AGENCY LIST

Big Sea

St. Petersburg, Florida, United States
Visit bigsea.co

Marketing and web design for nonprofits and healthcare organizations

Big Sea is a woman- and minority-owned agency with a focus on purpose-driven organizations. They specialize in marketing and web design services for nonprofits, healthcare, cultural institutions, and values-led B2B brands. With over 20 years of experience, Big Sea combines strategy, storytelling, and digital campaigns to help organizations grow with clarity and creativity.

Their core services include story-driven marketing, strategic web design, and digital ecosystem building. Big Sea is committed to creating scalable, responsive, and accessible websites using platforms like HubSpot and WordPress. They emphasize the importance of storytelling in reaching hearts and minds, pairing data and research with creative approaches to ensure impactful communication.

Big Sea is a Certified B Corporation, reflecting their dedication to equity, integrity, and impact. They have worked with clients such as the National Policing Institute and MOTE, demonstrating their ability to handle complex projects and deliver results that align with their clients' missions.

21
YEARS IN BUSINESS
8
SERVICES

Capabilities

Category

Web Design

Services

What these services involve

Accessibility Design
Accessibility Design for web design buyers. Clear scope, measurable outcomes, and reliable delivery.
Conversion Focused Design
Conversion Focused Design for web design buyers. Clear scope, measurable outcomes, and reliable delivery.
Design Systems
Design Systems for web design buyers. Clear scope, measurable outcomes, and reliable delivery.
Information Architecture
Information Architecture for web design buyers. Clear scope, measurable outcomes, and reliable delivery.

Agency details

Team size
51-200 people
Founded
2005 (21 years)

About this agency on Agency List

Big Sea holds an Agency List Score of 96 out of 100.

That score is higher than 87% of the 36,919 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 Big Sea in September 2026, reading 7 pages published on bigsea.co.

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

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