Insights

Strong Market Position Sullivan operates with a substantial revenue range of 500 million to one billion dollars and competes alongside notable agencies like Envision, Dentsu, and Publicis Groupe, indicating its established presence and potential for expanding high-value client relationships across the advertising services industry.

Specialized Brand Transformation The company's focus on transforming complex organizations into relatable, human-centric brands positions it as a valuable partner for corporations seeking to enhance customer trust and engagement at critical decision points, opening opportunities in strategic branding and consultancy services.

Technological Capabilities Utilizing a diverse tech stack including Adobe Premiere Pro, Cloudflare Bot Management, and Campaign Monitor suggests Sullivan’s capability to deliver advanced, data-driven marketing campaigns—potential that can be leveraged for clients investing in digital innovation and analytics.

Client-Centric Approach With a history of helping top organizations and a keen focus on addressing complex ecosystems, Sullivan is well-positioned to target enterprise-level clients in need of sophisticated branding and communication solutions, especially those undergoing digital transformation.

Growth and Talent Pool Having a dedicated team of over 200 employees and similar staffing levels to firms like Envision and Anomaly presents sales opportunities in HR, training, and scalable project collaborations, especially for clients seeking to partner with an experienced, mid-sized agency committed to impactful branding initiatives.

Similar companies to Sullivan

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 Formats	Example	Percentage
FLast@sullivannyc.com	JDoe@sullivannyc.com	98%
LastFir@sullivannyc.com	DoeJoh@sullivannyc.com	1%
L.First@sullivannyc.com	D.John@sullivannyc.com	1%

Frequently Asked Questions

Where is Sullivan's headquarters located?

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

What is Sullivan's phone number?

You can contact Sullivan's main corporate office by phone at

+1-212-687-****

. 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?

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

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

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

What is Sullivan's SIC code NAICS code?

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

How many employees does Sullivan have currently?

As of December 2025, Sullivan has approximately 370 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?

Sullivan operates in the Advertising Services industry.

What technology does Sullivan use?

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

What is Sullivan's email format?

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

When was Sullivan founded?

Sullivan was founded in 1990.

Sullivan

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

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

Q: How many employees does Sullivan have currently?

Sullivan has approximately 370 employees.

Q: What technology does Sullivan use?

Sullivan's tech stack includes WordPress, LinkedIn, Vizu, Twitter, Microsoft Advertising.

Advertising ServicesNew York, United States201-500 Employees

We transform hard-to-understand businesses into easy-to-love brands.

Whether that’s deciding who to trust with your investments or retirement plan, choosing where you go to college, or selecting a technology solution that changes how your company will operate, we help our clients reach their constituencies when and where it matters most.

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, Barbara recognized an opportunity to help organizations with complex ecosystems use brand to reach customers at critical points of decision. 

Our parental leave policy can be found here: https://sullivannyc.com/ideas/parental-leave-policy/