Top 5 Independent Media Buying Agencies in the United States
Buying the right type of media is at the heart of any business’s marketing endeavors. There are many ways to reach an audience. Traditional approaches like broadcast TV, radio, outdoor advertising, and print are effective media services to promote a business. Newer outlets like streaming and digital media are essential strategies as well. The art of choosing the appropriate media to buy takes a lot of expertise. Many businesses turn to a media buying agency to guide them in this process.
Independent media buying agencies, meaning agencies not owned by a larger holding company, have become a popular choice for advertisers who want a partner that moves fast and works directly with the people making decisions. Below are five of the best independent media buying agencies in the country, starting with a Michigan-based agency that has been buying media since 1999.
1. Ottaway.net
Ottaway.net has operated as an independent media buying agency out of Troy, Michigan since 1999. The agency plans and buys media across broadcast TV, cable, OTT, radio, print, and outdoor advertising. It pairs traditional buying with digital services through its sister brand, Ottaway Digital.
What sets Ottaway apart is the range of budgets it serves. The agency works with clients large and small. The firm has built long-term relationships with businesses in the moving industry, cosmetic surgery, UV technology, parking software, and natural health, among other fields. Ottaway also holds Google Partner status, signifying a strong base of digital ad accounts.
For advertisers who want senior-level attention on every buy instead of being one account among thousands, Ottaway.net is a solid agency to consider working with for media buying services.
2. Horizon Media
Horizon Media is the largest independent media agency in the country. Founded in New York in 1989 by CEO Bill Koenigsberg, the agency reports estimated media buys over $8.5 billion and employs more than 2,400 people.
Horizon has been named Media Agency of the Year by MediaPost, Advertising Age, Adweek, Mediaweek, and Brandweek. Its list of clients includes GEICO, Burger King, and LG.
Horizon specializes in large national and global advertisers with complex, multi-channel media plans.
3. PMG
PMG is a Dallas-based independent agency built around its own technology platform, called Alli. They connect media buying, creative, and data in one system. PMG has more than 1,000 employees and works with brands including Dropbox, Sephora, and Whole Foods. In 2025, MediaPost named PMG its Independent Agency of the Year. The company has appeared on Ad Age’s Best Places to Work list for 11 straight years.
One of PMG’s biggest wins was in 2021 when they took over Nike’s North American media business. Apple is another one of PMG’s premier clients. PMG is considered an independent agency that enterprise brands seriously consider to conduct media buying.
4. Tinuiti
Tinuiti calls itself the largest independent full-funnel marketing agency in the United States. They’ve reported $4 billion in digital media under management with more than 1,200 employees on staff.
Tinuiti’s focus is digital performance media. They spend a lot of their efforts on Amazon, retail media, paid social, streaming, and search. Tinuiti is an appealing option for brands that want to allocate their media spend to digital channels and have a single agency manage performance across all of them.
5. Wpromote
Wpromote is an independent performance marketing agency based in El Segundo, California. Founded in 2001 by Michael Mothner, it started as a paid search specialist and has grown through acquisitions into one of the largest independent performance agencies in the country. In 2024, Wpromote merged with creative agency Giant Spoon to form a combined shop of more than 700 people. Clients include Vuori, Peacock, Intuit QuickBooks, Strava, and Equinox.
Wpromote brands itself “The Challenger Agency,” aimed at brands trying to strategize better than bigger competitors rather than outspend them. This approach has positioned Wpromote to take on growth-stage and mid-market brands looking for a data-driven and forward-thinking media partner.
Why Independent Matters
Every agency on this list operates without a parent holding company. That independence means no layered reporting structure slowing decisions down. This also means no sister agencies are competing internally for the same client budget. Independent agencies also tend to avoid principal media deals, which makes them a more unbiased partner. Ultimately, there’s no incentive to direct spend toward media the agency itself owns a stake in.
These agencies answer directly to clients and not a corporate parent. Choosing the independent route means working with a partner that’s nimble, accountable, and personally invested in your results. Relationship building and personal attention are what set these five leading independent media buying agencies in the United States apart.
