| FHIT Hockey | Training center | 1820 Hanley Rd Suite 100 | Mon–Thu 7 AM–6 PM |
| Field of Dreams | Sports complex | 541 Co Rd UU | Fri 8 AM–8 PM |
| Filipiak Insurance Agency, LLC | Insurance agency | 82 Coulee Rd #101 | Mon–Thu 8:30 AM–4:30 PM |
| Finishing Touch Plus | Painting | 1810 Crest View Dr #4c | Fri 8 AM–5 PM |
| First North Marketing | Marketing consultant | 808 Heggen St | Fri 9 AM–5 PM |
| First Presbyterian Church | Presbyterian church | 1901 Vine St | Mon–Thu 8:30 AM–2:30 PM |
| Fischer's Furniture Restoration | Furniture repair shop | 293 Appalousa Ct | Mon–Thu 8 AM–5:30 PM |
| Fit N Fun Games | Game store | 814 Crimson Valley Rd | Mon–Thu 8 AM–8 PM |
| Fit Real Estate Group | Real estate agency | 1615 Maxwell Dr Ste B | Daily Open 24 hours |
| Five Guys | Fast food restaurant | 2181 Badger Dr | Fri 10 AM–10 PM |
| FlexTrades | Employment agency | 230 Monroe St N | Mon–Fri 8 AM–5 PM |
| Forefront Dermatology Hudson, WI | Dermatologist | 1610 Maxwell Dr #210 | Fri 8 AM–4:30 PM |
| Fountain Of Youth Skin Spa | Medical spa | 131 Carmichael Rd | Mon–Sat 9 AM–6 PM |
| Four Seasons Land Surveying | Land surveyor | 848 Willow River Dr | Fri 7 AM–5 PM |
| Frank Steward - State Farm Insurance Agent | Insurance agency | 206 2nd St | Fri 9 AM–3 PM |
| Fresh Harvest | Food bank | Hanley Rd | Mon 10 AM–2 PM |
| G | Music producer | Vine St | Fri Open 24 hours |
| Gallery 77 | Countertop store | 1231 Industrial St #100 | Mon–Fri 9:30 AM–5:30 PM |
| Game Unlimited Hunting Club | Hunting club | 871 County Rd E | Tue–Sat 9 AM–2:30 AM |
| GaMra Composites | Manufacturer | 3000 Harvey St | Mon–Thu 8 AM–5 PM |
| Garage Sale Titans | Store | 592 Outpost Cir Ste B | Thu–Sat 9 AM–3 PM |
| Garden City | Florist | 1800 Ward Ave. | Daily 10 AM–6 PM |
| Gartner Studios Corporate Offices | Research and product development | 721 1st St #201 | Mon–Fri 8 AM–5 PM |
| Gateway Auto Care | Auto repair shop | 1300 Gateway Cir # A | Mon–Fri 8 AM–5 PM |
| Gateway Building LLC | Contractor | 2015 O'Neil Rd | Fri 9 AM–5 PM |
| Gavic Construction Corporation | General contractor | 901 4th St | Fri 8 AM–5 PM |
| Gilbert Insurance Services | Insurance agency | 2910 Enloe St Ste 104 | Mon–Fri 8:30 AM–4 PM |
| Glenbrook Building Supply, Inc. (Showroom, Sales and Administrative Offices) | Building materials supplier | 215 Monroe St N Suite 402 | Mon–Fri 7 AM–4 PM |
| Glenbrook Building Supply, Inc. (Warehouse) | Building materials supplier | 215 Monroe St N Building 5 | Mon–Fri 7 AM–3:30 PM |
| Golden Gumball | Website designer | 502 2nd St Suite 206 | Mon–Tue 9 AM–6 PM |
| Goodwill - Hudson | Thrift store | 2333 Coulee Rd | Mon–Fri 10 AM–8 PM |
| Gordon Drywall Remodeling | Bathroom remodeler | 310 5th St N | Fri 7 AM–5 PM |
| Government Center | County government office | 1101 Carmichael Rd | Mon–Fri 8 AM–4:30 PM |
| Gowey Abstract & Title Company, Inc. | Title company | 625 Commerce Dr #103 | Fri 8:30 AM–4:30 PM |
| Grand Fête | Kitchen supply store | 512 2nd St | Mon–Wed 10 AM–6 PM |
| Great Lakes Market | Gas station | 100 2nd St | Mon–Fri 6 AM–9 PM |