You type your niche into the box, a few keywords about the kind of videos you make, and a slider for your subscriber count. The page loads not with a list of brands, but with a grid of faces, other creators whose channels look like yours. Each one is a node in a map of money, a clickable entry point into a history of branded integrations, decision-maker contacts, and the quiet rhythm of which companies are actually writing checks this quarter. This is the first screen of Sponsorbook, and it asks a simple, mercantile question: who is already paying for this?
Founded in 2026 and based in San Francisco, Sponsorbook is building a searchable database of publicly disclosed YouTube sponsorships [Sponsorbook, Unknown]. The product, which claims coverage of over one million such deals, is designed as a prospecting tool for creators and the talent agencies that represent them [Sponsorbook, Unknown]. Its wedge is intelligence, not execution. It does not take a commission on deals, positioning itself as a SaaS layer that surfaces the historical evidence and commercial contacts needed to build a pitch, rather than a marketplace that facilitates the campaign itself [Sponsorbook, Unknown] [F6S, October 2026]. For a creator scrolling through a rival's video description, the platform formalizes that act of reconnaissance, turning anecdote into a searchable business development asset.
The intelligence wedge
In a market crowded with influencer platforms promising connection, Sponsorbook's bet is on separation. Its value proposition hinges on a specific kind of friction it aims to remove: the opaque, relationship-driven hunt for sponsorship leads. The platform allows users to find brands sponsoring creators in a comparable niche, inspect the sponsored videos as evidence, and compile prospect lists [Sponsorbook, Unknown]. Directory listings suggest it also surfaces buying-cycle signals and decision-maker contacts, attempting to predict not just who sponsors, but when they might be looking to sponsor again [F6S, October 2026]. This positions it as a research terminal, a Bloomberg for the creator middle class. The business model follows the intelligence playbook, with software directory listings pointing to a freemium structure and paid plans starting at an estimated $29 per month [TopBusinessSoftware, September 2026].
A market built on public evidence
The product's feasibility is anchored in a unique characteristic of its target market: the disclosure. YouTube's advertising policies require creators to disclose paid promotions, often in the video itself or its description. This creates a vast, public corpus of commercial intent that Sponsorbook scrapes, indexes, and structures. The claim of "1M+ YouTube Sponsorships" is a declaration of this mined territory [Sponsorbook, Unknown]. The platform's utility grows with this dataset, allowing for pattern recognition across niches. Is a skincare brand experimenting with tech reviewers? Has a meal-kit company paused its gaming sponsorships? The database moves the market from gossip to geometry. For small agencies managing a roster, it offers a shared research layer, a way to systemize what was previously stored in a founder's memory or a scattered spreadsheet [F6S, October 2026].
The early-stage unknowns
As a very early-stage venture, Sponsorbook's public footprint is minimal. The available evidence identifies individuals named Elliot and Brandon working at the company but does not provide full names, founder backgrounds, or prior operating experience [F6S, October 2026]. No funding rounds, lead investors, or named paying customers are yet visible in the public record. This leaves several critical questions unanswered as the company seeks traction.
- Data edge durability. The core asset is a proprietary dataset. The risk is that the methodology for collecting and enriching sponsorship data could be replicated, or that larger platforms with direct access to deal flow could decide to build similar tools internally.
- Monetizing the middle. The creator economy is famously stratified. The platform must prove that mid-tier creators, who likely feel the business development pain most acutely, are willing and able to pay for intelligence software, moving beyond a free search tool.
- Beyond the database. The product today is a research pane. The natural expansion is into workflow, helping users not just find leads but manage outreach and track pitches. Building those features well requires a different kind of product muscle.
The company also shares a name with unrelated entities, including a separate Mumbai-based social networking company, which may create initial brand confusion [LinkedIn, Unknown].
The next twelve months
The immediate roadmap is defined by a series of concrete proofs. The first is customer validation. Sponsorbook will need to move from describing its target user to publicly naming agency or creator clients who credit the platform with closed deals. The second is team building. Filling out the leadership page with operators who have experience in data aggregation, SaaS sales to creative professionals, or the sponsorship industry would signal operational depth. The third is the evolution of the dataset itself. A million sponsorships is a starting point; the next claim will need to be about freshness, accuracy, and predictive insight,moving from a historical archive to a real-time signal.
For now, the product sits at a quiet but potent intersection. It does not promise to make anyone famous or go viral. It promises to make the business of being famous slightly more legible, to replace the cold email with a warm introduction backed by a receipt. It is betting that the creator economy's next phase is not about more distribution, but about smarter commerce. The cultural question it implicitly answers is whether the art of the pitch, even in the seemingly casual world of YouTube, is ready to be systematized. Sponsorbook is building the ledger to try.
Sources
- [Sponsorbook, Unknown] Find 1M+ YouTube Sponsorships | https://www.sponsorbook.io/
- [F6S, October 2026] Sponsorbook company listing | https://www.f6s.com/companies/sponsorship/mo
- [TopBusinessSoftware, September 2026] Sponsorbook reviews and pricing | https://topbusinesssoftware.com/products/Sponsorbook/reviews/
- [LinkedIn, Unknown] SponsorBlock and DeArrow company page | https://www.linkedin.com/company/sponsorblock