Source Code and the Long Game
In 1984, when most software companies were frantically building lock-in, AccountMate made an odd bet: ship the source code. Let customers see the engine. Let them modify it. Trust that if the product is good enough to be changed, it's good enough to keep.
Forty years later, David Dierke runs that company. He has been its President and CEO since 2001 - long enough to have watched three major waves of enterprise software disruption wash over the industry while AccountMate stayed stubbornly, deliberately itself. No pivot to a SaaS-only model. No abandonment of the channel. No rebranding exercise. Just the patient accumulation of 125,000 users across manufacturing floors, distribution centers, and service businesses that run on $5M to $500M a year and need software that bends to them rather than the other way around.
Dierke came up through channel sales at a time when the software industry still ran on dealer networks, value-added resellers, and relationships built over conference room lunches. His B.A. in Management from Sonoma State University (class of 1977) landed him in the kind of enterprise software ecosystem where the product is only as good as the people selling it. He worked through Autodesk's dealer channel in the early 1990s, managing Americas dealer sales at a company that was becoming synonymous with design software. The experience wired him for a specific view of how software actually reaches customers.
"The premise of our AccountMate solutions are that they can be used by companies with or without customization."- David Dierke, President & CEO, AccountMate Software Corporation
The SBT Chapter
Before AccountMate, there was SBT Accounting Systems. Dierke joined as a senior executive in 1996 and spent four years building out the company's sales operation. He moved from Director of Sales to VP of Sales to Senior VP of Sales - a progression that tells you something about both the pace of the growth and the appetite for the work. During his tenure, SBT's sales revenue grew 54%. That's not a rounding error. That's a company that learned to sell.
When SBT's parent Softline pivoted its accounting software assets toward AccountMate, Dierke came along as Executive Vice President of Sales. In 2001 he stepped into the CEO role. He hasn't left.
The Customization Doctrine
The line that defines AccountMate under Dierke's leadership is not particularly glamorous on a pitch deck. It goes something like this: businesses are not interchangeable, software should not be either, and the closest thing to a universal solution is software that can be shaped into the right specific one.
This is not a new idea. It was AccountMate's founding idea in 1984. But maintaining it through the SaaS era - when the entire industry orthodoxy shifted toward standardized, cloud-first, "don't touch the code" platforms - required a CEO willing to hold the line against fashionable thinking. Dierke held it.
The result is a product line built for the businesses that everyone else under-serves: the manufacturer running kitting operations who needs a work order management module that actually maps to how the factory floor is organized; the distributor managing multi-warehouse inventory across multiple currencies who can't afford an Oracle implementation but won't accept something that pretends their operations are simpler than they are. AccountMate's source code access lets its 500+ authorized solution providers around the world customize deployments to fit those specifics. The software adapts. The business doesn't have to.
What AccountMate Actually Does
Under Dierke's tenure, AccountMate has expanded from accounting software into a full mid-market ERP stack. The product line now covers the full operational cycle for manufacturers and distributors.
The full module set spans general ledger, accounts payable, accounts receivable, payroll, sales order management, purchase order management, CRM, project management, budgeting, and multi-warehouse inventory with serial number tracking. Sarbanes-Oxley compliance tools are built in. Multi-currency support is standard. The whole thing is designed for businesses that are too complex for QuickBooks and too small to want an SAP implementation.
The Channel-Only Bet
Dierke has never tried to sell AccountMate direct. The product reaches every one of its 125,000+ users through a worldwide network of authorized solution providers - resellers, VARs, and implementation partners who know the industries they serve and the local markets they operate in.
This is a conviction, not a cost-cutting measure. The logic is that mid-market manufacturers and distributors are buying more than software. They're buying an implementation that actually works in their context, training that maps to their process, and ongoing support from someone who understands their business. A central sales team in Petaluma cannot provide that for a food manufacturer in Ohio or a distribution company in Singapore. A network of specialized solution providers can.
The annual Partner Achievement Awards program - which Dierke's team runs - reflects how seriously AccountMate treats those relationships. The President's Award for Outstanding Achievement is not a marketing formality. It is the visible signal of a company that knows its partners are its go-to-market engine.
AccountMate was founded on a radical premise: that customers deserve to see the source code - and to change it. Four decades later, that premise is still the product.YesPress Editorial
Running the Long Race
There is a specific kind of discipline required to run a company for 25+ years without either selling it, pivoting it, or letting it drift into irrelevance. The enterprise software landscape is full of cautionary tales: products that got acquired and killed, platforms that went SaaS-only and lost their core users, companies that chased the enterprise and forgot the mid-market. AccountMate, under Dierke, has done none of these things.
The company is Microsoft Gold Certified. It has appeared in Accounting Today's Top 100 Products list. CPA Software News gave it 4.5 stars in its mid-market accounting survey. Accounting Software Advisor ranked it second in the mid-market category. These are industry acknowledgments that come from consistently doing the work, not from a single product launch or a well-timed funding round.
Dierke runs a company of 58 people with approximately $21 million in annual revenue - numbers that make AccountMate a small company by Silicon Valley standards and a significant institution by the standards of the mid-market ERP industry. No outside funding. No visible exit strategy. Just the accumulation of product iterations, partner relationships, and customer trust across four decades of business software history.
What the Record Shows
- Growth Drove 54% sales revenue growth at SBT Accounting Systems during his tenure as senior executive
- Scale Grew AccountMate to 125,000+ users worldwide across manufacturing, distribution, and services sectors
- Product Expanded AccountMate from accounting software into a full mid-market ERP platform with manufacturing, CRM, and cloud deployment
- Industry Maintained consistent recognition in Accounting Today's Top 100 Products and #2 ranking from Accounting Software Advisor
- Channel Built and sustained a global network of 500+ authorized solution providers as AccountMate's sole distribution model
- Tenure Over 25 consecutive years as President and CEO - one of the longest-serving CEOs in independent mid-market ERP