I really like Viant Technology's support team; they help create the reports I need to feed our analysts at the agency. The initial setup was pretty simple, and it was a pretty quick stand up of the technology and placing buys. Review collected by and hosted on G2.com.

Nothing to dislike Review collected by and hosted on G2.com.

The platform is extremely easy to use and my reps are extremely responsive when I need any assistance or when I need help with strategy + optimizations. Review collected by and hosted on G2.com.

No real downside from my vantage point other than maybe some of the reporting tools give differing information. Review collected by and hosted on G2.com.

Powerhouse in CTV activation and insights. Performance insights across channel mixes is also a strong component for advertisers focused on ROI. Onboarding and support as well as the UX being easy to navigate is helpful! Review collected by and hosted on G2.com.

The AI tool for media planning if you already have a detailed brief could use more robust or in depth features Review collected by and hosted on G2.com.

CTV audience, transparency - no hidden fees and Cookieless advertising. Review collected by and hosted on G2.com.

Reporting is very old way and finding metrices can be tricky. Review collected by and hosted on G2.com.

Viant's extensive platform and continuous hunger to always be top of market with modern cutting edge technology makes them a stand out partner. We appreciate them working either closely or directly with premium publishers to ensure we get the best inventory and pricing in addition to well thought out research analysis and brand studies for our clients. Our account team usually has great customer service and is very detailed in making sure we are happy with our product and the service. The ease of implementation is great, and the platform is easy to use. We only use managed service but when reviewing tutorials on activating ourselves, it doesn't seem that bad. We love the easy integration of certain pixels for our tourism clients. Review collected by and hosted on G2.com.

Viant sometimes can feel limited in certain RFP's for pushing technology and how we aren't able to append certain pixels on CTV placements. Review collected by and hosted on G2.com.

I like that it has essentially an additional level of control. Most ad platforms have "campaign, ad set, ad" levels, however Viant has a fourth that offers a WIDE variety of capability. Customer Support has been fantastic. Ease of integration is also a huge thing we're going to be implementing. Review collected by and hosted on G2.com.

Reporting section is very unclear, especially when compared to any other ad platform. The ui is old, you can tell it wasn't designed with user experience in mind and the learning curve seems unnecessary.

it's also VERY annoying that you have to sign in and receive a confirmation code in your inbox every single time. Review collected by and hosted on G2.com.

Co-managed option is great for a balance of visibility into performance and managing internal team bandwidth Review collected by and hosted on G2.com.

Export to dsp capability, but this is a new offering Review collected by and hosted on G2.com.

Viant makes it surprisingly easy to launch omnichannel campaigns, with a clean UI and intuitive workflow that shortens the ramp-up time for new users. We use the platform frequently across CTV, display, and mobile, and the ease of implementation was a big plus—it integrated smoothly with our existing data sources and ad tech stack.

The platform’s cookieless targeting and people-based approach are future-proof, delivering strong performance even without third-party cookies. Reporting is detailed yet accessible, and we really value the transparency of log-level data.

On top of that, customer support has been excellent—the Viant team is responsive, knowledgeable, and proactive in helping us troubleshoot and improve campaign performance. Integrations with first-party data and measurement partners are straightforward and allow for scalable personalization and attribution. Review collected by and hosted on G2.com.

The learning curve can be steep for new users—especially when navigating more advanced features like custom reporting or log-level data exports. While the UI is improving, some workflows (like setting up segments or pulling certain performance reports) still feel less intuitive than other DSPs. Additionally, support documentation could be more robust, especially for newer functionalities or integrations. Review collected by and hosted on G2.com.

The campaigns spend and perform really well — I use it all the time! It's always fast and easy to use, even for reporting. Customer service is top-notch! Whenever we have a question, we can reach out to the team by email, and they always help us figure things out. Review collected by and hosted on G2.com.

I can't see the type or level of access I have on my account. Review collected by and hosted on G2.com.

The creative upload function is a SAVIOR! I utilize it all the time and it is very straightforward on how to use it. The setup process in general is simple and easy to follow, yet delivers great results and has advanced reporting capabilities! Our reps are helpful and reply quickly if any issues come up pre or post-launch! I highly recommend Viant! Review collected by and hosted on G2.com.

The forecaster tool is not as accurate and it takes a while for audiences to populate Review collected by and hosted on G2.com.