7 2026 intern jobs at 5 companies in Clinton, WI

3mo
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NSC Intern (923)
Beloit, Wisconsin, United States
OnsiteTemporary, Part Time
ABC Supply
ABC Supply: Distributes building materials to professional contractors across North America.
0+ YOEPart-time legal internship for a law student; ABA-accredited; strong writing/research/communication; Beloit, WI; May–Aug 2026.
Westlaw, Microsoft Word, Microsoft Excel
2mo
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Sales Management Trainee Intern- Rockford, IL Fall 2026
Rockford, Illinois, United States
$16/hr OnsiteTemporary
Enterprise Mobility
Enterprise Mobility: Provider of vehicle rental and diverse mobility solutions.
0+ YOESenior enrolled for Fall 2026; 6+ months customer service/sales/leadership; valid driver’s license with ≤2 violations; no recent DUI/DWI; US work authorization; 10–11 week commitment; 25 hours/week.
2mo
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Sales Management Trainee Intern- Dekalb, IL Fall 2026
Dekalb, Illinois, United States
$16/hr OnsiteAll Commitments Available
Enterprise Mobility
Enterprise Mobility: Provider of vehicle rental and diverse mobility solutions.
Senior enrolled for fall 2026; 6 months customer service/sales/leadership; valid driver’s license with ≤2 moving violations in 3 years; no disqualifying DUI in 5 years; US work authorization; 10–11 week internship; 25 hours/week.
2d
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Power Generation Mechanical Engineering Intern
Germantown or Union Grove or Watertown or Concord or Paris or Milwaukee or United States
$23-$28/hr OnsiteFull Time, Internship
WEC Energy Group
WEC Energy GroupNYSE: WEC: Provides electricity and natural gas utility services to customers.
Current mechanical or related engineering degree pursuit, graduation after June 2026, minimum 2.8 GPA, high school diploma/GED/HSED, and valid driver's license.
Power Plant
3w
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Returning Intern Engineer - Summer 2026 - Great Lakes Division (For Current/Former HNTB Interns Only)
Milwaukee or Valparaiso or Sterling Heights or East Lansing or Ashwaubenon or Jackson or Indianapolis or Downers Grove or Detroit or Allen Park or Cleveland or Grand Rapids or Columbus or Westfield or Blue Ash or Chicago or Minneapolis or Madison
$21-$40/hr OnsiteFull Time
HNTB
HNTB: Designs and manages large-scale transportation and infrastructure projects.
High School diploma/GED plus current enrollment in an accredited post-secondary engineering program; basic engineering/math skills; proficiency with Microsoft Office; ability to prepare drawings and perform basic calculations.
Microsoft Office
1w
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Returning Co-op Engineer- Fall/Winter/Spring 2026-2027-Great Lakes Division (For Current/Former HNTB Co-ops only)
Allen Park or Ashwaubenon or Blue Ash or Chicago or Cleveland or Columbus or Detroit or Downers Grove or East Lansing or Grand Rapids or Indianapolis or Jackson or Madison or Milwaukee or Minneapolis or Sterling Heights or Valparaiso or Westfield
$21-$35/hr OnsiteInternship, Full Time
HNTB
HNTB: Infrastructure firm providing engineering, architecture, and construction management services.
Current/former HNTB interns enrolled in an accredited post-secondary engineering program; high school diploma/GED, basic engineering principles and calculations, Microsoft Office Suite proficiency required.
Microsoft Office Suite
2w
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Full Time Internal Substitute
Fox Lake, Illinois, United States
OnsiteFull Time
Grant Community High School District 124
Grant Community High School District 124: Provides public secondary education for the Fox Lake community.
Professional Educator License preferred; substitute or building substitute for 2026-2027 school year; immediate opening.