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Making connections that get results. Underline is a relationship marketing agency that connects businesses with customers through multi-channel communication programs. We work with some of the world’s best-known brands to help launch new products, increase customer engagement, and promote loyalty. With strategic insight and fresh thinking, we solve knotty problems with elegant solutions—routinely improving results and exceeding expectations. Major clients have included American Express, Chase, Verizon, Sony, and Macy's.

Underline Communications Questions

The Underline Communications annual revenue was $5.2 million in 2026.

Underline Communications is based in New York City, New York.

The NAICS codes for Underline Communications are [54, 5418, 541].

The SIC codes for Underline Communications are [731, 73].

G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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