About DMS

One of the most important parts of running your business is managing the books. If your finances aren’t in order, your business can suffer. Not only does streamlined bookkeeping help you to manage your business to improve your bottom line, but it also helps to avoid potential legal problems with the IRS.

Our passion is in personalized bookkeeping services with QuickBooks to small businesses. Our drive is derived from our roots in entrepreneurialism: growing up, helping the family’s small painting and cleaning businesses, and supporting family businesses.

We love numbers! Let us help you keep accurate records so you can focus on your skill – doing your good work for your business while we manage your bookkeeping or payroll tasks.

Fast Facts

Founded In


We offer small business financial services to meet your business accounting needs. We are detail-oriented and passionate about numbers.


190 companies

Since 1993, we have served 190 local small businesses bookkeeping, payroll, accounting and business development needs in Wisconsin.

5 Year Growth Rate


Working in multiple industries, we understand business, your “big picture” and focus on your business needs to help you grow, as we grow ourselves.

Mission Statement

We provide quality work at a fair price to local small businesses in Southeastern Wisconsin. Our rewards are building relationships and watching your business grow to become more profitable year after year.

What We Do

We work exclusively with QuickBooks® accounting software to offer bookkeeping, accounting, business development and management services to small businesses in southeastern Wisconsin.

Industries We Serve

Fitness Studios
Yoga Studios
Massage Therapy Clinics
Medical Offices
Real Estate Investors
Internet Retail & Services
Home Health Care
Financial Services

More From Our Clients

Who We Are

Theresa Schwager


Theresa graduated early from Hamilton High School, Milwaukee, WI in Dec. 1975. She worked full-time at various businesses while raising a family with 4 children. Many years later she received her B.A. in Business Management from Alverno College, Milwaukee, WI in 1994. She also carried minors in Market Research and Global Studies.
Theresa is no stranger to the world of entrepreneurialism. Her father owned his own painting and cleaning businesses and she worked for him on large jobs doing detailed painting, specializing in painting decorative wrought iron.
At DMS Theresa is in charge of client management. She is also in charge of all aspects of the client’s Financial Statements and other Monthly and Quarterly reports.
In her spare time she enjoys spending time with her children, grandchildren, great-grandchild, and her dog, Kato. She also enjoys restoring (and repairing) her 1927 Craftsman Bungalow.

Martha Bluett


Martha graduated from Algoma High School, Algoma, WI in 1995. Math and science have always been a passion for her.
She worked various office jobs as a temp until earning her Associate of Science degree in Chemical Technology from MATC in 2002, starting her career in science. She worked full time as a chemical technician while at the same time earning a Bachelor of Science degree in Chemistry from Mount Mary University in 2007 when she was promoted to chemist.
Martha worked in the chemical industry for over a decade, until 2015. She left the lab for health reasons, taking her love of numbers and changing her career path to the financial side of things. Her husband recently started a food truck and she started helping with the books, while pursuing an Associate Degree in Accounting from MATC. She completed her degree in 2017. She honed her accounting skills working for a small CPA office and a local restaurant group before joining the DMS team in 2020.
In her spare time, she enjoys creating her own crochet and counted cross-stitch patterns, gardening, cooking and video games. She also enjoys board game nights with friends and family.


We are a long-standing member of the American Institute of Professional Bookkeepers


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    Diversified Management Services, Inc.

    10520 W. Bluemound Rd., Suite 106
    Milwaukee, WI 53226

    Phone: (414) 231-3702