| Hudson YMCA | Swimming pool | 2211 Vine St | Mon–Fri 5 AM–9 PM |
| Hudson Youth Hockey Association | Hockey club | 1820 Hanley Rd | Mon–Fri 7 AM–7 PM |
| Hudson-St Croix Little Free Library | Library | 815 St Croix St N | Daily 6 AM–10 PM |
| Hulcher Services | Transportation service | 2300 Willis Miller Dr | Daily Open 24 hours |
| Hutton Roofing Company | Roofing contractor | 947 Sherman Rd Suite 1 | Mon–Fri 8 AM–6 PM |
| IceTime MN LLC | Contractor | 565 Tower Rd | Daily Open 24 hours |
| Iconic Sports Cards | Trading card store | 1920 Crest View Dr Ste 4 | Mon–Fri 11 AM–7 PM |
| ImmunoStar Inc | Laboratory | 573 Co Rd A | Mon–Fri 8 AM–4 PM |
| Imperial Bath | Bathroom remodeler | 701 2nd St Lower Level | Mon–Fri 8 AM–5 PM |
| Imperial Boat Repair | Boat repair shop | 729 Exchange Dr | Mon–Fri 9:30 AM–5 PM |
| Indianhead Glass Inc | Glass & mirror shop | 1300 Gateway Cir b | Mon–Fri 8 AM–4 PM |
| Indue Sales & Service Shipping and Receiving | Flooring contractor | 623 Brakke Dr | Mon–Fri 7 AM–3:30 PM |
| Indue Sales & Services, Inc. | Flooring contractor | 642 Brakke Dr Ste 101 | Fri 8 AM–5 PM |
| Ink N Threadz | Screen printing shop | 1510 Swasey St Ste B | Mon–Thu 9 AM–6 PM |
| Inlow Designs Jewelers | Jewelry designer | 590 High Ridge Dr | Mon–Fri 1 PM–5 PM |
| Innovative Planning Group | Financial consultant | 702 2nd St | Tue–Fri 8 AM–4 PM |
| Insurance Advocate Services LLC | Insurance broker | 901 4th St Suite 135 | Fri 9 AM–5 PM |
| Insurance Brokers of MN, Hudson WI- Korbel Baader Agency | Insurance broker | 1330 Hosford St #1330B | Fri 8:30 AM–4:30 PM |
| Interim HealthCare of Hudson | Home health care service | 625 Commerce Dr Suite 200 | Fri Open 24 hours |
| Interventional Pain Specialists of Wisconsin - Hudson | Pain management physician | 411 Stageline Rd Suite 120 | Mon–Sat 8 AM–4:30 PM |
| Isa Wines Photography, LLC | Wedding photographer | 909 Highlander Trail | Fri 8 AM–5 PM |
| James & Karen Olsen "The Olsen Home Team"-Property Executives Realty | Real estate agent | 125 2nd St Ste C | Mon 9 AM–4:30 PM |
| Jerry's Foods | Grocery store | 2310 Crest View Dr | Daily 5 AM–12 AM |
| Jersey Mike's Subs | Sandwich shop | 2310 Badger Dr | Fri 10 AM–9 PM |
| Jessica Grajeda Designs | Website designer | 367 Krattley Ln | Fri 8 AM–7 PM |
| JH Larson Company | Electrical supply store | 901 O'Keefe Rd | Mon–Fri 7 AM–4:30 PM |
| Joe To Go | Espresso bar | 1800 Coulee Rd | Fri 5:30 AM–3 PM |
| Johnson Home Group - Coldwell Banker Realty | Real estate agency | 2424 Monetary Blvd | Fri 7 AM–10 PM |
| Johnson lawn solutions | Landscaper | 810 Badlands Rd | Mon–Thu 8 AM–6 PM |
| K & C Air Systems Inc | HVAC contractor | 634 Commerce Dr | Fri 7 AM–5:30 PM |
| K9-Playtime Dog Day Care & Boarding | Kennel | 1400 Gateway Cir | Mon–Thu 6 AM–7 PM |
| Kelly St.Aubin - Diamond Lakes Realty LLC | Real estate agent | 516 Edie Ct | Sun 8 AM–8 PM |
| Kelly's Pub & Grill | Bar & grill | 517 2nd St | Mon–Fri 11 AM–1 AM |
| Kelvin Shane | Dentist | 108 Walnut St Ste A | Mon 8 AM–3 PM |
| Keys Cafe Bakery & Bar | Restaurant | 840 Carmichael Rd | Mon–Wed 7 AM–2 PM |
| Kim Dagastino Edina Realty | Real estate agent | 811 1st St Ste 202 | Thu Open 24 hours |