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Trademark Search & Monitoring Comparison

Corsearch vs. Signa

At a glance

At a glance

Corsearch

Best for

Best for brand owners and IP professionals who want screening, clearance and watching with analyst review across many jurisdictions.

Signa

Best for

Best for developers and law firms who build trademark search, screening and monitoring into their own software or AI assistants.

Cataleo does not name a winner. Both statements come from the vendors themselves.

Full Comparison

Criterion Corsearch Signa
Starting price Not stated From $99 / month Starter, billed yearly, with 20,000 credits a month (up to 2,000 searches) and $10 per 1,000 extra credits. Growth is $399 and Scale $999 a month, also billed yearly. The page offers monthly billing and says annual billing saves up to 25%, without stating the monthly amounts. A search costs 10 credits; credit costs for screening and watches are not yet announced.
Free trial Not stated Free tier with 10,000 credits on signup and 1,000 credits a month, up to 100 searches, no card required
API Not stated Yes, a REST API with webhooks, a TypeScript SDK, agent skills and a hosted MCP server at api.signa.so/mcp
Hosting Not stated Cloud: a web app, a REST API, a hosted MCP server and agent skills
Registers and countries covered The vendor cites 190 searchable trademark registries and 240 jurisdictions and territories watched for new marks, within more than 1,000 trademark, company name, domain, design, pharma and common law databases 13 production offices with more than 40 million records: USPTO, EUIPO, WIPO, CIPO (Canada), IP Australia, IPOS (Singapore), UKIPO, INPI (France), Norway, Sweden, Switzerland, Spain and IMPI (Mexico), most synced daily and Canada and France weekly. DPMA, BOIP, JPO, KIPO, CNIPA and further offices are listed as planned.
Word, phonetic and image search Similarity search across phonetic, semantic and visual similarity in ExaMatch and NameCheck, logo and device search through LogoCheck image recognition, and an AI query assist that turns plain language into a search query Text search through five similarity channels (identical, fuzzy, embedded, phonetic and look-alike characters), each hit labelled with its match tier and the channels that found it. Image search is listed as coming soon.
Goods, services and Nice classes Clearance searches take goods and services, classes and jurisdictions as their criteria, and an AI Product Insights feature categorises products for filings Search and watches filter by Nice class, and classification endpoints list classes and goods and services and suggest and validate goods and services wording
Clearance and conflict screening Screening of candidate names and clearance of registered and unregistered marks, with regional or worldwide searches combining register and common law sources into one report and Corsearch analysts reviewing and filtering the results A documented knockout and full similarity search workflow for clearance, a Compare Marks endpoint that scores a candidate against up to 10 selected conflicts, and a Screening product open to design partners during beta. The vendor states the results are informational data and not legal advice.
Watch and alerts Automated Watch and analyst-reviewed Expert Watch across word and design marks in 240 jurisdictions and territories, LogoWatch for logos, a user-set similarity threshold and AI prioritisation of watch results In beta: five watch types (mark, portfolio, owner, class and similarity), alerts typically within a day of office publication by signed webhook or polling, and computed opposition deadlines on alerts in supported jurisdictions. Image watch is listed as coming soon.
Reports and exports Dashboards and interactive analytics in TrademarkNow, and one report for a regional or worldwide clearance search JSON responses from every endpoint and a monthly proof-of-monitoring attestation per watch, as a PDF and a JSON file
Integrations and API Not stated REST API with webhooks, a TypeScript SDK, and a hosted MCP server for Claude, ChatGPT, Cursor and VS Code; Microsoft Copilot is listed as coming soon
AI features Yes Yes
MCP-ready No stated Yes
Deployment Cloud (SaaS) more entries Cloud (SaaS), Browser-based
Onboarding Not stated Documentation and knowledge base
Integrations Not stated Claude, ChatGPT, Gemini, Cursor, Visual Studio Code

Compare more tools

Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.

The short version

Key Differences

  • Deployment Corsearch Cloud (SaaS) Signa Cloud (SaaS), Browser-based
  • MCP-ready Corsearch No Signa Yes
  • Registers and countries covered Corsearch The vendor cites 190 searchable trademark registries and 240 jurisdictions and territories watched for new marks, within more than 1,000 trademark, company name, domain, design, pharma and common law databases Signa 13 production offices with more than 40 million records: USPTO, EUIPO, WIPO, CIPO (Canada), IP Australia, IPOS (Singapore), UKIPO, INPI (France), Norway, Sweden, Switzerland, Spain and IMPI (Mexico), most synced daily and Canada and France weekly. DPMA, BOIP, JPO, KIPO, CNIPA and further offices are listed as planned.
  • Word, phonetic and image search Corsearch Similarity search across phonetic, semantic and visual similarity in ExaMatch and NameCheck, logo and device search through LogoCheck image recognition, and an AI query assist that turns plain language into a search query Signa Text search through five similarity channels (identical, fuzzy, embedded, phonetic and look-alike characters), each hit labelled with its match tier and the channels that found it. Image search is listed as coming soon.
  • Goods, services and Nice classes Corsearch Clearance searches take goods and services, classes and jurisdictions as their criteria, and an AI Product Insights feature categorises products for filings Signa Search and watches filter by Nice class, and classification endpoints list classes and goods and services and suggest and validate goods and services wording

Every line is one datapoint from the table above, picked automatically. Nothing here is written text.

The trade-offs

Strengths and Limitations

Corsearch

Strengths

  • Analyst review on clearance searches and Expert Watch, with analysts averaging 15+ years of experience as stated by the vendor
  • Logo search and logo watching through image recognition
  • Clearance combines register and common law sources in one report
  • Trademark work and brand protection against counterfeits, gray markets and domain abuse from one vendor

Limitations

  • No prices are published; access starts with a demo request
  • The official pages describe no API and no integration with IP management systems
  • The vendor does not name which 190 registries are searched

Signa

Strengths

  • Free tier with 10,000 credits on signup and 1,000 a month, no card required
  • Hosted MCP server and connectors for Claude, ChatGPT and Gemini
  • Thirteen registers in one JSON schema, most of them synced daily
  • Watch alerts carry a computed opposition deadline in supported jurisdictions

Limitations

  • Screening, listing scans and monitoring are in beta, and image search and image watch are not yet available
  • No German, Benelux, Japanese, Korean or Chinese register yet; these are listed as planned
  • Paid plans are shown billed yearly; monthly amounts are not stated on the pricing page
  • Credit costs for screening and watches are not yet announced

Plans

Pricing

Signa

  • Free $0 Per month. 10,000 credits on signup, then 1,000 credits a month, up to 100 searches, no card required.
  • Starter $99 Per month billed yearly. 20,000 credits a month, up to 2,000 searches, $10 per 1,000 extra credits, 300 requests a minute.
  • Growth $399 Per month billed yearly. 100,000 credits a month, up to 10,000 searches, $5 per 1,000 extra credits, 1,000 requests a minute.
  • Scale $999 Per month billed yearly. 500,000 credits a month, up to 50,000 searches, $2.50 per 1,000 extra credits, 3,000 requests a minute.
  • Enterprise Not stated Contact sales. Custom credits, white-label and data rights, SLA and dedicated support.
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What users say

Review Scores · opens after launch

Corsearch

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Nothing has been published here yet, and no score is shown. How a review is checked before it appears is described below.

Signa

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Nothing has been published here yet, and no score is shown. How a review is checked before it appears is described below.

How we check reviews

Before sending, the author has to confirm three things: that they have used the product themselves, that they work neither for the vendor nor for a competitor, and that nobody is paying them for the review. We also ask whether the vendor invited them to write it. That answer is required, either answer is accepted, and it stays with the review.

Every review is read by a person before it appears. An email address is required and is confirmed: we send a link to it, and a review does not reach us until the author opens that link, so a review has a sender who was reachable at least once rather than being anonymous. Where what somebody writes needs backing, we ask them for evidence that they used the product, and a review that does not get it is not published. We publish positive and negative reviews alike, we pay nothing and offer nothing for a review, and we accept none that was bought or incentivised.

What we cannot do is verify a purchase. There is no shop here and no account, so whether the author really used the tool rests on their own declaration, on whatever we ask them for, and on the plausibility of what they write. We say so rather than implying a check that does not exist.

A vendor cannot buy a review, and cannot have one removed or changed because they dislike it. We remove or edit a review only if it breaks our rules or the law, for example a false statement of fact. Paid placement has no effect on which reviews appear or on any score.

Read the full version on our methodology page

Where this comes from

Where this comes from

Corsearch https://corsearch.com/ · checked against the official source on 2026-11-05

Signa https://signa.so/ · checked against the official source on 2026-11-05

This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.