Sean Nowlin spent sixteen years watching programmatic advertising evolve from both sides of the table. He ran campaigns at Progressive Insurance, managed programmatic for brands like StockX and Danone at Code3, and consulted through his own firm. Somewhere along the way, he noticed a gap that kept widening: connected TV was eating linear television's lunch, but the tools being used to buy and measure it were built for banner ads.
That observation became SpotlightIQ, the B2B CTV platform he founded in 2024. The premise is specific: B2B marketers need account-level targeting and reporting on premium streaming inventory, not household-level reach metrics borrowed from consumer campaigns. It's a bet that the measurement problem, not the media problem, is what's holding B2B CTV back.
The Measurement Gap Nobody Wants to Discuss
The timing matters. According to the IAB's 2026 Outlook Study, cross-platform measurement is now a top priority for 72% of advertisers, up from 64% in 2025. CTV ad spend is projected to grow 13.8% this year, outpacing most digital channels. The money is flowing in. The accountability infrastructure is still catching up.
Nowlin's recent MarTech piece on incrementality testing cuts to the core of the problem. Most CTV incrementality tests fail before a single ad runs, he argues, because they compare people who saw the ad with those who didn't, then report the difference as uplift. That sounds rigorous until you realize the two groups were never equivalent.
People who saw your CTV ad stream more, were deliberately targeted, and may already be interested in your product. You're measuring targeting effectiveness, not ad impact.
Real incrementality requires deciding before the campaign launches which accounts you deliberately won't advertise to. That withheld group becomes your control. Everything the exposed group does above that baseline is incremental. Skip this step, and no amount of post-hoc analysis can fix the data.
Why B2B Got Left Behind
The B2B measurement problem is structural. Demandbase's 2026 CTV playbook notes that 73% of B2B brands have moved beyond CTV experimentation and integrated it into core performance marketing. Only 4% say they have no plans to use the channel. The adoption curve is steep.
But streaming platforms know which household is watching. They cannot tell you whether the viewer is a VP of Engineering or someone else in the same home. For consumer brands selling to households, this is fine. For B2B marketers trying to reach specific decision-makers at target accounts, it's a fundamental limitation.
Nowlin's approach at SpotlightIQ is to layer account-based targeting on top of premium streaming inventory. You upload your target account list. The platform delivers ads on Hulu, Disney+, ESPN, and other premium networks, targeted to decision-makers at those accounts. Then it reports on what moved in your pipeline, not just what was delivered.
The model inverts the typical CTV buying process. Instead of starting with reach and hoping the right people see the ad, you start with the accounts you care about and measure whether exposure correlates with pipeline activity.
The CFO Question
A LinkedIn post from Nowlin last year captures his philosophy. He saw a B2B ad from a programmatic platform bragging that a client "doubled monthly spend" after using their service. His response: that's not a success metric. Did the client see incremental sales? Did they increase LTV? Are they getting lift in brand awareness?
The critique lands because it reflects how CFOs actually evaluate marketing investments. Spend growth is an input, not an outcome. If your measurement framework can't connect media exposure to business results, you're asking finance to take your word for it.
In a year where the IAB reports that repeat purchases nearly doubled as a priority (from 13% to 25% since 2024), the pressure for profitable growth is reshaping how budgets get allocated.
Nowlin's MarTech contributions consistently return to this theme. His piece on using CRM data for B2B CTV targeting argues that the channel isn't about broad reach. It's about precise segmentation, quality first-party data, and retargeting strategies built for long sales cycles. His ABM integration guide focuses on sequencing CTV with sales outreach and measuring pipeline influence, not impressions.
The Panel and the Platform
Nowlin joined the opening panel at MarTech's May 2026 conference, alongside Angela Vega from Expedia Group, Alec Haase from Hightouch, and Ed Poppe. The topic was creating meaningful customer engagement without sacrificing trust. His contribution focused on where programmatic fits for B2B: reaching buying committees on premium streaming inventory without degrading viewer experience.
The panel positioning is telling. CTV for B2B is no longer a fringe topic. It's opening-session material at a major industry conference. The question has shifted from "should we test this?" to "how do we make it work?"
Teads' 2026 CTV trends analysis frames the broader context: CTV now accounts for a larger share of TV viewership than cable and broadcast combined. Ad-supported tiers have become the norm. The channel is projected to overtake traditional TV by 2028. But scale brings scrutiny. After years of audience expansion and rapid budget increases, brands are being forced to ask harder questions about whether CTV delivers results that search and social can't achieve.
What the Model Requires
The SpotlightIQ approach makes specific demands. You need a clean target account list. You need CRM data that can be matched to streaming audiences. You need a measurement framework that connects exposure to pipeline outcomes, not just delivery metrics. And you need patience: B2B sales cycles don't compress because you added a new channel.
Nowlin's incrementality testing framework requires holding back a portion of your target accounts as a control group. That means deliberately not advertising to accounts you want to reach, which feels counterintuitive until you realize the alternative is spending money without knowing whether it worked.
The math is straightforward. If your exposed accounts convert at 8% and your control accounts convert at 6%, your incremental lift is 2 percentage points. If you're spending $50,000 per month on CTV and that 2-point lift translates to $200,000 in pipeline, you have a number your CFO can evaluate. If you can't run that test, you're back to asking finance to trust your judgment.
The Bet
Nowlin is betting that B2B marketers will pay for account-level precision and pipeline-connected measurement. It's a bet against the commodity DSP model, where CTV is just another line item bought on CPM and measured on completion rate. It's a bet that the CFO-safe approach, showing assumptions up front and connecting spend to outcomes, will win budget over the black-box alternative.
The Cleveland-based founder brings an operator's perspective to a channel that's been dominated by platform vendors and agency intermediaries. His MarTech contributions read like internal memos: here's the test design, here's what can go wrong, here's how to defend the result in a budget conversation.
Whether SpotlightIQ scales depends on whether enough B2B marketers share his frustration with household-level targeting and impression-based reporting. The early signals suggest they do. The harder question is whether the measurement infrastructure can keep pace with the spend growth. If it can't, CTV becomes another channel where marketing claims results and finance remains skeptical.
Nowlin's work suggests he's building for the skeptics.
