Lauren Sustek (nee Bartkowski) founded Bartkowski Life Safety in 2010 after working with a General Contractor for several years prior. She brought a new vision to the life safety industry that focused on customer tailored solutions. Lauren has assembled a team of like-minded individuals, and together they have grown Bartkowski into an industry leader.

When Lauren is not working, or strategizing her next venture, she lives for spending time with her husband , her two lovely daughters, and their beautiful son.  She enjoys attending sports games, concerts, and any event that is craft, art, food or wine related. 

Kris joined the Bartkowski team in 2013. Prior to that he worked as a Stationary Engineer for 15 years and remains a member of Operating Engineers Local 399 to this day. Kris earned his Associate's in Engineering from Tritan College. Kris quickly became an asset to Bartkowski.

When Kris is not working with Bartkowski he enjoys spending time with his wife, two daughters and son, attending sports games (Go Sox!), camping, ‘working’ on his cottage in Door County, and attending concerts.

Bill Nelson (aka the Firestop Remediation Guru) has 21 years of Firestop experience.  Bill has been involved with and led projects that range from high-end residential, to healthcare, to industrial, and everything in between.  Bill is the true example of professionalism and continues to mentor up and coming technicians.  Bill's constant keen eye for detail and unwavering support of BLSC's overall vision positions him as a key asset in our day to day operations.  Bill's spotlight project includes the 250,000 sq ft renovation of the University of Chicago Medicine Center for Care and Discover.

Jinjer joined the Bartkowski team in July 2019. After 30 years of working for a local grocery chain, she decided on a change and landed at BLSC. Her duties include reception, office upkeep, and assisting her fellow associates.

Her many non-work loves include gardening, crocheting, scrap booking, and card making. She also spoils her dogs with daily walks.

Bernie started with BLSC in October 2021 bringing an array of experience from construction to distribution. He got his start by spearheading the Community Corrections project from blueprints to construction which became a model for Indiana. Bernie also has an MBA, graduating at the top of his class. He is an avid Miami Hurricanes & Chicago Blackhawks fan who enjoys attending games with his wife Frankie and their sons.