Where Precision Meets Partnership

Accurate numbers. Clear strategy. A CPA you can count on.

DMO Accounting LLC helps individuals and small business owners, including HVAC companies, plumbers, local service providers, and families who want clarity, confidence, and a long-term financial partner.

I’m Derek Orendorff, CPA and founder of DMO Accounting LLC. I believe every successful financial decision starts with two things: accurate numbers and a dependable partner. I combine precise, cloud-based accounting systems with personal, one-on-one service that puts your goals first.

Based in Illinois and proudly serving client across Central Illinois, Quad Cities, Cedar Rapids, Chattanooga, TN, Dallas-Fort Worth, and all virtual clients. Cloud-based systems allow me to work with business owners and families anywhere.

Here is how I combine modern tools with personal service to give you the best of both worlds:

  • Cloud-based CPA firm for speed, accuracy, and convenience

  • Individual tax preparation for individuals and families, delivered with a clear, streamlined experience

  • Job costing and accounting setup for true job profitability

  • Cash flow planning and seasonal budgeting to stay profitable year-round

  • KPI dashboards and margin reviews to track what really matters

  • Startup support with affordable setup and guidance with the goal of building a long-term partnership

  • Payroll systems that keep crews paid and compliant

  • Business tax support for S-Corps, partnerships, and sole proprietors


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Email Me Your Questions
CPA for HVAC, Plumbers, and trades serving the Quad Cities, Central Illinois, and DFW

3 Steps to Get Started

Step 1 - Book Your Introductory Call

Whether you are an individual or a business owner, we will start with a simple conversation. You can share your situation, goals, and questions. I will listen first, then explain exactly how I can help.

Step 2 - Get a Customized Plan

You will receive a clear proposal with transparent pricing, tailored to what you need. This may include individual tax preparation, business accounting, payroll, or year-round support built around your goals.

Step 3 - Start With Confidence

We will get everything set up the right way from day one. Your documents organized, your systems connected, and your questions answered: so you can move forward with clarity and confidence.

Getting started is simple: one conversation is all it takes to put precision, partnership, and first-class accounting on your side.

Book Your Introductory Call

Why Choose DMO Accounting LLC

  • Individual and Small-Business Focused - We work with individuals, families, contractors, service businesses, startups, and family-owned companies who want accurate numbers, proactive guidance, and a dependable long-term financial partner.

  • Timely, Reliable Communication - When you have questions about your taxes, documents, payroll, or cash flow, you deserve clear answers without long delays. I prioritize responsiveness so you always know what is happening and what comes next.

  • On-Time, Every Time - Deadlines matter. Your filings, reports, and deliverables are completed when promised, so you can move forward with confidence and peace of mind.

  • Proven CPA Expertise - We bring years of professional experience directly to the financial challenges that individuals, families, and small businesses face every day.

  • Tailored, Practical Solutions - Every situation is unique. I design accounting systems, tax preparation processes, payroll workflows, and financial strategies around how you actually operate. The goal is simple: provide clarity, strengthen cash flow, reduce stress, and help you make confident decisions year-round.

Book Your Introductory Call
CPA located in East Peoria, IL, Morton, IL, Peoria, IL, Geneseo, IL, Moline, IL

Our Services

  • Trades CPA setting up QuickBooks job costing and payroll for HVAC contractors, plumbers, electricians, and remodelers in East Peoria, IL, Morton, IL, Moline, IL, Quad Cities, and DFW

    Accounting — Your Business Financial Foundation

    Strong books are the backbone of every profitable business: whether you run a crew, a storefront, or a growing office. We set up job costing in QuickBooks or Xero, streamline payroll for teams, and deliver reports you can actually use. With clear, accurate numbers, you’ll see which projects make money, where margins are slipping, and how to keep your business moving forward.

  • Advisory services for trades businesses: growth planning for HVAC companies, plumbing firms, and electrical contractors including cash flow forecasting and succession planning. in East Peoria, IL, Morton, IL, Peoria, IL, Moline, Quad Cities, and DFW

    Advisory — Strategies That Drive Growth

    Running a small business means juggling people, projects, and growth while planning for the future. We help you scale with confidence through KPI dashboards, margin tracking, and cash flow planning. Whether you’re adding your first truck, expanding your storefront, or preparing for succession, we give you the clarity and strategy to make every move count.

  • CPA tax planning and compliance designed for family-owned trades: HVAC, plumbing, electrical, and remodeling businesses in East Peoria, IL, Morton, IL, Peoria, IL, Moline, IL, Davenport, IA, Quad Cities, and DFW

    Tax Support — Compliance Without the Stress

    Business owners deserve more than a last-minute tax bill. We provide proactive planning and practical strategies that help contractors, trades professionals, service companies, and family-owned businesses stay compliant and avoid surprises.

    Individuals and families receive the same level of clarity and care. Our streamlined tax preparation process makes filing simple, organized, and stress-free, so you always know what to expect.

Contact Us

Interested in working together? Please book a free consultation and we will be in touch shortly. We can’t wait to hear from you!