Cast Iron Media adds Reds, Royals, Cardinals and Nationals streaming inventory

Cast Iron Media is expanding into team-owned streaming across four MLB markets, giving advertisers new access to local fan audiences on REDS.TV, ROYALS.TV, CARDINALS.TV and NATIONALS.TV. The move extends the company’s strategy to package premium sports inventory as teams build more direct-to-fan media businesses.

Why it matters: - Team-owned streaming is becoming a bigger part of the sports media mix as clubs build direct relationships with fans. - Cast Iron Media’s expanded inventory gives advertisers another way to reach local sports audiences in premium, brand-safe environments. - The new partnerships deepen access to high-engagement MLB fan bases in the Midwest and East Coast.

What happened: - Cast Iron Media announced new partnerships with the Cincinnati Reds, Kansas City Royals, St. Louis Cardinals and Washington Nationals. - The company will represent advertising inventory across the teams’ streaming platforms: REDS.TV, ROYALS.TV, CARDINALS.TV and NATIONALS.TV. - The announcement was made Aug. 6, 2026, from White Plains, N.Y.

The details: - Cast Iron Media said the expanded portfolio gives advertisers access to team-controlled viewing environments tied to highly engaged local fan bases. - The company said the strategy is built around “home team” streaming inventory as professional sports organizations invest more in owned media and direct-to-consumer platforms. - Dave Clark, CEO of Cast Iron, said sports teams are becoming media companies with direct relationships to passionate audiences. - Clark said the combined MLB inventory makes it easier for advertisers to align with local fan passion in trusted environments. - Aaron Eisel, Cincinnati Reds senior vice president of revenue, said REDS.TV creates another way to serve Reds fans and opens new brand-partnership opportunities. - Eisel said Cast Iron Media understands the value of local fan engagement and will help connect advertisers with one of baseball’s most loyal audiences. - Cast Iron Media said team-owned streaming inventory is increasingly valuable because fan engagement is spread across linear TV, streaming, social platforms and owned team channels. - Cast Iron Media said it aggregates premium sports inventory so advertisers can reach fans in contextually relevant and brand-safe placements. - The company said its home team inventory strategy also helps clubs monetize streaming audiences and create new revenue streams from owned content and direct fan relationships.

Between the lines: - The move reflects a broader shift in sports media from broadcast-only distribution to a more fragmented mix of owned and streamed properties. - Cast Iron Media is positioning itself as the intermediary that simplifies that fragmentation for advertisers and teams. - The MLB additions suggest the company sees local streaming as a scalable category, not a one-off partnership model.

What's next: - Cast Iron Media expects to keep expanding its home team inventory portfolio throughout the 2026-2027 season. - The company said more team and market announcements are planned in the coming months.

The bottom line: - Cast Iron Media is betting that team-owned streaming will become a bigger ad marketplace as sports teams keep building direct-to-fan media businesses.