- ABX Air - The all-cargo express airline and main sort hub subsidiary of Airborne Freight Corporation. Airborne Freight Corporation and ABX, together with each of their subsidiaries, do business as Airborne Express. ABX's corporate offices are in Wilmington.
- Alkermes - Drug delivery technology. Plant in Wilmington.
- American Home Products - Fort Dodge Animal Health distribution center, division of AHP. Wilmington.
- Ferno - Ferno-Washington, Inc., manufacturer of emergency patient handling and physical therapy equipment.
- Fulflo Specialties, Inc. - Valve manufacturing. Blanchester.
- The Graphics Center - Full service sign and graphics agency serving the business community of Southern Ohio.
- Homegrown Creations - Hobby ceramic supplies, retail/wholesale, providing ceramic casting slip/liquid clay, clay, ready to paint bisque, and supplies such as paints and tools.
- Kratzer's Pharmacy - your hometown pharmacy
- Mac Tools - Manufacturing plant in Sabina.
- McKee-Addison Tube Forming - Manufacturer of machine tool products.
- PBB Global Logistics - Customs house broker for freight at Wilmington Air Park.
- R & L Carriers - LTL motor freight carrier.
- Wilmington Clinton County Chamber of Commerce - Membership, area attractions, events.
- Orange Frazer Press Inc.- Publisher of the Clinton County coffee table book titled A Place Called Home.
- Blanchester Local Schools - Blanchester public school. Sections include calendar, buildings, and sports.
- On Blanchester.com - new site dedicated to the students, parents, teachers, and alumni of Blanchester High School.
- Blanchester Public Library - Library news, programs, links.
- Clinton County Adult New Readers - Working with the libraries in Clinton County to improve literacy, part of the Ohio Literacy Resource Center.
- Clinton-Fayette-Highland Educational Service District - Information on the three-county service district, combined school calendars, board minutes, members, personnel, and media center.
- Clinton-Massie Schools - Pages for each school building, the administration and faculty.
- Dayton Christian Schools - One of the largest non-denominational Christian school systems in the U.S.
- East Clinton Local Schools - Pages for board, high, middle, New Vienna, and Sabina school buildings.
- Great Oaks - High school and adult career education programs and services.
- Sabina Public Library - Library news, programs, links.
- Southern State Community College - Upcoming events, courses, college news, information.
- Wilmington City Schools - District-wide info, Board of Education, and each school building.
- Wilmington Christian Academy - nondenominational, outreach-based Christian School
- Wilmington College - Upcoming events, courses, college map, the Peace Resource Center, Evening College and branches.
- Wilmington Public Library of Clinton County - Library news, programs, links.
- City of Wilmington - Describes the people, groups, organizations, schools, employment opportunities and places to visit.
- Clinton County Government - Departments, contact, property search.
- Clinton County Board of Elections - Local election results, voter information, board members, office location, how to contact.
- Clinton County Children Services
- Clinton County Convention & Visitors Bureau - County attractions, festivals and events, shopping, dining, accommodations, maps.
- Clinton County Regional Planning Commission - Information on the County, CCRPC Work Plan, past planning projects and revised 2007 Application Forms and Fee Schedule available for download.
- National Weather Service Wilmington Ohio Web Page - The Ohio River Forecast Center and National Weather Service.
- CMH Regional Health System - Health care provider for Clinton County and surrounding area.
- Wilmington Natural Health - Wilmington Natural Health, is a center under the direction of Dr. Karen S. Balser, which offers natural health consultations, homeopathy, reflexology, massage therapy, hair analysis, saliva testing and a natural health store.
- Bennett Realty - Real estate and appraisal.
- Bill Marine Ford - Ford, Lincoln, Mercury. Wilmington.
- Borton Homes - Borton-McDermott Co., Borton Builders, Signature Homes, real estate.
- Bush Auto Place - GM cars and trucks.
- Bush Transportation Systems - Truck leasing to independent operators.
- Cope Vending Products - A source for family fun centers and the vending industry.
- Edward Jones - Investment, brokerage, banking and trust services. Office in Wilmington.
- Effie's Place - Bed and breakfast. Wilmington.
- The Equipment Superstore - Farm implement dealer and equipment supplier, service.
- Hymark Consulting - Seed and services for farmers.
- John Stanforth Construction - Residential, business construction and remodeling.
- Ken Gosney Productions - Photography studio located in downtown Wilmington.
- Kersey Auctions - Real estate services.
- Lebanon Citizens National Bank
- Liberty Savings Bank
- Lowe's - Do-it-yourself home improvement supply. Store in Wilmington.
- Mayer Farm Equipment - Farm implement dealer and equipment supplier, service.
- McBrayer Real Estate - Real estate services.
- Murphy Advertising Co. - Business and employee relations service.
- National Bank & Trust
- Orange Frazer Press - Book publisher focusing on Ohio topics.
- Peelle & Lundy - Real estate services.
- Pickard Farms - Provides a variety of farm and garden products and services, with specialties including hay, fresh eggs, and farm raised beef and chickens.
- Southwest Landmark - Farmer-owned cooperative based in Xenia.
- Staples - Office supplies. Store in Wilmington.
- Swindler and Sons - Florists. Wilmington.
- Tegtmeyer's Trailer Sales Superstore - Trailers of all designs. Wilmington.
- United American Sales Inc. - Wholesale distributor of welding supplies.
- Whittenburg Heating, Cooling and Zoning - Sells and services Lennox and Bryant furnace and air-conditioner (HVAC) systems in the Wilmington, Clinton County, and Southwest Ohio region.
- Wilmington Savings Bank
- Zeigler Pharmacy - Full-service pharmacy.
- Bible Baptist Church - Wilmington
- Clinton County Amateur Radio Association - You hear them on the short-wave, now see them online
- Clinton County Fair - The new site by the Clinton County Fair Board with fair news and other event information.
- Clinton County Genealogical, Historical Societies - Jointly sponsored by the Clinton County Genealogical Society and the Clinton County Historical Society. Includes an events page, book list for ordering publications, description of each society and museum highlights.
- Clinton County Leadership Institute - News, contacts, programs, calendar.
- Clinton Stream Keepers - Private, not-for-profit 501-C-3 organization, to preserve, protect and improve water quality in Clinton County.
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Clinton Swim & Tennis Club = Wilmington
- Crossroads Community Church - Wilmington.
- Dover Friends Meeting - Wilmington.
- Girl Scouts of Buckeye Trails Council - Regional council that includes Clinton County.
- Joe's Java House - Christian coffee house providing people with a safe environment surrounded by music and fellowship.
- Wilmington United Methodist Church - Home of Wilmington Ohio Area Emmaus.
- Main Street Wilmington - Downtown Wilmington is recognized both nationally and by Ohio as a Main Street community.
- Village of New Vienna - to promote the village and celebrate local heritage.
- Presbyterian Church - Wilmington
- Sabina 2000 - Non-profit foundation to promote quality of life for residents of Sabina and Richland, Wayne and Wilson townships.
- Sabina United Methodist Church - Events, prayer requests, church services, weekly scriptures.
- St. Columbkille Catholic Church - Wilmington.
- West Ohio Conference United Methodist Church - West Ohio Conference news, information, and the "Virtual Soul Cafe." Links to Wilmington District.
- Wilmington A.M. Rotary Club
- Wilmington Noon Rotary Club
- Wilmington Friends Meeting
- Wilmington Mothers of Preschoolers - find out where they meet
- Wilmington Rotary Club - Club news, location, and more.
- Beechwood Acres Camping - Ninety-eight wooded sites, full electric and water, at Cowan Lake.
- Caesar Creek State Park at ODNR - Ohio Department of Natural Resource's page with links other ODNR resources.
- Clinton County Farmers and Sportsmen Association
- Cowan Lake Sailing Association - Calendar of events, racing, members, committees, background.
- Cowan Lake State Park at ODNR - Ohio Department of Natural Resource's page with links other ODNR resources.
- Majestic Springs - 18-hole golf course in rural Clinton County, rolling terrain featuring bent grass fairways.
- South Shore Marina - Full service marina at Lake Cowan, boat rental from canoes to pontoon boats, bait and tackle shop, full line marine service and sales center.
