Sales Intern (B2B Sales & Business Development)

Internship with possibility of employment

Sustainium AB is looking for a driven and curious Sales Intern seeking real hands-on experience in B2B sales, lead generation, and business development.

This internship is designed for someone who wants to learn quickly, contribute actively, and gain practical experience in B2B lead generation, prospecting, business development, and international sales within the packaging and sustainability industry.

The internship is suitable for:

• LIA / YH internship programs
• University internship programs
• Students seeking practical experience in B2B sales, business development, or international business

Expected internship duration:

Flexible, depending on your educational program requirements, ideally between 3–6 months.

What you'll do:

• Research, identify, and qualify potential customers across European and international markets
• Build and maintain high-quality prospect lists using LinkedIn, company databases, AI tools, and online research
• Support outbound prospecting through LinkedIn, email, and other sales channels
• Enrich and maintain lead data in the CRM to ensure accurate and up-to-date customer information
• Conduct market mapping, account research, and identify new business opportunities
• Review company websites, sustainability reports, product ranges and other public information to identify potential business opportunities
• Research exhibitors, trade associations, supermarket websites and industry databases to identify new prospects
• Prepare prospect lists for sales campaigns and commercial outreach
• Support the preparation of introductory calls by creating company briefs, contact summaries and suggested discovery questions
• Conduct competitor, industry, and market research to support business development
• Maintain structured target account lists by market, product, and campaign
• Assist with the preparation of sales presentations, product information, and quotation templates
• Organize brochures, technical datasheets, certifications, case studies, and other commercial materials
• Support the sales team by collecting information required for customer requests and early-stage opportunities
• Work with AI tools, CRM platforms, and sales automation workflows to improve prospecting efficiency
• Collaborate closely with the sales, marketing, and strategy teams to support pipeline growth
• Support the preparation and organization of customer sample packs, as well as prepare packing lists, labels, and shipment documentation

Who you are:

• Studying business, sales, international business, economics, or a related field
• Interested in B2B sales, lead generation, and business development
• Organized, detail-oriented, and proactive
• Analytical with strong research skills
• Strong communication skills in English
• Comfortable working with digital tools and online research
• Bonus if you have experience with HubSpot, LinkedIn Sales Navigator, Microsoft Office, AI tools, or CRM systems

What we offer:

• Real-world B2B sales and business development experience in an international environment
• Direct involvement in commercial growth and customer acquisition projects
• Exposure to international markets, sustainability, and commercial strategy
• Mentorship and practical learning across sales and business development
• Opportunity to work closely with experienced commercial professionals
• Opportunity to build valuable sales, research, and CRM skills
• Possibility of future employment for the right candidate

Location and working hours:

The internship is primarily hybrid with occasional office presence in Stockholm. Working hours and the scope of the internship can be adapted to meet educational program requirements.

This is an internship position connected to educational programs.

We are looking for someone who enjoys research, is curious, structured, and motivated to uncover new business opportunities while growing alongside the company.

We welcome applicants from different backgrounds and experiences.