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 programsUniversity internship programsStudents 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.

Research, identify, and qualify potential customers across European and international marketsBuild and maintain high-quality prospect lists using LinkedIn, company databases, AI tools, and online researchSupport outbound prospecting through LinkedIn, email, and other sales channelsEnrich and maintain lead data in the CRM to ensure accurate and up-to-date customer informationConduct market mapping, account research, and identify new business opportunitiesReview company websites, sustainability reports, product ranges and other public information to identify potential business opportunitiesResearch exhibitors, trade associations, supermarket websites and industry databases to identify new prospectsPrepare prospect lists for sales campaigns and commercial outreachSupport the preparation of introductory calls by creating company briefs, contact summaries and suggested discovery questionsConduct competitor, industry, and market research to support business developmentMaintain structured target account lists by market, product, and campaignAssist with the preparation of sales presentations, product information, and quotation templatesOrganize brochures, technical datasheets, certifications, case studies, and other commercial materialsSupport the sales team by collecting information required for customer requests and early-stage opportunitiesWork with AI tools, CRM platforms, and sales automation workflows to improve prospecting efficiencyCollaborate closely with the sales, marketing, and strategy teams to support pipeline growthSupport the preparation and organization of customer sample packs, as well as prepare packing lists, labels, and shipment documentation

Studying business, sales, international business, economics, or a related fieldInterested in B2B sales, lead generation, and business developmentOrganized, detail-oriented, and proactiveAnalytical with strong research skillsStrong communication skills in EnglishComfortable working with digital tools and online researchBonus 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 environmentDirect involvement in commercial growth and customer acquisition projectsExposure to international markets, sustainability, and commercial strategyMentorship and practical learning across sales and business developmentOpportunity to work closely with experienced commercial professionalsOpportunity to build valuable sales, research, and CRM skillsPossibility of future employment for the right candidate

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.