DataServ empowers finance and accounting teams to succeed by automating Accounts Payable

Founded in 1994 by businesspeople that happen to be developers,
DataServ was created to change the way software is delivered.

“Back then you had two choices: Off the shelf and custom software. Each on its own, just didn’t work. We were seeing it fail time and time again. Then one day, I read a startling statistic in The Standish Group’s Chaos Report...Traditional software had an 85% failure rate. It just wasn’t delivering what companies were asking for. So, we thought, there must be a better way. We took the best parts of each and developed Accounts Payable SaaS.”
– Jeff Haller, Co-Founder, CEO, CRO

To this day, we offer unparalleled Accounts Payable Automation solutions. Our SaaS platform was built from scratch – not bolted together from acquisitions – with input from tens of thousands of users over the past 27 years. We offer clients the best of both worlds: a solution that's 80% industry standard and 20% tailored; delivered with service, process knowledge, and a satisfaction guarantee. Our incredible, long term relationships with clients demonstrate one of our core tenets: evolution. We have continually evolved to accommodate the changing needs of our clients and the Accounts Payable industry as a whole.

From our inception we created solutions that are:

  1. Delivered as a service
  2. Tailored to your business
  3. Valuable to the productivity and profitability of your business
  4. Pragmatic, sustainable, and affordable for real-world process automation challenges

We took the best parts of each solution and added in our own exceptional features and benefits.

DataServ vs. off-the-shelf and custom software diagram


DataServ by the Numbers


Stats-27-years Stats-boxes-two Stats-100 percent Stats-boxes-two Stats-71 percent Stats-boxes-two Stats-99 percent

Stats-10000-automated-processes Stats-boxes-two Stats-Docs-processed-per-month Stats-boxes-two Stats-50-countries Stats-boxes-two Stats-5-15-dollars-ROI

Mission, Vision, & Values

Sure, our mission, vision, and value statements are on our walls and in our employee handbooks, but they’re more than that. We live them every day. They are the guiding force to how we think and behave, all for the betterment of our clients, our co-workers, and our community.


DataServ automates global B2B transaction processes delivering tailored SaaS solutions and knockout services to create trusted relationships.


We will simplify the worlds B2B transactions, bring respect to your team, insights to your leadership and control to your organization.

  • Innovation – Evolution vs. Revolution
  • Commitment – 10 Year Rule
  • Collaboration – Best Practices
  • Accountability – We Deliver
  • Simplicity – Powerfully Simple
  • Transparent Nonpartisan Meritocracy
  • Having Fun, Being Creative while Getting It Done

The People That Power the Products

Our Leadership Team

Jeff Haller

Jeff Haller


Jeff has been building companies and fueling his entrepreneurial spirit for more than two decades. His expertise spans several industries, including consulting, information technology, and telecom — all of which led to the founding of DataServ in 1994. Although the term had not been developed yet, DataServ was the first Software as a Service (SaaS) provider of document and process automation. Jeff has led the company through many growth phases and at least two recessions – all while successfully building and maintaining strong client relationships. He is frequently a speaker at AP and Shared Services industry events. Jeff is the former board president of the Foster & Adoptive Care Coalition, which is focused on eliminating the time kids spend in foster care by quickly finding them homes.

Kathi Haller, CPA

Kathi Haller, CPA


With more than 20 years of leadership experience, degrees in both accounting and IT, and deep expertise in software development, Kathi shapes our product vision. Prior to DataServ, Kathi spent 10 years in Deloitte’s audit practice, where she served several Fortune 500 clients as a CPA. This is where she gained an in-depth understanding of the AP transaction cycles. Her passion, integrity, and fairness have led DataServ to solid profitability, excellent client relationships, and a strong team, which are our most valuable assets. Kathi has been recognized on the list of Most Influential Business Women in St. Louis. She was formerly on the governing board for the Foster & Adoptive Care Coalition, the finance committee at Forsyth School, and currently serves on the marketing committee of The St. Michael School of Clayton.

Drew Gillow

Drew Gillow


With vast technical knowledge, strong leadership skills, and more than 20 years of supply chain technology experience, Drew is dedicated to ensuring technology investments keep pace with a company’s ever-evolving operational needs. Previously at Monsanto, Drew served in various IT roles during his 20-year tenure. He has managed projects in excess of $20 million and has earned industry awards, including AgGateway’s Ron Storms Memorial Award for lifetime contributions to electronic commerce in the agri-business industry. A graduate of Washington University in St. Louis, Drew holds an MBA and degrees in computer science, electrical engineering, and systems engineering. When he’s not spending time with his wife, four children and dogs, Drew enjoys rehabbing houses and traveling.

Scott Travis, APPSC

Scott Travis, APPSC


As Director of Sales & Marketing, Scott leads our Sales, Marketing, and Business Development teams in achieving company growth by helping clients solve their problems and achieve their goals. Scott challenges the status quo and uses a consultative approach to understand a client's current state and guide them on what the future could hold. Prior to DataServ, Scott held several senior executive roles building sales, marketing and client success teams for technology companies with a focus on enterprise SaaS and related services. Scott has served in startups to Fortune 500 sized companies with a passion for scaling early to mid-stage companies. Scott holds a degree in Marketing from the University of Iowa and has earned numerous technology & professional development certifications throughout his career. Outside of work, Scott enjoys watching his sons compete in sports, spending time with family and friends, and spoiling his dog Cooper.