About William Blair Investment Banking Summer Analyst and Associate Internships

In the investment banking industry, growth creates opportunity. William Blair's growth across its global, diversified platform creates tremendous opportunities for analysts and associates to accelerate their development and shape their careers as part of one of the largest private partnerships in the industry.

Internships at William Blair

William Blair's 10-week internship programs provide unique opportunities to play an integral role and gain valuable experience across various aspects of the deal process. Over a short time, our interns get exposure to a variety of transactions types, including mergers and acquisitions, public equity offerings, and private equity placements.

  • Summer Analyst Internship: After an initial training period, our summer analysts are assigned to an industry group, where they join deal teams and work on a combination of live transactions and pitches. The program encompasses all functions of a full-time analyst, including financial modeling and analysis, industry and company research, involvement with client communications, and meetings.

  • Summer Associate Internship: After an initial training period, our summer associates are assigned to an industry group, where they join deal teams and work on a combination of live transactions and pitches. Our transactions are rarely staffed with more than five professionals; as a result, associates take on substantial responsibility and contribute significantly to the success of the firm. The program encompasses all functions of a full-time associate, including extensive deal execution and increasing accountability for transaction oversight, client relationship management, and new business development.

After completion of the program, we hope to have most of our summer analysts and associates join us full-time. The summer programs also include internal training, community service, and social events.  

Why William Blair?

Our next class of analysts and associates will be joining the firm at an exciting time in the firm's 80-year history. In the last five years, we have increased the number of investment bankers at our firm by more than 50%. As we continue to build on this impressive momentum, we are looking for talented, driven people who have a passion for taking on new challenges and providing creative solutions for the world's leading growth companies.

  • Meaningful roles and client interaction: From day one, analysts and associates are viewed as integral members of our deal teams. Because of our relatively lean deal teams, senior bankers depend heavily on their analysts and associates, counting on them to deliver insight and creative solutions for clients. Analysts and associates interact directly with clients and are able to develop valuable relationships with CEOs and CFOs of high-growth firms who are leaders in their fields.

  • High deal flow: Investment banking is a career in which you learn by doing. William Blair provides its analysts and associates incredible opportunities to work on live transactions across a wide range of sectors. Since 2012, William Blair has completed more than 900 transactions totaling more than $230 billion. Our high deal flow combined with our lean structure means that analysts and associates get exposure to a diverse array of transaction types, industries, companies, and geographies.

  • Global reach:  Our ability to clear the market for our clients is a result of our expansive knowledge of buyers and sellers around the world. We have coverage in more than 20 cities across five continents, and since 2012, more than 35% of our transactions have been cross-border. This global reach means that our associates have the opportunity to work with colleagues and growth companies around the world.

  • Invested in your development: Because of the firm's partnership structure, senior bankers at William Blair have a vested interest in seeing analysts and associates grow and take on additional responsibility as quickly as possible. In addition to our extensive formal training program, each analyst and associate is paired with a senior mentor who serves as both a resource and an advocate for career development. In our collaborative environment, senior bankers encourage analysts and associates to come to them with questions about projects and their careers. We are a true meritocracy; promotions are based not on tenure, but on an individual's ability to deliver outstanding results for clients and take on additional responsibility.

  • Recruiting for future partners: William Blair is 100% owned by its more than 190 partners who are actively involved in the firm. Our private partnership structure means that we recruit through the lens of identifying the future leaders of the firm. The firm's long-term success depends on our ability to identify, develop, and promote the industry's most talented professionals.

If you enjoy working in a dynamic environment that challenges you to think independently and deliver innovative solutions for clients, then William Blair is the ideal place to launch your career.

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William Blair Investment Banking Summer Analyst and Associate Internships

  • Investment Banking
  • William Blair
  • 222 West Adams
  • Chicago, IL 60606


  • Number of Interns: 51 to 100
  • Compensation/Benefits: Paid
  • Duration: 6 to 12 weeks
  • Academic Level: College Juniors, Business School Students


  • Boston, MA
  • Chicago, IL
  • San Francisco, CA