Boutique Marketing & Media Agency · NYC

On-BaseCollective

Social media strategy and brand marketing for sports, media, and technology brands that want to move the needle.

Work with us Our services
10+
Years in sports social media
2023
Founded in New York City
6
Core service offerings

A boutique agency founded by decade-long sports social media strategist Olivia Witherite — built to deliver senior-level thinking without the overhead.

·Social Media Strategy ·Brand Marketing ·Fractional Leadership ·Content Strategy ·Paid Social ·Influencer Marketing ·Sports Media ·Content Distribution ·Social Media Strategy ·Brand Marketing ·Fractional Leadership ·Content Strategy ·Paid Social ·Influencer Marketing ·Sports Media ·Content Distribution
What we do
Strategy that performs

From fractional CMO engagements to platform-native content strategy, we bring senior-level thinking to brands that need to grow smart.

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Who we've worked with
The Athletic. Webby Awards. The Game Day.

A decade of experience across sports betting, sports media, award organizations, and digital-first startups — brands that demanded results.

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The work
Campaigns & Strategy

Writing samples, media appearances, and selected case studies — a look inside the thinking and execution behind our work.

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Founded by

Olivia Witherite

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On-Base Collective was founded in 2023 by Olivia Witherite (MBA) — a digital media expert with more than a decade of experience in sports social media. Before launching the agency, she held roles as Marketing Director at The Webby Awards, VP of Digital Strategy at The Game Day, and led social strategy at The Athletic.

The agency specializes in social media strategy, brand marketing, fractional leadership, paid media, influencer marketing, and content distribution — for sports, media, and technology brands that want to grow with intention.