We take pride in being "Trusted Advisors" having both long-term and multi-generational client relationships. Starting in the traditions that began over thirty years ago the J.D. Gilbert & Co., CPAs tax, accounting, and audit division is now Walker Ostrowski Williams CPAs. The foundation of our firm's core values continue to build on honesty, integrity, and quality; and we are committed to providing our clients with the best possible service. We measure our success not by the number of clients we serve, but how well we serve our clients.

Mark A. Ostrowski is currently an advisor to the R.L. Schreiber, Inc. Board of Directors, 2nd & 3rd generation Schreiber Family members, Schreiber Crown Holdings, and to management of R.L. Schreiber, Inc. For over 19 years Mark has and continues to serve many roles as a long term multi-generational trusted family business advisor. Operating under the direction and authorization of the Board of Directors as an owner advocate and trusted advisor, Mark A. Ostrowski's focus in on adding value by facilitating and assisting the owners, BOD, and management in monitoring performance, challenging the plan, progress, and process with the best interest of the owners in mind; such roles also included serving as R.L. Schreiber's interim CEO enabling the Schreiber Family and BOD to conduct a successful nationwide search.