Trusted, Experienced Accountants in Oswego, IL

At Dugan + Lopatka, our Certified Public Accountants work directly with your management team. As a true partner, we help you navigate change moments, reduce your tax burden, and make data-driven decisions with confidence.

Backed by decades of experience, our team has a diverse range of skills and specialized knowledge in your industry. We leverage that knowledge, along with state-of-the-art tools and a full range of capabilities, to help your business gain a competitive advantage and navigate a complex business world.

Today, we continue to serve clients in the Northwestern suburb of Oswego and across the Chicagoland region, providing services like business advisory, strategic planning, tax preparation and compliance, and a variety of specialized solutions. We also provide outsourced accounting, which allows clients to choose from a range of services, from basic bookkeeping to virtual CFO and outsourced Controller.

Keep scrolling to explore our core services and learn why D+L is a trusted partner for thousands of Chicagoland businesses.

Decades of Experience, Thousands of Clients Served

Over nearly 50 years of service, D+L has partnered with Chicagoland businesses and nonprofit organizations across a wide range of industries. Our team has served more than 5,000 clients, helping them navigate growth, change and disruption.

Accountants Who Understand Your Industry

With decades of collective experience, our diverse team has specialized skills knowledge in key industries. Our deep understanding of your business, your competitors and the industry climate, we can help you navigate nuanced, complex challenges and gain an edge.

D+L is specialized in a wide range of Chicagoland’s key industries, including:

  • Educational Services
  • Retail Trade
  • Manufacturing
  • Health Care and Social Assistance
  • Accommodation and Food Services

To learn more about the industries we serve and how we bring specialized skills and knowledge to the table, start here.

Our Services, Tailored to Your Business

D+L provides all the financial management services you would expect of a larger firm, with the personalized care and attention to detail you wouldn’t. We don’t believe in a one-size-fits-all approached; instead, we tailor our services to meet your business’ needs.

Select a solution below to learn more about our full range of services offered.

As Your Partner, We’re Here to Make Your Business Even Better

At D+L, our team takes a holistic approach to your business. Working directly with your management, we use our skills and services to help you:

  • Move from reactive to proactive. We help your business anticipated change, make data-driven decisions and implement cohesive strategies.
  • Minimize your tax burden. Leveraging our specialized industry knowledge, we help you pursue credits and other opportunities, optimize your tax strategy and reduce your burden.
  • Navigate complexity and nuance. From interstate commerce to shifting regulations, we help you approach your business’ toughest challenges with confidence.

Your Business + Personal Finances, All Under One Roof

In addition to serving businesses and nonprofit organizations, we also provide a full range of financial management services for business owners. Partnering with the same firm for all of your financial needs means that you are always working with the same trusted point of contact, while enabling our team to develop a cohesive, optimal tax-savings strategy for you.

What ‘Accounting for What Matters’ Means to Us

Every day, we strive to go beyond the role of a typical accounting firm to be a true partner, providing holistic business support. Our mission is to help you identify and achieve your business goals while preparing your organization for the future.

Oswego Service Area Map

D+L provides financial management services to clients throughout the Chicagoland region, including the Oswego area. We serve businesses and nonprofit organizations in the local zip codes 60503 and 60543, along with all other zip codes in the area.

Let’s Talk about Your Business

Trying to find the right local CPA in Oswego, IL? Get in touch with our team today to learn how we can help you navigate change with confidence and achieve your business goals.