London School of EconomicsBusiness & Investment Group

Europe's premier finance and business society

Who we are

The LSESU Business and Investment Group (BIG) is the largest and most active society at the LSE, offering students support in pursuing careers in finance. Formed in 2019, as a merger of LSE’s two most influential societies, BIG provides access to essential career resources, networking opportunities, and skill development. With tools such as the Application Tracker and a strong community of mentorship, BIG helps its members secure highly competitive roles and thrive in their professional journeys.

900+ members
50+ events
7,000+ followers
10+ sponsors

Our Ventures

BIG Conversations

Our flagship event series, regularly brings high-profile guests to LSE, including CEOs, entrepreneurs, politicians, and executives. Our Corporate Relations team organise an array of exciting year-round keynotes, corporate presentations, panel discussions, and hands-on workshops. Past event topics have included public finance, the hedge fund and private equity industries, and micro-finance.

M&A Group
BIG Capital
London Strategy Group
LSE Focal Point

Past Speakers

Partner Organisations

Membership Benefits

Exclusive networking sessions

Networking events to connect members with industry professionals and like-minded students.

Top-tier recruitment opportunities

Recruitment events, CV drop-ins, and info sessions from the leading financial firms.

Application workshops

Technical training sessions, CV reviews, and panel events for all job programmes.

Inter-university competitions

Varsity-level stock pitches and M&A competitions organised with universities across the globe.

If you want to learn more about membership benefits, get in touch via our Instagram page!

Alumni Destinations

Gallery