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A Dedicated and Responsive Accounting Firm in St. Catharines

Developing accounting, bookkeeping, business, and tax solutions to best meet the needs of your business is a complex task. Rapidly changing industry regulations and ever-evolving tax legislation can leave individuals and business owners facing a host of unexpected complexities that, with the necessary specialized insights, can save precious time and money. Whether you're a business owner, run a professional practice, or operate a business within the service industry, working with a trusted and knowledgeable accounting, business advisory, and tax professional is crucial to ensuring you are maximizing profits while minimizing tax obligations. That's where we come in.

DDL & Co. is a full-service accounting firm located in the heart of St. Catharines that has been delivering exceptional accounting solutions for more than 20 years. Our dedication to approachable, hands-on financial strategies ensures that our clients are confident and comfortable, trusting us to provide the best possible outcomes to meet their unique financial needs.


Highly Experienced

With over 20 years of industry experience, our team of business and tax experts is passionate about delivering high-quality accounting, advisory, and tax solutions to a wide range of industries. Our efficient and collaborative approach allows our trusted experts to provide unique accounting solutions to meet the specific needs of our clients.


Exceptional Customer Care

We care about our clients. We take the time to listen and understand their concerns, then explain the strategies to best meet their goals in easy-to-understand terms. Our team of knowledgeable professionals is committed to providing exceptional customer care. Our hands-on approach assures clients that their accounting, tax, and business advisory needs are in the care of trusted experts.


Passionate Team

We are passionate about accounting and love what we do. Approachable and welcoming, we build long-lasting relationships with our clients, working closely with them to help them understand their business' performance and potential risks. But we are more than just an accounting firm. We are a reliable and attentive business partner.

Providing Quality Accounting, Advisory, and Tax Services to Meet the Unique Needs of Your Business.

The trusted experts at DDL & Co. offer an efficient and collaborative approach, providing unique accounting solutions to meet the specific needs of our clients. We deliver a full range of services, including, Accounting & Assurance, Cloud Bookkeeping, Tax Preparation & Planning, and Strategic Planning & Advisory.

Our knowledgeable and diverse team of experts is committed to providing reliable, high-quality accounting and tax solutions to businesses and individuals. Clients benefit from hands-on, face-to-face attention and a collaborative team approach, guaranteeing unique accounting strategies specific to their needs. In addition, our collaborative approach means we are always current with the latest regulations and legislation, ensuring our clients are compliant.

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High-Quality Business and Tax Advisory for a Wide Range of Industries.

DDL & Co. has a high volume of staff working collaboratively to deliver accurate accounting solutions promptly. As a result, our clients benefit from a team of trusted accounting, advisory, and tax professionals providing unique accounting solutions to meet their specific needs.

We work with a diverse clientele, delivering high-quality strategies to a wide range of industries, including medical, legal, and other professional services firms, as well as construction, automotive, restaurants, land and building development, and technology firms.

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A Passionate and Dedicated Team Helping Businesses Grow

The team of exceptional business and tax experts at DDL & Co. is passionate about providing exceptional customer care. We strive to build long-lasting relationships with our clients, making an effort to get to know them and their businesses. By explaining the best possible strategies to our clients in easy-to-understand terms, we offer a more insightful understanding of their business, allowing clients to recognize future opportunities or potential pitfalls.

We are a valuable partner dedicated to delivering a wide range of services and strategies to meet the specific needs of our clients. We respond quickly and efficiently to inquiries, giving clients peace of mind by knowing their tax, advisory, and accounting complexities are in the hands of dedicated experts.