United States
Cass Martin is a U.S.-based certified personal trainer and fitness creator whose Instagram presence anchors a macro-level platform footprint. Her content is…
Total Followers +0.0%
2.4M
Across Instagram, YouTube, TikTok
Primary Platform
1.9M followers · 80% of audience
Engagement
4.6%
vs. 1.5% category median
Sponsorship Tier
Macro
Est. $23K–$54K / IG post
| Window | YouTube | TikTok | Combined | |
|---|---|---|---|---|
| Last 7 days | +1K +0.1% | +0 +0.0% | +0 +0.0% | +1K |
| Last 30 days | +0 +0.0% | +0 +0.0% | +0 +0.0% | +0 |
| Last 90 days | -39101 -2.0% | -94 -0.1% | +0 +0.0% | -39195 |
| Last 365 days | -39101 -2.0% | -94 -0.1% | +0 +0.0% | -39195 |
Daily follower snapshots from CreatorDB's longitudinal index.
| Brand | Type | Platform | Date | Performance vs. baseline |
|---|---|---|---|---|
| NordicTrack Sponsorship | Sponsored content | YouTube | Sep 2025 | — |
| F45 Training Fitness | Brand ambassador | Long-term | — | |
| LYCIT Activewear Activewear / Fashion | Sponsored content | Long-term | — |
Cass Martin is a U.S.-based certified personal trainer and fitness creator whose Instagram presence anchors a macro-level platform footprint. Her content is built around structured strength training — workout posts routinely break down exercises by sets and rep schemes for movements like incline hammer curls, Bulgarian split squats, and sumo dumbbell squats, giving her feed a practical, coach-on-screen quality rather than purely aspirational aesthetics. She rose through the fitness influencer space emphasizing a muscular, performance-oriented physique at a time when that look was gaining mainstream traction among women, and she built an early association with F45 Training that signaled her credibility within the functional fitness community. Her engagement rate sits meaningfully above the category median, a signal that her audience treats her content as instructional rather than passive scroll fodder.
Her audience skews heavily female — roughly three quarters — with the 25-to-34 age band as the plurality, a demographic that tends to have both disposable income and a serious interest in self-directed fitness programming. Her long-running NordicTrack ambassadorship fits that profile cleanly: connected home fitness equipment at a premium price point maps well onto working women who train consistently but value convenience. She blends occasional lifestyle and hair content into an otherwise workout-heavy feed, which adds texture without diluting her core positioning. YouTube remains a largely dormant channel for her, making Instagram and TikTok the operative surfaces for brand partners. As the home fitness category matures and brands compete for credible trainer voices, Martin's combination of high engagement, a loyal female-majority audience, and a demonstrably structured content approach positions her as a durable mid-to-upper tier partner rather than a trend-dependent one.
Cass Martin reaches an audience concentrated in United States primarily through Instagram, and is best activated via long-form YouTube integrations, Instagram Reels and Stories, TikTok branded content. Their sponsorship history skews toward Fitness, Activewear / Fashion, a clear signal of fit for brands in those categories. Demonstrated partners include NordicTrack and F45 Training. Engagement on Instagram runs around 4.6%, pointing to an audience suited to category-relevant, mid-funnel brand campaigns rather than pure-reach buys.
Benchmark estimates for a creator at Cass Martin's tier (Macro, 2.4M combined followers, United States). Pulled from CreatorDB's category benchmarks.
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Yes, Cass Martin lists herself as a NordicTrack Ambassador directly in her Instagram bio. Her partnership with the brand spans sponsored content and she regularly incorporates NordicTrack equipment into her workout posts. The deal also connects to iFit, NordicTrack's connected fitness subscription platform.
Cass Martin features the NordicTrack X24 in her content, referencing it in her hashtags alongside her ambassador role. The X24 is one of NordicTrack's high-incline treadmill models, which fits her strength and conditioning programming style. It appears regularly as part of her branded fitness content.
Cass Martin posts structured strength training routines that include specific exercises, sets, and rep schemes — lower body days typically feature goblet squats, Bulgarian split squats, sumo dumbbell squats, and Romanian deadlifts, while upper body days focus on biceps and triceps work. Her programming follows a traditional hypertrophy approach aimed at helping her audience build lean muscle. She frames the overall goal around getting lean, strong, and confident.
Cass Martin has an F45 Training brand partnership, using both the #f45training and #f45partner hashtags across her content. F45 is a high-intensity group fitness franchise with studios worldwide. The partnership complements her certified personal trainer background and broader fitness brand.
Cass Martin has promoted Lycit Activewear in her workout posts, tagging the brand in her content. Alongside her NordicTrack ambassador role, activewear partnerships are a natural fit given that her audience is overwhelmingly female and falls squarely in the core activewear-buying demographic. These collaborations show up consistently in her sponsored content mix.
Yes, Cass Martin is a certified personal trainer — she states this credential explicitly in her TikTok bio. That professional background shows in the way she structures her workout posts, specifying exact rep schemes and exercise progressions rather than just filming general movement content. It gives her fitness advice a level of authority that resonates with her predominantly female audience.
Cass Martin has a YouTube channel, but it has been largely inactive with no new uploads for many months as of mid-2026. Her primary active platforms are Instagram and TikTok, where she posts workout routines on a regular basis. Her YouTube subscriber base is also a fraction of her Instagram following, making Instagram the clear center of her content operation.
iFit is NordicTrack's connected fitness subscription service that streams trainer-led workouts directly to compatible machines. Because Cass Martin is a NordicTrack ambassador, she promotes iFit as part of the same partnership, tagging it alongside the NordicTrack X24 in her content. It ties her personal training style into the broader interactive fitness ecosystem the brand has built.
Cass Martin is represented by IMF Talent for brand partnerships, with a contact email listed directly in her Instagram bio. As a Macro-tier fitness creator whose engagement runs well above the category average, she regularly partners with fitness equipment, activewear, and wellness brands. Brands targeting an audience of primarily US-based women in the 25–44 age range would go through that agency.
Cass Martin has built an audience of well over 1.9 million followers on Instagram, placing her in the Macro creator tier. What makes her following stand out is that her engagement rate runs significantly above the category median for fitness accounts at her size, meaning her audience is genuinely active rather than just large.
Stats (followers, engagement, audience demographics, growth) are pulled live from the CreatorDB API covering YouTube, Instagram and TikTok. Bio and FAQ content is AI-assisted; news items are sourced from cited public press at generation time. Read the full methodology →
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