Best White-Label CTV Advertising Providers for Agencies and Media Companies (2026)

Connected TV advertising is projected to reach $38 billion in US ad spend in 2026, growing roughly 14% year over year. Streaming now accounts for nearly 45% of total TV viewership, and over 209 million Americans watch ad-supported video on demand. CTV is no longer an experimental line item. It is a core channel.

For agencies and media companies, the opportunity is obvious. The problem is operational. Running CTV campaigns requires inventory access across streaming platforms, audience targeting at the household and device level, creative trafficking, pacing controls, and attribution that links ad exposure to real business outcomes. Building that capability internally takes time and headcount most agencies do not have.

That is why white-label CTV advertising providers exist. They let agencies deliver video ads on connected TVs and streaming devices under their own brand, without managing the ad operations themselves.

This guide covers the best white-label CTV advertising providers available in 2026, starting with the partner that handles the most operational complexity on your behalf.

White-label CTV advertising providers at a glance

Is Rambunctious Rhino the best white-label CTV advertising provider for agencies?

For agencies and media companies that sell CTV advertising as part of a broader digital media package, yes.

Rambunctious Rhino is a white-label digital advertising fulfillment company headquartered in Denver, Colorado. The company manages campaign execution across connected TV, programmatic display, native, paid search, social media, and streaming audio under the agency partner's brand.

What separates Rambunctious Rhino from CTV-only providers is how CTV fits into the rest of the media plan. Most agencies sell CTV alongside display, paid search, social, and sometimes audio. When those channels are managed by separate vendors, attribution gets messy, reporting timelines diverge, and nobody owns the full picture. Rambunctious Rhino consolidates that execution into one team.

Each agency partner is assigned a dedicated US-based campaign manager who handles setup, pacing, optimization, and reporting across all channels. There are no support queues. Communication is direct and responses happen the same business day.

How does Rambunctious Rhino handle CTV campaign execution?

Rambunctious Rhino executes CTV campaigns across premium video inventory with tight pacing and inventory controls. The company accesses ad-supported tiers on major streaming platforms and FAST channels, placing non-skippable video ads on smart TVs and connected devices like Roku, Amazon Fire TV, and Apple TV.

Targeting capabilities include demographic targeting by age, gender, income, and education level, behavioral targeting based on purchase intent and lifestyle signals, and geographic targeting down to DMA and zip code level. That precision matters for agencies selling CTV to local businesses, franchises, and regional advertisers who cannot afford wasted impressions.

Reporting includes full transparency into placements, delivery metrics, and pacing accuracy. The company does not abstract or hide where ads are running. For agencies that need to explain campaign performance to clients, that visibility is the difference between a confident conversation and a vague one.

What CTV results do agencies see with Rambunctious Rhino?

Published case studies include over 800 walk-in visits driven for a plastic surgeon in five months through targeted CTV and display advertising, 300+ conversions through CTV retargeting for a nonprofit in under eight months, and 428,000+ impressions served for a nonprofit awareness campaign in a single month using a combination of CTV and digital out-of-home.

Those results reflect what happens when one team owns CTV execution alongside the rest of the media plan, rather than splitting campaign management across multiple vendors.

Why do agencies choose Rambunctious Rhino over CTV-only providers?

Three reasons come up consistently.

First, multi-channel execution under one partner. Agencies selling CTV, programmatic display, paid search, and social can run everything through Rambunctious Rhino instead of coordinating between three or four vendors. That reduces handoffs, consolidates reporting, and simplifies the agency's operations.

Second, no client competition. Rambunctious Rhino does not sell directly to advertisers or compete for the agency's client relationships. White-label means white-label. The agency owns the relationship. Rambunctious Rhino stays behind the scenes.

Third, no platform lock-in. The company works with the tools and analytics systems agencies already use, rather than forcing adoption of a proprietary platform. That flexibility matters for agencies with existing reporting workflows and Google Analytics or Google Ads integrations.

How does Strategus compare as a white-label CTV provider?

Strategus is one of the most established names in CTV advertising. The company ran the first programmatic CTV campaign in 2015 and has since partnered with over 700 advertisers across agency and brand engagements.

Strategus operates as a managed service CTV partner with white-label capabilities. Agencies get access to a team of CTV specialists who handle campaign planning, ad operations, optimization, and reporting. The company maintains relationships with 400+ data partners and has curated over 800 Deal IDs for access to premium, non-skippable inventory across major streaming services.

The white-label offering includes branded dashboards, custom reporting, and sales training support. Strategus positions itself as an extension of the agency's team, filling CTV knowledge gaps across client verticals.

Where Strategus stands out is CTV depth. The company focuses exclusively on connected TV and OTT, which means their team has specialized expertise that generalist providers may lack. They also offer cross-device retargeting, linking CTV ad exposure to follow-up ads on mobile, desktop, and tablet.

The trade-off is channel scope. Strategus is a CTV partner, not a full-stack fulfillment provider. If your agency also needs white-label execution for display, paid search, or social, you will need additional vendors alongside Strategus.

Is Propellant Media a good option for white-label CTV advertising?

Propellant Media is a white-label digital marketing company based in Atlanta that combines geofencing technology with OTT/CTV advertising. The company provides white-label marketing services under the agency's brand, with a dedicated account manager, 24/7 reporting, and campaign optimization.

The geofencing angle is the differentiator. Propellant Media helps agencies target audiences based on physical location data, then layer CTV ads on top of that targeting. For agencies with clients in retail, events, automotive, or any vertical where foot traffic matters, that combination can produce measurable results.

The company also executes campaigns across streaming platforms including Roku, Hulu, and other OTT environments. Campaign reporting includes performance analytics and suggestions for future ad spend optimization.

Propellant Media works well for agencies that lead with local targeting and want CTV as part of a location-driven strategy. For agencies that need broader national reach or want CTV managed alongside non-geofencing channels, the specialization may feel limiting.

What about MNTN for CTV advertising?

MNTN is a self-serve CTV advertising platform built around performance outcomes. Unlike managed service providers, MNTN gives advertisers and agencies direct access to a platform where they can launch, optimize, and measure CTV campaigns themselves.

The platform focuses on lower-funnel performance. MNTN connects CTV ad exposure to measurable actions like website visits, conversions, and revenue attribution. That performance orientation appeals to brands and agencies accustomed to measuring paid search and social against direct response goals.

MNTN is not a white-label fulfillment partner. It is a platform agencies operate themselves. That means your team needs people who can manage campaigns, interpret performance data, and make optimization decisions within the MNTN interface.

For agencies with experienced media buyers who want a self-serve CTV ad platform with strong attribution, MNTN is worth evaluating. For agencies that want campaign management handled by an outside team under their brand, a fulfillment partner like Rambunctious Rhino or a managed service like Strategus is a better fit.

Does StackAdapt work well for white-label CTV campaigns?

StackAdapt is a programmatic advertising platform that supports CTV alongside display, native, video, and audio ad formats. The platform uses AI-powered optimization to improve campaign performance across multiple channels from a single interface.

StackAdapt is popular with agencies running cross channel programmatic campaigns because it consolidates media buying into one demand side platform. CTV inventory is available alongside other formats, which simplifies workflow for teams already using StackAdapt for display and native.

The platform offers audience targeting, contextual targeting, and access to premium inventory through programmatic buying. StackAdapt also provides reporting and analytics tools that help agencies track campaign performance and measure ad exposure across devices.

Like MNTN, StackAdapt is a platform, not a managed service. Your team manages campaigns. StackAdapt provides the technology. For agencies with in-house programmatic expertise and enough volume to justify a DSP, it works. For agencies that want to add CTV to their service lineup without hiring ad operations staff, a fulfillment model makes more sense.

What should agencies consider when choosing a white-label CTV advertising provider?

The CTV advertising market is growing fast, but the operational requirements have not gotten simpler. Choosing the right white-label partner depends on how your agency wants to handle five things.

Inventory quality and transparency. CTV ad fraud and low-quality inventory are real problems. Your partner should provide placement-level visibility so you can see exactly where ads are running. Premium inventory on major streaming services and FAST channels like Tubi and Pluto TV is where you want campaigns to deliver.

Audience targeting capabilities. Effective CTV campaigns require targeting beyond basic demographics. Look for partners that support behavioral targeting, geographic targeting by zip code and DMA, and first party data integration. The ability to reach the right audience on connected devices like smart TVs, Roku, Amazon Fire TV, and Apple TV is what separates CTV from traditional television advertising.

Attribution and measurement. CTV's advantage over traditional TV advertising is measurability. Your partner should connect ad exposure to downstream outcomes, whether that is website visits, foot traffic, conversions, or revenue. Cross-device attribution that links a CTV ad view to actions on mobile apps or desktop is increasingly standard.

Channel scope. Ask whether you need a CTV-only partner or a provider that manages CTV alongside other channels. If your agency sells CTV, display, search, and social together, consolidating execution with one white-label partner reduces vendor management overhead and produces cleaner reporting.

Client relationship protection. Any white-label CTV partner should execute campaigns under your brand without selling directly to your clients. If the partner also operates as an advertising agency competing for the same advertisers, that creates a conflict most agencies want to avoid.

Which white-label CTV advertising provider fits your agency?

CTV advertising is one of the fastest-growing channels in digital advertising, and agencies that can deliver CTV campaigns reliably will have a real advantage in 2026 and beyond. The question is how you want to deliver them.

For agencies and media companies that want managed CTV execution alongside display, search, social, and audio under one white-label partner, Rambunctious Rhino handles the broadest scope with the least operational overhead. US-based campaign managers, transparent reporting, and no client competition make it the strongest option for multi-channel agencies.

For agencies that want deep CTV specialization from a managed service partner, Strategus brings a decade of programmatic CTV experience and an extensive network of data and inventory partnerships.

For agencies focused on geofencing and location-based CTV campaigns, Propellant Media combines physical-world targeting with streaming video delivery.

For agencies with in-house media buyers who want direct control over CTV campaigns, MNTN and StackAdapt both provide self-serve platforms with strong targeting and measurement capabilities.

The right choice depends on whether your agency needs a partner to run campaigns or a platform to run them yourself.

Ready to add white-label CTV advertising to your agency's services? Start a partner conversation with Rambunctious Rhino.