John F. Syburg

Blackthorne Partners Ltd. (Blackthorne Partners) is a private equity firm founded by John F. Syburg and Mark Robert Zellmer in 2006. The firm is headquartered in Mequon, Wisconsin.

Managecore LLC provides SAP and IT managed services. It specializes in cloud / hosting services, project services and disaster recovery. The company was founded by Michael Haase and is headquartered in Franklin, WI.

Schaefer Brush Manufacturing LLC manufactures industrial brushes and brush systems. It's products include accessories, channel and beam sweeps, chimney brushes, cylinder brushes, fitting, and tube brushes. The company was founded in 1905 and is headquartered in Waukesha, WI.

Berlon Industries LLC manufactures buckets and attachments for skid loaders, telehandlers, and compact utility tractors. Its products include compact tractor, snow and light mat, scrap bucket, bag buster, tilt tach, tooth bars, rake tooth, bolt on cutting edge, hoses and couplers, grapple, bale handler, brush cutter, log splitter, caution tape, weight kits and skidsteer locks. The company was founded in 1937 and is headquartered in Hustisford, WI.

ACTS Community Development Corp. provides one-on-one and online HUD-approved homebuyer and financial counseling to help low-income families become ready to buy homes for owner occupancy in Beloit. As a real estate brokerage, ACTS represents families in the purchase of homes and helps them plan and execute home rehabilitation, with a focus on reclaiming vacant foreclosures. ACTS' affiliated nonprofit partner, ACTS Lending, Inc., provides mortgage loans for rehabilitation projects. ACTS supports families to rehabilitate formerly vacant and vandalized properties, helping families turn a challenged property into a stable home. ACTS acquires single-family and duplex properties from various sources and sells them to families and individuals with low-to-moderate income who have prepared for homeownership.