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Cobalt shows you the revenue leak. Sigil shuts it down, seller by seller.
Sigil matches the right enforcement tactic to each unauthorized reseller, so authorized partners stay protected, buy-box revenue comes back where it belongs, and your customers get the brand experience you've built.
30 minutes. No long contracts. Full refund inside 30 days.
WHAT our CUSTOMERS TYPICALLY SEE
1 week
to first measurable impact on your listings
80%
average removal rate by 6 months
99%
lifetime removal rate across enforced sellers
TRUSTED BY BRANDS THAT TAKE THEIR CHANNEL SERIOUSLY
HOW IT WORKS
No two sellers are the same. We match the right tactic to the right seller.
Most brand-protection vendors lead with a cease-and-desist. We don't. Sigil starts with the cheapest, least-adversarial move, and escalates one rung at a time only when a seller forces the issue.
Friendly notices sent through Amazon Seller Central. The platform sellers actually monitor, so they have to respond. Roughly 30% of sellers come down at this stage alone, with no escalation needed.
We gather evidence, ask probing questions, and confirm material differences to support your claims.
We submit legitimate, high-quality complaints using material-difference arguments that marketplaces recognize.
Our team escalates cases internally when needed to ensure reliable takedowns.
Formal C&D letters for persistent offenders to lock down compliance.
YOU SET THE RULES, WE DO THE WORK
Sigil handles the day-to-day. You hold the guardrails.
You stay in charge of strategy and tone. Sigil's team handles the steady, unglamorous work of finding sellers, sending notices, filing complaints, and chasing them down.
YOUR GUIDELINES
Exception lists, escalation thresholds, tone.
You tell us which sellers to spare, how aggressive to get, and where to draw the line. We follow your playbook, not ours.
REGULAR CHECK-INS
A dedicated Customer Success team.
Ongoing meetings with a real human who knows your catalog. Review what's been removed, what's outstanding, what's next.
MONTH TO MONTH
No long contracts. Full refund in 30 days.
Pay monthly. If the work isn't earning its keep inside the first 30 days, we refund you in full, no friction.
IN THEIR WORDS
From brand leaders who are doing the work alongside us.
Hundreds of brands trust Sigil to keep their listings clean. Here's what a few of them have told us.
“Sigil was the first solution we found to remove Amazon 3P sellers. For years, I could not find anything.”
Domenick Scherpf
Director of eCommerce, EBOOST
“I cannot recommend Sigil enough to anyone seeking a reliable and effective solution to eliminate unwanted sellers on Amazon. Thanks to their invaluable assistance, we can focus on what we do best, confident that our brand is protected.”
John Cramer
CEO, Raw Elements
“Sigil is super quick and affordable. We've already seen major improvement in our eCommerce sales, especially on Amazon, within our first 2 weeks. We also love the ease of the platform and how user-friendly it is.”
Ginny Hampton
Performance Marketing Manager, Tru Earth
“Sigil is amazing. They are truly a customer-focused company and have saved me thousands of dollars a month.”
Joseph Blanch
CEO, GöBe Kids
“Working with Sigil is a pleasure: courteous, detailed, and genuinely focused on helping customers. They prioritize meaningful solutions over unnecessary services and continuously improve their offerings.”
Candice Nicole
Founder & President, HUmineral
Start with a 30-minute strategy call.
Pricing is transparent and based on the number of products monitored.
No long contracts. Full refund inside 30 days.