MarketSource
MarketSource Inc. is a sales acceleration company that operates under Allegis Group. It specializes in providing outsourced managed sales solutions for Fortune 1000 clients across various industries. The company aims to deliver measurable business outcomes through tech-enabled strategies tailored to client needs. MarketSource offers a range of services, including managed sales teams, direct and indirect sales support, and performance-driven training programs. It integrates technology into its operations with AI-supported contact centers and data-driven tools to enhance sales processes. The company provides industry-specific solutions in automotive, healthcare, and retail, focusing on areas like training, customer experience optimization, and sales channel management. With a workforce of over 9,000 sales personnel, MarketSource facilitates more than $6 billion in annual sales for its clients. The company has expanded its capabilities through strategic acquisitions, enhancing its expertise in various sectors. It emphasizes quantifiable ROI, agility, and cost-effective scaling as key aspects of its service offerings.
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Headcount trend
MarketSource went from 1,634 employees in Jul 2023 to 1,569 in Jun 2025. Last 6 months: 54 people joined, 73 left.
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All salaries1 salary profiles in the US
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MarketSource FAQ
How many employees does MarketSource have?
MarketSource has about 1,569 employees, down 0.9% over the last 3 months (as of Jun 2025).
Does MarketSource sponsor H1B visas?
Yes. MarketSource filed 2 H1B (LCA) applications in FY2025, according to the latest U.S. Department of Labor disclosures. Most of them were for Engineering roles.
How much does MarketSource pay?
6figr has 1 salary profile for MarketSource in the US, with pay broken down by role, level, gender and ethnicity on the MarketSource salaries page. See MarketSource salaries
Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles. Updated 21 Oct 2026.