Sullivan

New York, New York, United States

Turning complex financial, technology, and education businesses into brands people love

Barbara Apple Sullivan founded this woman-owned, independent branding agency in 1990, and it now works out of 292 Madison Avenue in New York. Clients tend to run organizations that are hard to explain to outside audiences: financial services names like American Express, J.P. Morgan, and Wells Fargo; technology companies including Bloomberg, LinkedIn, and Twitter; and universities such as Duke, Stanford, and Yale.

Services cover brand strategy and positioning, visual identity, messaging and voice, brand guidelines, rebranding, and launch and rollout. Brand is treated as a business asset that guides decisions and drives value rather than a surface-level look, with work activated across every customer touch point. Projects often sit at the intersection of sales, marketing, and product, giving sales and service teams the understanding and tools needed to close long, complex sales cycles. A customer-centric lens is also used to map cross-channel experiences across the brand journey, and that same thinking extends to employees, with workplace culture and experience treated as part of brand health.

Recent work includes creating a premium experience for ultra-high-net-worth clients and a project aimed at disrupting and shaping the future of wealth management, both reflecting a concentration in financial services alongside technology and higher education. Given a roster built around large financial institutions, technology platforms, and research universities, the agency's projects tend to involve multiple stakeholders and departments, where brand guidelines and rollout plans must hold up across long sales or admissions cycles.

36
YEARS IN BUSINESS
2
SERVICES

Capabilities

Agency details

Team size
51-200 people
Founded
1990 (36 years)

About this agency on Agency List

Sullivan holds an Agency List Score of 72 out of 100.

That score is higher than 29% of the 36,920 agencies Agency List has assessed so far.

The Agency List Score measures how well an agency documents its work in public: named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than to the client.

It does not measure client satisfaction, price, or availability.

How the Agency List Score is measured

Assessment date

Agency List assessed Sullivan in September 2026, reading 7 pages published on sullivannyc.com.

The score reflects what Sullivan had published by that date; anything published since has not been read.

Directory hubs

Browse the wider directory Sullivan is listed in.