The Best YouTube Influencer Marketing Agency For 2025

With nearly 2.5 billion active users, YouTube is one of the largest social media platforms in the world. When it comes to long-form video, it’s the top platform for creators, users, and brands looking to make a connection. Below, we will look at the best YouTube influencer marketing agencies for 2025.

Influencer marketing on YouTube provides huge benefits for companies and it also helps support some of the most entertaining and informative creators in the world.

Customers also flock to YouTube to learn about the new products. A recent survey showed that 34% of respondents use YouTube as their first stop when doing product research. This includes both new product discovery and product reviews.

With those metrics, it’s no wonder brands want as much exposure on YouTube as possible, and the best influencer marketing agencies can make that happen for them.

Below, we’ll list our top YouTube influencer marketing agencies in 2025 based on their success and the significance of the brands they’ve worked with in the past. We’ll also cover what you should look for when choosing a YouTube influencer marketing agency.

1 HireInfluence

HireInlfuence was founded in 2011 and was one of the original pioneers of influence marketing at the agency level. Since then, they’ve grown into a premier agency that has worked with top brands such as McDonalds, Grammarly, Southwest Airlines, Coca-Cola, and many more.

HireInfluence shines with its ability to utilize the latest technology and strategies while still providing a completely tailored and hand-crafted campaign for its clients. This mix of hands-on creation combined with the latest technology helps to make HireInfluence stand out among similar agencies.

What They Specialize In:

Due to its long history, HireInfluence is in a unique position to fully understand the nuances of the YouTube platform. Having over a decade of experience allows HireInfluence to create highly customized YouTube influencer campaigns that resonate with audiences.

HireInfluence expertly combines hand-crafted campaigns with their custom client dashboard that allows for tracking, influencer selection, and content activations. This gives clients the flexibility to manage campaigns from start to finish in the way that fits their brand and their workflow the best.

Overall Review:

Based on its history and vision for predicting the power of influencer marketing when other agencies couldn’t, HireInfluence has positioned itself as the premier YouTube influencer marketing agency.

While they focus on larger clients, including some Fortune 500 clients, they also can create customized campaigns for SMBs with the same level of detail and engagement. The agency has never strayed from its roots of providing hand-crafted campaigns based on both creativity and data-driven objectives.

For brands who want personalized and creative YouTube influencer marketing campaigns that provide extremely high engagement and ROI, HireInfluence is the top contender in a growing field of newer agencies.

2) IMA

IMA (recently acquired by MediaMonks) is one of the better-known influencer agencies. With a global presence, they are a dominant player in the influencer marketing space and have a client list to match. Having worked with top brands across different industries, they definitely cater to larger corporations and brands that have a sizable budget and campaign scope.

What They Specialize In:

IMA really focuses on the sheer size of its agency and its professional marketers from different disciplines. They also feature a roster of millions of influencers that they can call on at any time to quickly create a campaign for their clients.

IMA also has a robust internal influencer platform for its clients to use. The IMA platform allows for deep insights into each influencer as well as ongoing campaign metrics and other information. The combination creates a good mix of agency support along with self-service options for more savvy clients.

Overall Review:

IMA is one of the most recognizable names in YouTube influencer marketing and their track history and client list prove their knowledge and expertise in the space. Smaller companies may not be the best fit for IMA due to their focus on larger clients. But for larger companies with a budget to match, IMA can deliver strong results and professional service.

3) Ubiquitous

Ubiquitous started as an agency that focused on TikTok influencer marketing. Since then, they have branched out and now have in-house experts to develop and execute YouTube-specific influencer campaigns. 

What They Specialize In:

Having had so much success with TikTok, Ubiquitous brought that same energy to other platforms. As an agency, they try to focus on trends and leverage that granular knowledge to create campaigns that resonate with target audiences. They offer complete strategy development and campaign creation for a 100% turn-key solution to influencer marketing.

Overall Review:

Ubiquitous is somewhat new to YouTube influencer marketing and that can be a question mark for some brands who want to see a longer track record. However, Ubiquitous is a good fit for smaller brands or boutique brands who want highly customized campaigns that take advantage of the nuances within their niche. This is really where Ubiquitous excels and where they can deliver the best results for brands.

4) Obviously

Obviously is a global influencer marketing agency and has built a reputation for its YouTube prowess, among other leading social media platforms. They focus on internal technology to help their clients have access to real-time data for campaigns and influencers. This integration gives clients the ability to have more hands-on control of campaigns. 

This is particularly attractive to brands with their own marketing departments who then partner with Obviously to handle portions of their influencer marketing strategy and execution.

What They Specialize In:

Obviously is a strong contender for brands that require more complex strategies that span across various influencers and may include other paid advertisements. Bringing all of these moving parts together can be difficult and this is where Obviously shines.

Combined with their internal campaign tracking platform, they provide larger brands with the tools they need to make fast decisions, even for the largest campaigns.

Overall Review:

Obviously has a larger minimum budget requirements than some other agencies on this list. So smaller brands may not have the resources to work with them. However, larger brands who are looking for a marketing partner to handle ongoing or large campaigns will appreciate Obviously’s experience in that area.

5 NeoReach

NeoReach is a U.S.-based influencer marketing agency founded in 2014. The agency offers a data-driven approach to influencer marketing, leveraging proprietary software to help brands identify, manage, and optimize partnerships with influencers. It caters to businesses of various sizes, including startups, large companies, and agencies, across multiple industries.

What They Specialize In:

NeoReach specializes in influencer vetting, campaign management, and analytics. They also heavily lean into AI for fraud detection and other tools to vet influencers faster.

Its platform features an extensive database of influencers on YouTube, allowing brands to find partners based on audience demographics, interests, and engagement metrics. The agency also provides tools for managing contracts, tracking campaign performance, and ensuring compliance with FTC guidelines.

NeoReach offers a hybrid approach of self-service tools along with completely managed campaign creation and execution.

Overall Review:

NeoReach stands out because of the way it relies on data and technology, making it a strong choice for brands looking to scale influencer campaigns efficiently. 

Its proprietary software is a significant asset, and the cost of its services and platform may be better suited to companies with larger budgets. They’re also best for brands that already have experience with successful influencer marketing campaigns. Brands who are newer to the space may find the automated systems overwhelming at first. In those cases, going with an agency that provides more customized services may be a better option.

But for brands who know exactly what they want and want an agency to get them there, NeoReach can deliver.

6 The Shelf

The Shelf is a U.S.-based influencer marketing agency that offers end-to-end campaign management services for YouTube campaigns. Founded in 2014, the agency focuses on delivering creative and data-driven influencer strategies tailored to meet its clients’ goals.

The Shelf also focuses on hand-crafted and customized campaigns for large clients that go beyond the standard vetting of influencers. 

What They Specialize In:

As an agency, The Shelf specializes in full-service influencer marketing, including influencer sourcing, campaign ideation, execution, and performance analysis.

It emphasizes creating personalized campaigns that align with a brand’s identity while leveraging its in-house analytics tools to ensure success. The agency creates campaigns for all popular social platforms, but they have extensive experience with YouTube campaigns.

Their expertise includes working with nano, micro, and macro influencers to create campaigns that touch on all the strengths that the platform has to offer. 

Overall Review:

Like a few other agencies on our list, The Shelf is recognized for its ability to combine creativity with analytics. However, its comprehensive approach may be more resource-intensive, potentially making it better suited for mid-size to larger businesses with the budget and scale to support multi-faceted campaigns.

If you’re a smaller brand or already know what you want, another agency that has more self-service options may be a better choice, especially on a smaller budget.

7 August United

August United is a boutique influencer marketing agency that focuses on crafting custom campaigns for brands looking to build authentic connections with their audiences. 

With a strong emphasis on storytelling and brand alignment, August United works with all platforms, including YouTube.

What They Specialize In:

August United specializes in personalized YouTube influencer marketing campaigns, offering services such as influencer matchmaking, and content creation. The agency places a particular emphasis on authenticity, prioritizing partnerships with influencers whose values and style align closely with the brands they represent.

August United works mostly with larger brands, but they do offer minimum campaign obligations for medium-sized brands.

Overall Review:

August United is well-suited for brands that prioritize quality over quantity in their influencer marketing efforts. Its focus on personalized campaigns and authentic storytelling makes it an appealing option for businesses seeking deeper audience engagement rather than broad reach. However, as a boutique agency, its services may be less scalable for larger companies running multiple or expansive campaigns. Smaller or mid-size brands looking for tailored strategies and hands-on support are likely to benefit most from August United’s YouTube approach.

8 Influencer Marketing Factory

The Influencer Marketing Factory has brought some of the large agency technology to smaller brands that are looking for lower-budget entry points. But despite allowing clients with lower minimums, they still strive to provide the highest quality and campaign options.

What They Specialize In:

Influencer Marketing Factory has had some of the largest clients, such as Google. But they still are able to provide solid campaigns to those with smaller budgets starting at around $20,000 and up.

The result is an overall well-rounded agency that offers a unique mix of campaign execution with a self-service platform so clients can manage certain aspects of their campaigns independently. This helps to lower costs and also helps to streamline certain actions throughout the campaign life cycle.

Overall Review:

The Influencer Marketing Factory has excelled at finding a niche for itself between the larger agencies and the ones that only focus on smaller clients. By combining the best attributes of each, they can offer a unique service that satisfies a wide variety of clients while still providing creative campaigns that feel authentic.

9 Find Your Influence

Having started in 2013, Find Your Influence is one of the more experienced agencies for YouTube influencer marketing. They have extensive experience in the beauty niche and also work well for lifestyle brands.

What They Specialize In:

Find Your Influence works well for brands looking to focus on the latest trends within certain categories. Their creative campaigns and strong relationships with current influencers have made them a solid choice for large beauty brands such as L’Oreal.

Creativity and authenticity are at the core of their campaigns and they don’t put as much of an emphasis on technological platforms or the latest tools.

Overall Review:

Find Your Influence should be considered for beauty or lifestyle brands who want a polished campaign that comes from a team with proven results in that industry. Their experience going back over a decade has placed them as one of the top agencies for YouTube influencer marketing for small and large brands alike.

10 Vireo Video

Rounding out our list is Vireo Video, we included this agency because of their low minimums which allows brands with strict budgets to still get a great campaign off the ground on YouTube.

What They Specialize In:

Vireo Video has streamlined the process for connecting brands and influencers on their platform. This helps keep costs down and also reduces the lead time from campaign inception to launch.

Besides just influencer marketing, they also help creators build their own presence and subscriber counts. This unique perspective helps see the industry from both the client’s side and the side of an influencer.

Vireo allows brands to optimize their own videos on the platform to get more reach for the content the brand creates in-house.

Overall Review:

For smaller brands or brands who just need to connect with the right influencer, Vireo Video can be a strong choice. Their streamlined internal process makes finding influencers fast and easy, which is welcome for almost any brand.

For larger brands who want a dedicated team and campaign creation, Vireo Video may not be the best fit. But if a brand just needs the foundational elements of a great YouTube video campaign, this is a cost-effective agency to get the job done.

Benefits Of YouTube Influencer Marketing

If you’re wondering if your brand should start an influencer marketing campaign on YouTube or expand its presence on YouTube, you should be aware of the strengths the platform has to offer.

If these strengths match up with your brand and marketing goals, it makes sense to consider a stronger YouTube marketing presence. The platform continues to grow along with the number of new influencers. So even if you advertised there in the past, there may be new opportunities today you should consider.

The King of Long-Form Video Content

Other platforms such as Instagram, TikTok, and X now allow longer videos, but they don’t compare to YouTube for in-depth content by influencers who are considered subject matter experts.

Long-form videos have a unique ability to increase engagement with audiences. The more time a user spends with a piece of content, the more invested they feel. This makes whatever messaging contained in that content resonate better.

Of course, the messaging and overall marketing campaign need to be carefully developed. However, when implemented properly, YouTube influencer marketing offers brands a chance to make a deeper connection with audiences through specific creators who offer longer content.

Longer content is also tailor-made for product reviews. Brands that sell higher-priced items or items that have longer customer journeys requiring research can benefit from YouTube.

Product reviews on YouTube are often a first stop for consumers making buying decisions. Having a trusted influencer conduct these reviews for your product offers an avenue for both product research and product discovery.

The YouTube algorithm heavily favors related content, so consumers searching for similar products have a significant chance of discovering your product through the YouTube recommendation algorithm.

SEO Benefits

Search engine optimization (SEO) is still highly effective for digital marketing. One of the key benefits of YouTube influencer marketing is that you also get SEO benefits without having to spend extra resources.

A perfect example of this is product reviews. Product reviews on YouTube generally show up in the top 10 positions on Google search results. Brands spend thousands of dollars to appear in those top spots, so getting there as a bonus by partnering with YouTube influencers drastically increases your ROI.

Today, AI-generated search platforms like Google Gemini are also providing links along with their AI-generated answers. As more consumers use these AI search tools, your links on YouTube can continue to get clicks since they are used as source material for AI-generated results.

Overall, YouTube influencer marketing is unique in that the benefits can spill over onto other major platforms, such as Google search for a majority of product searches.

To see if this can benefit your brand, do a search for competitor’s product reviews on Google and check if any YouTube videos appear in the results. If not, it means you can likely dominate that phrase in the video results. If a competitor is there, you need to get your product mentioned in the results to be fully competitive.

Build Your Brand’s Credibility

Building authority and credibility is important for any brand, especially those that are new to the marketplace. YouTube is full of influencers who are considered subject matter experts in their industry.

These influencers can shape how brands are seen and their endorsement can be an invaluable resource for startups and established brands alike. Partnering with the right influencers in your industry and creating an authority-building campaign strategy can create benefits that last long after the campaign has ended.

When using YouTube for this type of influencer campaign, it’s important to create the right campaign strategy before you start. Choosing the right influencers and matching your content brief with their content style is critical to achieving the best results.

Extreme Targeting Options

With so many active creators on the platform, you can find the right audience for virtually every niche. You can choose between several influencers to match your specific campaign goals even within a niche.

The YouTube platform also has extensive analytics available to influencers so you can confirm specific demographic targets before deciding on which influencers to choose.

Targeting is one of the main overall benefits of influencer marketing and YouTube allows for precise targeting that is far better than many other advertising options.

Higher Engagement

We touched on this earlier and YouTube has the potential for higher engagement, which is always beneficial to your marketing efforts. Many comment sections for creators on YouTube are more like a community. You can often find long replies and comment threads from subscribers who add context and information to the content.

This type of engagement is not typical on other platforms such as Instagram and it is one of the unique aspects of YouTube influencer marketing and the community that exists there.

Micro Influencers Are Highly Effective

Even the largest brands turn to micro influencers for their highly engaged audiences and niche targeting options. On YouTube, micro influencers can be extremely effective for several different types of influencer campaigns.

The smaller audience size that micro influencers have on YouTube doesn’t mean the influencer is less popular. It’s often due to the specific niche and type of content they produce. This combination offers great value for brands who want extreme targeting without going over budget.

How To Choose A YouTube Influencer Marketing Agency

We’ve given you our list of the top 10 YouTube influencer marketing agencies, but you’ll likely want to narrow down your specific choices a little more than that.

In this section, we’ll go over the questions you should ask an agency while doing your research to ensure they align with your goals, budgets, and brand voice.

Experience Related To Your Business

This one is important and it’s how experienced the agency is working with similar brands to yours. You may not find an exact match or an agency that works exclusively in your industry, but you want to look for some solid experience.

An agency that mostly works with fashion brands may not be the best fit for a technology B2B startup. There is always some overlap, but those are different audiences and campaign types that require a bit of specialization or experience.

Check into the agencies you’re considering and find out about brands they’ve worked with that are similar to your own. The more matches you find, the better the results will likely be.

A YouTube influencer marketing agency that’s experienced in your industry likely already has relationships with influencers in the space, so their vetting and influencer choices will be far better than an agency with less relevant experience.

Influencer selection is key to successful influencer campaigns, so this can’t be overstated.

Case Studies With Verifiable Metrics

Case studies are short summaries of campaigns and brands the agency has worked with in the past. A good case study should explain what the brand was trying to achieve along with the strategy the agency used to achieve that goal.

The rest of the case study should explain the process of executing the campaign along with the final metrics to show the success of the campaign. 

A strong agency should have plenty of case studies to offer you. Most of these will likely be posted on their website. If they don’t have case studies or if they’re incomplete and lacking detailed metrics, that may be a red flag.

Marketing is all about results. If an agency can’t show results and only makes promises, you should look elsewhere before you spend your company’s resources.

An Agency & Not Just A Platform

Today, there is some confusion over an influencer marketing platform and an agency. An influencer platform is like eBay but for brands and influencers. It brings the two together under one roof and simplifies the payment and contractual process. It can also make it easier to find influencers.

An agency on the other hand has influencer marketing experts on staff who work with your brand to develop a strategy, create the campaign, and manage the execution and tracking.

Some agencies also have their own proprietary platform that clients can use to extend campaigns or manage their campaigns once they’re set up and running.

Both options can work but only when used in the appropriate circumstances. If your brand needs help to identify the right audience demographics or campaign strategy, an agency can provide that service and is well worth the cost.

Start Leveraging YouTube Influencer Marketing For Your Brand

YouTube continues to be one of the strongest and most attractive social media platforms for marketers. The unique long-form content combined with the huge user base and watch-time makes for the perfect combination of engagement and messaging flexibility.

If you’re ready to start taking advantage of this incredible branding opportunity, contact HireInfluence today. With nearly 15 years of experience and one of the original YouTube influencer marketing agencies, we have the expertise to handcraft YouTube campaigns that get superior results.