About Us

Kamex History

Our Story

Kamadulski Excavating & Grading Co, Inc. was founded in 1958 by Leo and Fannie Kamadulski. The Kamadulski family owned and operated the company until Leo and Fannie’s son, David Kamadulski, sold the company in 2019. The mission of the Kamadulski family was to deliver quality service to their customers at a fair price. Ryan Fischer and Mark Crays joined the company in 2013. Ryan and Mark purchased stock in the company in 2015 and completed the purchase in 2019. In 2021, the current ownership group rebranded the company as KAMEX.

KAMEX has become an industry leader in the St. Louis Metro East. The company continues to expand into new sectors, including Commercial Warehouse Infrastructure, Environmental Landfill Cell Construction, Federal USACE Projects, Heavy Highway, Large Scale Transmission Water & Sewer Mains, Industrial, Mechanical, and Residential Subdivisions.

Strong values of hard work and lasting relationships continue to define our culture. We work together as a team, supporting and encouraging each other. We have created an environment that values success in terms of relationships and results. Our mission is to offer our customers a quality experience and our staff an outstanding place to work and build their own legacy.

Kamex for a cause logo

KAMEX for a Cause

KAMEX FOR A CAUSE exists to strengthen our community and to improve the lives of those who live and work in the areas where we do business. We strive to get involved to support charitable efforts to provide a meaningful impact by supplying financial assets in our community. Over the course of the last few years, KAMEX has donated to the following groups: Big Brothers Big Sisters, Black Widows Softball, Pedal The Cause, Party at the Beach – Village of Pontoon Beach, Alton/Wood River Sportsman Club, CF Gateway Foundation, Gillespie Bass Club, Gillespie Masonic Lodge, and the Cystic Fibrosis Foundation.

At KAMEX, we feel that it is important to give back to our community and support the community and family members who make us a successful and striving business.

Homecoming parade
Black-Widows softball team

The Alton-Wood River Sportsmen’s Club

The Alton-Wood River Sportsmen’s Club is located in Godfrey, IL and provides a clean comfortable facility where members, family and guests may affordably engage in activities in a wholesome environment which encourages social activities and friendly competition. We give families equal opportunities to gain personal skills through participation in fishing, hunting and other outdoor activities.

Cystic Fibrosis Foundation Logo

Cystic Fibrosis Foundation

The Cystic Fibrosis Foundation is a 501 non-profit organization in the United States established to provide the means to cure cystic fibrosis and ensure that those living with CF live long and productive lives.

Pedal The Cause Logo

Pedal the Cause

OUR MISSION is to provide critical funding for cancer research at Siteman Cancer Center and Siteman Kids at St. Louis Children’s Hospital through our annual cycling challenge. It is our hope that research funded by Pedal the Cause will ultimately lead to a cure for cancer.

Founded in 2009 with the bold model of using 100% of public donations to fund world-class cancer research, Pedal the Cause has quickly become the gateway to curing cancer – all cancers, for everyone. In this period of diminished federal funding where support typically gets funneled to already proven concepts, many potential new ideas are not deemed eligible. Pedal the Cause donations “seed” best-in-breed ideas at our beneficiaries to allow the cultivation of proof of concept and critical data. These seeded projects often turn into groundbreaking results that lead to new treatments and cures, preventions, and early detection diagnostics. Additionally, donations from Pedal the Cause make a positive economic impact in the St. Louis community as stronger research funding will continue to support this high profile and critically important segment of the St. Louis economy.

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Big Brothers/Big Sisters of America

Your financial support helps us provide our programs and services nationally and in your local community—so we can develop more college grads, community leaders, and entrepreneurs.

Your financial support helps us recruit new Big Brother and Big Sister volunteers, cover the costs of background checks, while ensuring trained professionals match Littles to responsible Bigs enable ongoing supervision and relationship support for every Big. Little and Little’s family provide cultural and social activities to enrich the opportunities for children.

Pedal The Cause Logo

Polar Plunge

Each year, the Polar Plunge brings together thousands of warm-hearted individuals from across the state.  It’s a great way for everyone – individuals, organizations and businesses – to support Special Olympics Illinois.  All funds raised go to provide programing and events for more than 23,100 traditional athletes and 13,000 Young Athletes participating in Illinois.

Memberships & Affiliations

Local 397 has had a good working relationship with Kamadulski Excavating for decades. They keep local people on local jobs and they know the direction of the future.

Bill Traylor, Business Manager
Local 397

My experience with Kamadulski Excavating over the past 10 years is that they are always fair and very professional. The company is made up of quality people from the top down. All our projects together have run smoothly and completed on time and always look forward to working with them. 5- Stars…

Dave Lange, Project Manager
Pyramid Electrical Contractors, Inc.

The relationship between Local 360 and Kamadulski Excavating has been beneficial from the beginning. Local 360 appreciates the open communication and Kamadulski’s willingness to hire members of our hall. We have worked effortlessly with owners Mark Crays and Ryan Fischer to create an efficient and effective workforce to handle manpower needs for projects pertaining to our work.

Donald DeGonia, Business Manager
United Association of Plumbers & Gasfitters

Kamadulski Excavating has completed over ten million square feet of Cross Dock Tilt-up Warehouse Construction with Contegra. When it comes to moving dirt or putting pipe in the ground with a compressed schedule, these guys are second to none! Their final product always speaks for itself. I am pleased to endorse Kamadulski and their future endeavors.

Eric Gowin, Founder / CEO
Contegra Construction

Kamadulski has successfully completed a number of projects for the Wood River Drainage and Levee District. From million dollar contracts to small work orders, the Kamadulski management team provides clients with the same customer care from project conception to project completion. They are one of the Districts go-to contractors.

Kevin M. Williams, Executive Director
Wood River Drainage and Levee District

Kamadulski completed their first job for the Village of Roxana in 1996. Since that time, Kamadulski has performed over $ 5.1 million dollars worth of surface and sub-surface work for Roxana. Whether in the role as General Contractor or Sub-Contractor, the Kamadulski Group is always lead from the top down.

Marty Reynolds, Mayor
Village of Roxana

Kamadulski Excavating and Grading has been great local resource for the City. Their knowledge and experience greatly helped out during the construction of the City’s Ridgeview Road Regional Lift Station project. In addition, they have been a reliable partner on several infrastructure projects throughout the City.

Ryan Zwijack, Engineer
City of Edwardsville

The Kamadulski jobsites are typically a challenge for mobilization and setup of our cranes, but their managers and field crews always take the time to listen to our requirements and implement the necessary site preparations before our arrival. This translates to a safer and more efficient time on the job for us, which is beneficial to all involved. It’s always an honor to have the opportunity to work with the professionals at Kamadulski.

Seth Malcolm, General Manager & Vice President of Sales
Bollmeier Crane

The City of Wood River and Kamadulski have partnered on many projects over the years. ”They are professional and deliver a quality project. It is great to have a company like Kamadulski to call on in the area!”

Steve Palen, Director of Public Services
City of Wood River

“Over the past few years, I have worked with Mark Crays and Kamadulski on numerous projects involving mass earth grading, site preparation and utility installation. I have found the staff of Kamadulski to be very knowledgeable, professional, and cooperative and to have a good attention to detail. The company takes great pride in their work and it shows with the delivery of the finished product. I would recommend Kamadulski Excavating and Grading to you without any hesitation.”

Justin J. Venvertloh, CFM Branch Manager

“Over the past several years, I’ve been working with Mark Crays and Ryan Fisher towards their goal of expanding the existing Kamadulski Excavating into KAMEX. As Business Manager of Operating Engineers local 520, I look forward to continuing to build on the strong working relationship we have developed. IUOE Local 520 is proud to be part of the KAMEX commitment to putting the best trained operators on their job sites. They understand this quality Labor is a key factor in delivering projects on time and under budget. KAMEX has proven to be a great partner in combating the everyday struggles this industry bears.”

Mark Johnson, Business Manager
International Union of Operating Engineers Local 520