BIG FIRM EXPERTISE, SMALL FIRM CARE. KLCA is an accounting & management consulting company based out of Oakville, Ontario, Canada. It is led by highly-experienced Chartered Professional Accountants with backgrounds working for both the “Big 4” CPA firms and within the government's tax auditing department. This unique combination of experience and skill gives our clients access to the expertise of a big firm, but in a highly personalized setting where our senior partners are intimately involved with all clients. Whether it's a personal tax return or assuring the financial statements of a large corporation (and everything in between), we pride ourselves on out obsession to help our clients KEEP as much of what they earn as possible.