Search results for

Internship Business Jobs in Saint Louis, MO

Advantage Solutions Amp Agency Account Exec. Intern-Summer Internship 2026

Advantage Solutions

$20 HOUR

Saint Louis, Missouri

Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time). Responsibilities: The Company is one of North America’s leading sales and marketing agencies specializing in outsourced sales, merchandising, category management and marketing services to manufacturers, suppliers and producers of food products and consumer packaged goods.

22 days ago
Advantage Solutions Intern-Sales & Ops Planning-Summer Internship 2026

Advantage Solutions

$20 HOUR

Saint Louis, Missouri

Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time). Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time).

30+ days ago
Finance Summer Internship

The Cigna Group

$23 - $24 HOUR

St. Louis, MO

These states include: Alabama, Alaska, Arizona, Arkansas, Delaware, Florida, Georgia, Hawaii, Idaho, Iowa, Kansas, Maryland, Massachusetts, Michigan, Nebraska, Ohio, Pennsylvania, Texas, Utah, Vermont, and Washington State._. If you will be working at home occasionally or permanently, the internet connection must be obtained through a cable broadband or fiber optic internet service provider with speeds of at least 10Mbps download/5Mbps upload.

30+ days ago
Business Administration Internship - Summer 2026

Enterprise Holdings

$16 HOUR

St. Louis, MO

Multifaceted Business Experience: Interns will work alongside our team members to gain exposure to a variety of business processes in the support of our fleet management services, while developing an understanding of how these processes impact our clients and business. Peer Collaboration: Interns will work closely with one another on meaningful projects and are empowered to create strategies and processes that align with both individual strengths and team dynamics, fostering a collaborative, hands-on learning environment.

30+ days ago
Advantage Solutions Amp Agency Creative Intern-Summer Internship 2026

Advantage Solutions

Saint Louis, Missouri

Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time). Responsibilities: The Company is one of North America’s leading sales and marketing agencies specializing in outsourced sales, merchandising, category management and marketing services to manufacturers, suppliers and producers of food products and consumer packaged goods.

30+ days ago
Advantage Solutions Amp Agency Digital Shelf Intern-Summer Internship 2026

Advantage Solutions

Saint Louis, Missouri

Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time). Responsibilities: The Company is one of North America’s leading sales and marketing agencies specializing in outsourced sales, merchandising, category management and marketing services to manufacturers, suppliers and producers of food products and consumer packaged goods.

30+ days ago
Advantage Solutions-Branded Services Summer 2026 Internship

Advantage Solutions

Saint Louis, Missouri

Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time). Responsibilities: The Company is one of North America’s leading sales and marketing agencies specializing in outsourced sales, merchandising, category management and marketing services to manufacturers, suppliers and producers of food products and consumer packaged goods.

30+ days ago
Advantage Solutions-Marketing Summer 2026 Internship

Advantage Solutions

Saint Louis, Missouri

Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time). Responsibilities: The Company is one of North America’s leading sales and marketing agencies specializing in outsourced sales, merchandising, category management and marketing services to manufacturers, suppliers and producers of food products and consumer packaged goods.

30+ days ago
Pharmacy Underwriting Summer Internship Program

The Cigna Group

$24 HOUR

St. Louis, MO

These states include: Alabama, Alaska, Arizona, Arkansas, Delaware, Florida, Georgia, Hawaii, Idaho, Iowa, Kansas, Maryland, Massachusetts, Michigan, Nebraska, Ohio, Pennsylvania, Texas, Utah, Vermont, and Washington State._. If you will be working at home occasionally or permanently, the internet connection must be obtained through a cable broadband or fiber optic internet service provider with speeds of at least 10Mbps download/5Mbps upload.

30+ days ago
Technology Development Program (TECDP) Summer Internship 2026

The Cigna Group

$22 - $35 HOUR

St. Louis, MO

To be considered, candidates must demonstrate the following qualifications through their resume, including relevant coursework, school projects, internships, co-ops, or professional experience: + Education: Currently enrolled in a Bachelor’s or Master’s program in technical disciplines such as Computer Science, Data Science, Cybersecurity, Engineering, or a closely related field. Build Community & Connections: Our interns thrive in a vibrant, supportive community—connecting through curated events, cross-functional projects, employee resource groups, and peer-driven initiatives that foster lasting relationships and professional growth.

30+ days ago
Outsourced Accounting Internship-Summer 2026

Wipfli Advisory LLC

Clayton, Missouri

Wipfli LLP is a licensed independent CPA firm that provides attest services to its clients, and Wipfli Advisory LLC provides tax and business consulting services to its clients. The actual pay at the time of offer depends on business related factors like location, skills, experience, training/education, licensure, certifications, business needs, current associate pay, and relevant employment laws.

3 days ago
2026 Summer Internship: Associate QA Billing Analyst

SPECTRUM

Maryland Heights, MO

You’re a motivated rising senior student with a 3.0 GPA or higher seeking a STEM related major (Science, Technology, Engineering, or Math) bachelor’s degree from an accredited college or university. You’ll spend the other 20% on professional development sessions and networking activities, including the Kickoff Conference on May 27th, webinars, community service, cross-functional projects, and final presentations.

30+ days ago
2026 Summer Internship

Roeslein & Associates

St. Louis, MO

You will participate in meetings, work on real projects, and help Roeslein satisfy its clients' needs. Roeslein’s summer internship program focuses on giving interns real-world experience.

30+ days ago
2026 Paid Summer Internship – Sales Representative at Premier Roofing

Premier Roofing Company

$2000 - $5000 MONTH

St. Louis, Missouri

At Premier, our founders started as college grads chasing an opportunity — and built one of America’s most respected roofing companies. Build leadership, resilience, and goal-setting skills that will serve you long after summer ends.

30+ days ago
Summer 2025 Internship - Environmental Asbestos Technician

Professional Service Industries Inc

St. Louis, MO

Working at Intertek means joining a global network of state-of-the-art facilities and passionate people who deliver superior customer service with a purpose of bringing quality, safety, and sustainability to life. Intertek's project-related assurance, testing, inspection and consulting services are the risk management and quality assurance partner you need to ensure the reliability, safety and performance of your new developments, existing assets and facilities.

30+ days ago
Accounting Internship - Spring 2027

Wipfli Advisory LLC

Clayton, Missouri

Wipfli LLP is a licensed independent CPA firm that provides attest services to its clients, and Wipfli Advisory LLC provides tax and business consulting services to its clients. Interns will be responsible for utilizing educational knowledge and experience to perform numerous accounting related responsibilities such as: Respond to client and firm associate requests in a timely, accurate, positive and professional manner.

1 day ago
HVAC Internship

Jones Lang LaSalle Incorporated

Berkeley, MO

Whether you’ve got deep experience in commercial real estate, skilled trades or technology, or you’re looking to apply your relevant experience to a new industry, join our team as we help shape a brighter way forward. Working directly with JLL's experienced HVAC technicians, you'll learn essential technical skills through practical application while supporting our facilities management teams.

30+ days ago
Arborist Trainee Internship | Arnold, MO (Arnold, MO, US, 63010)

The Davey Tree Expert Company

Arnold, MO

Davey has a unique culture that focuses on the open exchange of ideas, community partnerships, a commitment to safety, and delivering unrivaled client service while acting as industry leaders in horticultural and environmental services. Work in the field, side-by-side with experienced Arborists, Climbers and Plant Health Care technicians and Landscape professionals to deliver exceptional client service and maintain the health and beauty of trees & landscapes.

6 days ago
Management Internship

Menards

BALLWIN, MO

As you progress through the 12-week Management Internship program, your General Management team, Department Managers, and Store Team Members will work alongside you to develop your understanding of our business and help prepare you to take on a management role in the near future! Our Management Internship is a paid, hands-on training program designed to develop and prepare you for the world of Retail Management.

30+ days ago
2026 Summer Internship: Architecture Intern - St. Louis

Lawrence Group People, LLC

St. Louis, MO

With 170+ employees, Lawrence Group offers architecture, interior design, landscape architecture, graphic design, planning, construction management and real estate development services to housing, hospitality, healthcare, academic, and commercial clients. Must be currently enrolled in an architecture - Undergraduate program: Preference given to 4th year students; however, 3rd year students may apply.

30+ days ago
2026 Summer Internship: Interior Design (Retail) - St. Louis

Lawrence Group People, LLC

St. Louis, MO

With 130+ employees, Lawrence Group services include architecture, interior design, landscape architecture, graphic design, planning, construction management, property management, and real estate development to a diverse array of market sectors including Civic, Commercial, Education, Healthcare, Hospitality, Senior Living, Multi-Family and Workplace. Project involvement will include general project and/or office tasks as directed by the Project Manager or team leader including, but not limited to Revit, BIM360, AutoCAD, building department due diligence, architectural construction documents.

30+ days ago
College Financial Representative, Internship Program

Northwestern Mutual

$500 - $1000 YEAR

Clayton, Missouri

Our college financial representatives, who come from varying academic backgrounds and experiences, begin to build a financial planning practice while engaging local and nationwide experts, exclusive financial products, and the support of a Fortune 500 company. Overview: College Financial Representatives in the internship program at Northwestern Mutual are provided guidance, connection, and a framework for building an integrated financial planning practice from the ground up.

30+ days ago
2026 Summer Internship - Computer Science

JobTarget Marketplace

$17 - $21 HOUR

Collinsville, MO

Description:Civil Design, Inc. (CDI) is a multi-disciplined civil engineering firm offering civil site, structural, land surveying, and GIS services. Be a part of the CDI Mission:The ideal candidate brings both educational expertise and a people-first mindset—committed to collaboration and making a meaningful difference.

16 days ago
Service Operations Summer Internship

Enterprise Holdings

$16 HOUR

St. Louis, MO

Hands-On Learning: From assisting with vendor coordination to analyzing service data, interns will use industry-leading platforms such as ServiceNow, Auto Integrate, EDGE, and manufacturer systems to support real-world projects. Professional Development: Interns are expected to demonstrate professionalism, attention to detail, and strong communication skills while managing multiple assignments This internship prepares you for future roles in operations, systems management, or business support.

30+ days ago
Supervisor Trainee Internship Summer 2026

Enterprise Holdings

$17.25 HOUR

St. Louis, MO

The Enterprise Mobility Supervisor Trainee Internship is your fast track to building real-world business acumen, leadership skills, and a career that goes far beyond the classroom. When you join our Supervisor Trainee Internship Program, you'll soon discover that every day is different because it is filled with new, exciting, rewarding and often unexpected opportunities.

30+ days ago
Daymon Business Support Analyst Intern-Advantage Solutions

Daymon

$20 HOUR

Saint Louis, Missouri

Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time). Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time).

30+ days ago
Daymon Business Support Analyst Intern-Advantage Solutions

Advantage Solutions

$20 HOUR

Saint Louis, Missouri

Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time). Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time).

30+ days ago
Vehicle Acquisition Internship - Summer 2026

Enterprise Holdings

$16 HOUR

St. Louis, MO

Incentives & Pricing Exposure: Interns will work alongside the NVA Incentives team to gain firsthand experience in partnering with automakers, analyzing incentive and pricing trends, and supporting administrative tasks related to incentive programs. Cross-Team Collaboration: Interns will collaborate on meaningful incentives projects with Incentive Team members, teams within EFM, and OEM contacts, building a strong understanding of how incentives impact vehicle acquisition strategies.

30+ days ago
Vehicle Licensing Internship - Summer 2026

Enterprise Holdings

$16 HOUR

St. Louis, MO

Interns will be responsible for preparing and reviewing titling documents to ensure compliance with state requirements, organizing and distributing registration documents to clients, as well as updating and maintaining L&T databases with accurate information. License and Title Experience - Interns will work alongside our License and Title (L&T) team members to gain L&T exposure and provide administrative support for client-owned or leased vehicle transitions.

30+ days ago
Risk Management Internship - Summer 2026

Enterprise Holdings

$16 HOUR

St. Louis, MO

Risk Management Experience: Interns will work alongside our Risk Management team members to gain exposure and provide administrative logistic support for clients and vendors facilitating vehicle repairs for client-owned or leased vehicles. Interns will be responsible for supporting the overall lifecycle of a vehicle damage claim handling inbound and outbound client communication involving initial claim reports, body shop referrals, and rental reservation needs.

30+ days ago
Research Internship - True Global Intelligence

FleishmanHillard

$20 - $22 HOUR

St. Louis, MO

FleishmanHillard was named 2021 PRovoke Global Agency of the Year; 2021 ICCO Network of the Year; 2021 Campaign Global PR Agency of the Year; 2022-2023 PRWeek U.S. Agency of the Year and Outstanding Extra-Large Agency of the Year; 2021 PRovoke APAC Consultancy of the Year; 2021 PRWeek UK Large Consultancy of the Year; Human Rights Campaign Best Places to Work for LGBTQ Equality 2018-2022; and to Seramount’s (formerly Working Mother Media) “Top Companies for Executive Women” list 2010-2022. + Assisting with qualitative and/or quantitative primary research projects, such as analyzing survey data, taking notes during focus groups/in-depth interviews, analyzing qualitative data and writing research reports.

30+ days ago
Business Analyst Intern

Maximus

St. Louis, MO

Maximus compensation is based on various factors including but not limited to job location, a candidate's education, training, experience, expected quality and quantity of work, required travel (if any), external market and internal value analysis including seniority and merit systems, as well as internal pay alignment. This role will focus on providing research and analyzing small businesses and technology partners, including SBIR (Small Business Innovation Research) awardees, to help Maximus expand its partnerships and innovative solutions in the federal space.

30+ days ago
Growth & Market Research (Business Development) Intern

Maximus

St. Louis, MO

Maximus compensation is based on various factors including but not limited to job location, a candidate's education, training, experience, expected quality and quantity of work, required travel (if any), external market and internal value analysis including seniority and merit systems, as well as internal pay alignment. This role is part of a group of capture professionals supporting our business development and operation teams in analyzing market data, researching competitors, developing strategic operational models, and identifying growth industries to drive new revenue growth.

30+ days ago
Advantage Solutions-Workforce Operations

Advantage Solutions

$20 HOUR

Saint Louis, Missouri

Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time). Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time).

30+ days ago
Accounting Intern

JobTarget Marketplace

$28 HOUR

Fenton, MO

As an Accounting Intern, you will work closely with our Finance and Accounting teams to support key operational functions while developing your skills in accounting and financial analysis. ArchKey is one of the nation's largest privately held specialty trade installation and integrated facility service companies.

24 days ago
Express Scripts Summer Intern - 2026

The Cigna Group

St. Louis, MO

These states include: Alabama, Alaska, Arizona, Arkansas, Delaware, Florida, Georgia, Hawaii, Idaho, Iowa, Kansas, Maryland, Massachusetts, Michigan, Nebraska, Ohio, Pennsylvania, Texas, Utah, Vermont, and Washington State._. If you will be working at home occasionally or permanently, the internet connection must be obtained through a cable broadband or fiber optic internet service provider with speeds of at least 10Mbps download/5Mbps upload.

30+ days ago
Daymon Category Insights Intern-Advantage Solutions

Advantage Solutions

$20 HOUR

Saint Louis, Missouri

Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time). Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time).

30+ days ago
Platform Engineering Intern, Summer 2026 - St. Louis, MO

Mastercard

$23 - $28 HOUR

O'Fallon, MO

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard’s security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and. The initiative will identify, catalog, and analyze all physical and software assets, culminating in a centralized dashboard that tracks compliance with supported software versions and aligns software license inventory with actual deployments.

28 days ago
Technology Risk Management Intern, Summer 2026 - United States

Mastercard

$23 - $28 HOUR

O'Fallon, MO

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard’s security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and. Our team plays a critical role in risk governance and internal audit operations by overseeing and consulting on issues within TIMS and internal audits to ensure accuracy, quality, and timely action.

2 days ago
Daymon Category Insights Intern-Advantage Solutions

Daymon

$20 HOUR

Saint Louis, Missouri

Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time). Regardless of any such estimate, schedule, or guideline, associates must always record all time worked for our company (which includes but is not limited to on-site work time in an assigned store, office, or other work location; required waiting time; administrative time; and work-related travel time).

30+ days ago
Human Resources Leadership Development Program - Summer Intern (On-Site)

The Cigna Group

St. Louis, MO

These states include: Alabama, Alaska, Arizona, Arkansas, Delaware, Florida, Georgia, Hawaii, Idaho, Iowa, Kansas, Maryland, Massachusetts, Michigan, Nebraska, Ohio, Pennsylvania, Texas, Utah, Vermont, and Washington State._. If you will be working at home occasionally or permanently, the internet connection must be obtained through a cable broadband or fiber optic internet service provider with speeds of at least 10Mbps download/5Mbps upload.

30+ days ago
2026 University Intern - Wood River Refining Engineer

Phillips 66

$2894 - $3308 WEEK

Roxana, IL

Through its refining business segment, Phillips 66 is upgrading crude oil and other feedstocks into higher-value petroleum products including clean-burning gasoline, ultra-low-sulfur diesel, jet fuel, lubricants, petroleum coke and other specialty products while maintaining a high regard for safety and environmental limitations. Areas of focus may include optimization of an existing process, improving energy efficiency, handling key logistics, improving equipment reliability, monitoring emissions or completing permit applications, optimizing the use of equipment by finding and eliminating defects, using sophisticated modeling and data analysis software tools.

30+ days ago
Global Product Intern - Summer 2026

Enterprise Holdings

$20 HOUR

St. Louis, MO

Louis, Enterprise Mobility together with its affiliate Enterprise Fleet Management manages a diverse fleet of 2.4 million vehicles and accounted for nearly $39 billion in revenue through a network of more than 9,500 fully-staffed neighborhood and airport rental locations in more than 90 countries and territories. Enterprise Mobility and its affiliates offer extensive car rental, carsharing, truck rental, fleet management, retail car sales, as well as travel management and other transportation services, to make travel easier and more convenient for customers.

15 days ago
Community Relations and Foundation Intern - Summer 2026

Enterprise Holdings

$20 HOUR

St. Louis, MO

Provide Stronger Together Employee Giving Campaign Support – You'll assist in supporting internal stakeholders with planning their campaigns, provide support for upcoming events, participate in research around our campaigns, and provide support for other related Community Relations tasks. Louis, Enterprise Mobility together with its affiliate Enterprise Fleet Management manages a diverse fleet of 2.4 million vehicles and accounted for nearly $39 billion in revenue through a network of more than 9,500 fully-staffed neighborhood and airport rental locations in more than 90 countries and territories.

15 days ago
Intern - Internal Communications (Enterprise Mobility IT) - Summer 2026

Enterprise Holdings

St. Louis, MO

Louis, Enterprise Mobility together with its affiliate Enterprise Fleet Management manages a diverse fleet of 2.4 million vehicles and accounted for nearly $38 billion in revenue through a network of more than 9,500 fully-staffed neighborhood and airport rental locations in more than 90 countries and territories. Enterprise Mobility and its affiliates offer extensive car rental, carsharing, truck rental, fleet management, retail car sales, as well as travel management and other transportation services, to make travel easier and more convenient for customers.

Today
2026 Summer Intern: Associate QA Analyst

SPECTRUM

Maryland Heights, MO

You’re a motivated rising senior student with a 3.0 GPA or higher seeking a STEM related major (Science, Technology, Engineering, or Math) bachelor’s degree from an accredited college or university. Beyond our connectivity solutions, we also provide local news, programming and regional sports via Spectrum Networks and multiscreen advertising solutions via Spectrum Reach.

30 days ago
Claims Intern

Factory Mutual Insurance Company

$22 - $24 HOUR

Creve Coeur, Missouri

Ability to work full time during summer internship and commute to assigned operation throughout the internship; Strong verbal and written communication skills; good analytical, organizational, problem solving, and interpersonal skills; Efficient time management skills; naturally inquisitive and able to undertake and deliver projects; Familiarity with MS Office products. FM helps clients maintain continuity in their business operations by drawing upon state-of-the-art loss-prevention engineering and research; risk management skills and support services; tailored risk transfer capabilities; and superior financial strength.

30+ days ago