solutions, Inc. Mairtini Dhomhnaill leads the National Business Outsourcing Solutions Practice of Accretive Solutions. She has more than twenty years of experience in the fields of accounting and finance. Working with both public and privately held companies, she has provided senior level consulting services ranging from Chief Financial Officer services, strategic fundraising, financial planning, system implementation and project management services. She is a board member for Joint Venture Silicon Valley Network and The National Cleantech Open, a leading business plan competition in the clean tech space. She is a Fellow of The Chartered Association of Certified Accountants and is a Certified Internal Auditor. Mairtini Dhomhnaill graduated from the Galway & Mayo Institute of Technology (GMIT) in Ireland.