Insights

Specialized Industry Focus Sullivan's extensive expertise in complex industries such as financial services, higher education, technology, and professional services positions it as an ideal partner for organizations seeking to simplify and communicate their brand within highly intricate ecosystems.

Established Market Presence With over 35 years of experience and a revenue estimate between 500 million to 1 billion dollars, Sullivan demonstrates stability and a proven track record, making it a trustworthy candidate for large-scale branding and marketing projects.

woman-owned Certification Being a proudly woman-owned and WBENC certified agency adds value for organizations prioritizing diversity and inclusion in their supply chain, opening opportunities with clients and partners emphasizing equitable business practices.

Modern Technology Stack Utilizing advanced tools like Adobe Premiere Pro, Cloudflare Bot Management, and Campaign Monitor indicates Sullivan's commitment to integrating cutting-edge digital solutions to enhance campaign delivery and performance, appealing to clients seeking innovative marketing strategies.

Growth in Creative Services Sullivan’s focus on transforming complex brands into approachable entities, combined with a strong presence in the advertising space, highlights opportunities to assist companies looking to elevate their brand clarity and engagement during periods of market expansion or rebranding efforts.

Sullivan Tech Stack

Sullivan uses 8 technology products and services including Dynamic Logic, Adobe Premiere Pro, RSS, and more. Explore Sullivan's tech stack below.

  • Dynamic Logic
    Ad Verification And Optimization
  • Adobe Premiere Pro
    Audio, Video, Graphics
  • RSS
    Content Management System
  • Campaign Monitor SPF
    Marketing Automation
  • LinkedIn
    Online Community Software
  • WP Engine
    Platform As A Service
  • Cloudflare Bot Management
    Security
  • Timesheets
    Time Tracking

Media & News

Sullivan's Email Address Formats

Sullivan uses at least 1 format(s):
Sullivan Email FormatsExamplePercentage
FLast@sullivannyc.comJDoe@sullivannyc.com
98%
LastFir@sullivannyc.comDoeJoh@sullivannyc.com
1%
L.First@sullivannyc.comD.John@sullivannyc.com
1%

Frequently Asked Questions

Where is Sullivan's headquarters located?

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Sullivan's main headquarters is located at 292 Madison Avenue 21st Floor New York, New York 10017 United States. The company has employees across 5 continents, including North AmericaEuropeOceania.

What is Sullivan's phone number?

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You can contact Sullivan's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Sullivan's stock symbol?

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Sullivan is a publicly traded company; the company's stock symbol is OSL.

What is Sullivan's official website and social media links?

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Sullivan's official website is sullivannyc.com and has social profiles on LinkedIn.

What is Sullivan's SIC code NAICS code?

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Sullivan's SIC code is 8742 - Management Consulting Services NAICS code is 541613 - Marketing Consulting Services.

How many employees does Sullivan have currently?

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As of February 2026, Sullivan has approximately 372 employees across 5 continents, including North AmericaEuropeOceania. Key team members include Chief Strategy Officer: N. F.Chief Creative Officer, Partner: J. P.President & Ceo: D. P. S.. Explore Sullivan's employee directory with LeadIQ.

What industry does Sullivan belong to?

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Sullivan operates in the Advertising Services industry.

What technology does Sullivan use?

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Sullivan's tech stack includes Dynamic LogicAdobe Premiere ProRSSCampaign Monitor SPFLinkedInWP EngineCloudflare Bot ManagementTimesheets.

What is Sullivan's email format?

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Sullivan's email format typically follows the pattern of FLast@sullivannyc.com. Find more Sullivan email formats with LeadIQ.

When was Sullivan founded?

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Sullivan was founded in 1990.

Sullivan

Advertising ServicesNew York, United States201-500 Employees

At Sullivan, we transform hard-to-understand businesses into easy-to-love brands. 

Founded in 1990 by Barbara Apple Sullivan, we’ve helped top organizations uncover the humanity behind their complexity since our inception. Where other agencies focus on high-level awareness building, we help organizations with complex ecosystems use brand to reach customers at critical points of decision.  

As a brand and marketing firm, we hold 35 years of expertise in complex industries such as financial services, higher education, technology, and professional services. 

Sullivan is proudly woman-owned and WBENC certified.

Section iconCompany Overview

Headquarters
292 Madison Avenue 21st Floor New York, New York 10017 United States
Phone number
SIC Code
8742 - Management Consulting Services
Stock Symbol
OSL
NAICS Code
541613 - Marketing Consulting Services
Founded
1990
Employees
201-500

Section iconMedia & News

Section iconFunding & Financials

  • $500M$1B

    Sullivan's revenue is estimated to be in the range of $500M$1B

Section iconFunding & Financials

  • $500M$1B

    Sullivan's revenue is estimated to be in the range of $500M$1B

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