• Slide One
    Welcome to the Marengo Union Chamber of Commerce
  • Slide Two
  • Welcome to the Marengo-Union Chamber of Commerce


Upcoming Events

 Queen of Hearts at Trio Grille 

February 20, 2024 -Drawing – $5,048.00

 PLUS Ticket Sales 

Tickets available at: 

The Chamber Office, Cafe 20, Joe’s Place,

StoneBaker’s Pizza 


Watch the drawing LIVE via our FaceBook page on Tuesday evenings at 7pm 


Need to contact us?

email: [email protected]

Phone: 815-568-6680 – After hours #  779-901-8101

FAX # 815-568-7257

Office Hours

Monday through Thursday 8:30am-2:30pm  ~ Friday – By Appointment

Like and follow us on Facebook and Instagram !!




Hometown Hero Banners – Now accepting applications

Click here to download form:  2024 HTH






February 2024


Click here to download:  February 2024



click here to download: December 2023

Click here to download:  November 2023

Click here to download: October 2023

Click here to download:  September 2023

Click here to download: August 2023
















Casey’s Grand Opening & Ribbon Cutting – Friday, October 7, 2022





Ribbon Cutting ~ Jane’s on State ~ Saturday, November 20, 2021






Ribbon Cutting ~ Wholesome Petz ~ November 7, 2020




Ribbon Cutting ~ D5 Ranges Marengo ~ October 17, 2020




Ribbon Cutting – Flatlander Market – March 6, 2020




Ribbon Cutting – Armanetti Wine & Spirits – December 7, 2019



Ribbon Cutting & Open House – HyperStitch – October 1, 2019





Grand Opening & Ribbon Cutting – W.A.R. Performance 

August 24, 2019  



Grand Opening & Ribbon Cutting – Century 21 – New Heritage 

July 11, 2019


2023 State of the Community Breakfast



The 2023 State of the Community Breakfast was held on Thursday, February 2, 2023 at the Marengo Park District in the Nature Center Room.  Pictured Left to right: John Koziol, Mayor – City of Marengo, Marty Mohr – Marengo Park District, Colleen Helfers – Executive Director – Marengo Union Chamber of Commerce, Tim Sebastian – Board Chairman – Marengo Union Chamber of Commerce, Jim McConoughy – Executive Director – McHenry County Economic Development Corp., Patrick Kenneally – McHenry County State’s Attorney and Dave Syverson – Senator, Illinois 35th District.


2020 State of the Community Breakfast 


The guest speakers for the 2020 State of the Community Breakfast, which was held, Wednesday, January 29, 2020 at Trio Grille.

Left to right: Tim Sebastian- Board of Directors Chairman, Marengo-Union Chamber of Commerce, Colleen Helfers – Executive Director, Marengo-Union Chamber of Commerce; Jim McConoughey – President, McHenry County Economic Development Corp.; Jack Franks-McHenry County Board Chairman; Josh Blakemore-City of Marengo Administrator And John Koziol – City of Marengo Mayor.  



Direct Sellers – Independent Sales Consultants

Chamber Membership is available for you !  Enjoy the benefits of the Chamber with a Direct Sellers Membership created just for you !

Click here for more information:   Direct Sellers Membership



Welcome New Members

Our Newest Members

Karsten’s Tire & Auto

State Rep. Joe Sosnowski

M/I Homes of Chicago, LLC

Hatha Good Day Yoga & Wellness

Compassionate Choice Home Help LLC.

Ryan Homes – Railway Estates

Dino’s Restaurant 

Benassi Family Dentistry

Mind at Ease Sitting Services

Senator Dave Syverson

Jane’s on State






Member IACCE




News & Updates

The 2019 Chamber community Guide is now available at the Chamber office.

Remember to support those businesses that advertised.

It was mailed to all households, businesses, and P.O. Boxes in the 60152 and 60180 zip codes.

click this link to access the community guide