# Fiber AI, free, Cardless API trial: LinkedIn company search API

> Search for companies using filters

Fiber AI's LinkedIn company search API on its Cardless API trial plan. It costs $0.00 per 1,000 companies. It returns 11 of the 12 key fields we check: Description, Industry and type, Images, Technologies, Employees, Locations, Funding, Revenue, Domain, Followers, Contact.

- This page: https://datacircle.dev/linkedin-company-search-apis/fiber-ai/free-cardless-api-trial
- Get it: https://www.fiber.ai/pricing
- Its API docs: https://api.fiber.ai/ai-docs/companySearch.md
- Sold by: Fiber AI (https://www.fiber.ai)
- Checked: 2026-10-23

## In the answer

- Completeness: 92%
- Description: ✓
- Industry and type: ✓
- Images: ✓
- Technologies: ✓
- Employees: ✓
- Locations: ✓
- Funding: ✓
- Revenue: ✓
- Domain: ✓
- Followers: ✓
- Contact: ✓

## Price

- $ per 1,000: $0.00
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Per: result
- Also pays for: Export audience companies to CSV · Export audience prospects to CSV · from the same budget: Work email reveal · Personal email reveal · Phone number reveal · Live company fetch · Live fetch (batch start) · Company search result · People search result · Job posting search · Company count · People count · Job posting count · Agentic / natural-language search · Google Maps / local business · Investor search · Combined search · Audience build · Audience enrichment · Tracker entity check · Full reverse email lookup · Lite reverse email lookup · Kitchen Sink resolution · Hashed email lookup · Hotel search page · Hotel property lookup

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Search for companies using filters

## Data

- Keep data: a limited, non-exclusive, non-transferable, non-sublicensable right to (A) view and store the Prospect Data [...] Prospect Data and Usage Data are Confidential Information of Fiber AI. [...] After any expiration or termination of these Terms, or at any time upon request from Fiber AI, Customer will immediately return or destroy (at Fiber AI's sole direction) all materials or media containing any Confidential Information
- Use data: solely for purposes of conducting business-to-business sales, marketing, or business development activities and for Customer's other internal business purposes (the "Permitted Uses"). Customer may not resell, transfer, assign, or sublicense Customer's rights under these Terms to any third party or use the Services to run an outsourcing business or provide services for the benefit of any third party. [...] Customer (A) will not, and will ensure that Customer Personnel do not, incorporate any Prospect Data into Customer's products or services or otherwise resell, sublicense, or distribute any Prospect Data, (B) will not [...] present the Prospect Data so that it appears to be made available by any third party, (C) will process all Prospect Data in accordance with Laws, including Privacy and Data Laws [...] (F) not use the Services, including Prospect Data, to determine a consumer’s eligibility for (i) credit or insurance for personal, family or household purposes, (ii) employment or (iii) a government license or benefit or (iv) any other purpose governed by the Fair Credit Reporting Act [...] Customer will not [...] (h) develop any scripts or software applications that interact with or integrate with the Services unless first authorized in writing by Fiber AI [...] The Services are currently authorized to be used only in the United States to facilitate business-to-business sales, marketing, or business development communications with individuals in the United States

## Plan

- Pay: $0
- You get: 100 credits
- Enough for: 100 results, once
- Expires: when the 7 days pass without a card, the trial ends

## Rate limit

- Per second: 3
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: searchParams. Optional: pageSize, cursor, includeCount
- Method: POST
- Path: /v1/company-search

## About the plan

- Plan: Cardless API trial
- Who can get it: anyone with a work email, one trial per company domain, to use only in the United States

## The 191 fields the plan's answer can hold

company ID, accelerator statuses, accelerators, accelerator ID, accelerator slug, accelerator tags, accelerator year, accelerator batch, accelerator founders, accelerator description, accelerator one-liner, accelerator company name, accelerator company domain, accelerator name, accelerator domain, blog URLs, custom data, domain, contact email, phone, employee count, employee count range start, employee count range end, Facebook URL, fortune rankings, fortune ranking list, fortune ranking year, fortune ranking rank, founded, GitHub usernames, Instagram handles, last funding round, company slug, primary company slug, organization ID, category, job postings, job postings count, job postings by seniority, job postings by employment type, job postings by country, job postings by job function, job postings by industry, job postings by workplace type, description, followers, tagline, industries, industry ID, industry name, industry is primary, locations, location address, location is primary, location, specialties, consensus location, consensus location street address, consensus location neighborhood, consensus location city, consensus location state name, consensus location state code, consensus location county, consensus location postal code, consensus location country code, consensus location country name, consensus location latitude, consensus location longitude, consensus location timezone, consensus location full address, consensus location formatted address, location counts by country, market cap, NAICS code, alternative names, name, name word count, annual revenue, revenue sources, revenue fiscal year, revenue minimum, revenue maximum, standard industries, operating status, stock ticker, stock exchange, tags, total funding amount, Twitter handles, website, Wellfound slugs, YouTube URLs, matching employee count, matching office count, matched offices, company IDs, sort key, relevance score, technology spend, historical headcount, headcount snapshot date, headcount snapshots, headcount growth, CIK numbers, CAGE code, DUNS code, location count, location name, Crunchbase slug, primary role, roles, short description, long description, is subsidiary, parent company, funding round count, funding rounds, funding round type, funding round date, funding round amount, funding round valuation, exit count, investors, investor logo, investor entity type, investor name, investor company slug, investor types, acquisitions, acquisition price, acquired company name, acquisition date, best funding round, best funding round type, best funding round date, best funding round amount, best funding round valuation, funding stage, alternative industries, alternative keywords, alternative description, employee trends, employee trend function, employee trend current count, employee trend changes, logo, similar companies, similar company name, similar company industries, similar company employee count, similar company revenue, similar company logo, full funding rounds, full funding round investors, full funding round city, full funding round date, full funding round type, full funding round state, full funding round investor count, full funding round amount, full funding round country code, full funding round valuation, funding round stats, funding round stats count, total fund raised, peak valuation, unique investor count, individual investor stats, unique personal investor count, unique organizational investor count, investment stats, investments by stage, lead investment rate, lead investment count, investment count, last investment date, is investor, investor type, investor categories, technologies, platforms, ecommerce platforms, CMS platforms, CRM platforms, marketing platforms, payment platforms, stock info, role count matches, matching locations, total results, next cursor

## Fiber AI's plans (13)

- [Fiber AI, free, Cardless API trial](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/free-cardless-api-trial/llms.txt): $0.00 per 1,000, 92% complete
- [Fiber AI, free, 7-day free trial](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/free-7-day-free-trial/llms.txt): $0.00 per 1,000, 92% complete
- [Fiber AI, top-up from $3](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/top-up-from-3/llms.txt): $30.00 per 1,000, 92% complete
- [Fiber AI, $300 monthly](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/300-monthly/llms.txt): $20.00 per 1,000, 92% complete
- [Fiber AI, $900 monthly](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/900-monthly/llms.txt): $18.00 per 1,000, 92% complete
- [Fiber AI, $1,000 monthly](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/1000-monthly/llms.txt): $2.00 per 1,000, 92% complete
- [Fiber AI, $2,000 monthly](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/2000-monthly/llms.txt): $2.00 per 1,000, 92% complete
- [Fiber AI, $2,400 monthly](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/2400-monthly/llms.txt): $16.00 per 1,000, 92% complete
- [Fiber AI, $4,000 monthly](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/4000-monthly/llms.txt): $2.00 per 1,000, 92% complete
- [Fiber AI, $3,000 yearly](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/3000-yearly/llms.txt): $16.667 per 1,000, 92% complete
- [Fiber AI, $9,000 yearly](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/9000-yearly/llms.txt): $15.00 per 1,000, 92% complete
- [Fiber AI, $24,000 yearly](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/24000-yearly/llms.txt): $13.333 per 1,000, 92% complete
- [Fiber AI, contact us](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/contact-us/llms.txt): 92% complete

## Fiber AI's calls (1)

- `POST /v1/company-search`: [Fiber AI, free, Cardless API trial](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/free-cardless-api-trial/llms.txt)

## Fiber AI's APIs (9)

- [Fiber AI: email verification API pricing, 9 plans](https://datacircle.dev/validate-email-apis/fiber-ai/free-cardless-api-trial/llms.txt)
- [Fiber AI: LinkedIn company search API pricing, 13 plans](https://datacircle.dev/linkedin-company-search-apis/fiber-ai/free-cardless-api-trial/llms.txt)
- [Fiber AI: LinkedIn people search API pricing, 13 plans](https://datacircle.dev/linkedin-people-search-apis/fiber-ai/free-cardless-api-trial/llms.txt)
- [Fiber AI: LinkedIn job search API pricing, 13 plans](https://datacircle.dev/linkedin-job-search-apis/fiber-ai/free-cardless-api-trial/llms.txt)
- [Fiber AI: reverse email lookup API pricing, 9 plans, POST /v1/email-to-person/single/lite](https://datacircle.dev/reverse-email-lookup-apis/fiber-ai/free-cardless-api-trial-post-v1-email-to-person-single-lite/llms.txt)
- [Fiber AI: reverse email lookup API pricing, 9 plans, POST /v1/email-to-person/single](https://datacircle.dev/reverse-email-lookup-apis/fiber-ai/free-cardless-api-trial-post-v1-email-to-person-single/llms.txt)
- [Fiber AI: email finder API pricing, 9 plans, POST /v1/contact-details/basic-work-email](https://datacircle.dev/find-email-apis/fiber-ai/free-cardless-api-trial-post-v1-contact-details-basic-work-email/llms.txt)
- [Fiber AI: email finder API pricing, 9 plans, POST /v1/contact-details/lite](https://datacircle.dev/find-email-apis/fiber-ai/free-cardless-api-trial-post-v1-contact-details-lite/llms.txt)
- [Fiber AI: email finder API pricing, 9 plans, POST /v1/contact-details/single](https://datacircle.dev/find-email-apis/fiber-ai/free-cardless-api-trial-post-v1-contact-details-single/llms.txt)
- [Fiber AI: email finder API pricing, 9 plans, POST /v1/contact-details/turbo/sync](https://datacircle.dev/find-email-apis/fiber-ai/free-cardless-api-trial-post-v1-contact-details-turbo-sync/llms.txt)
- [Fiber AI: email finder API pricing, 9 plans, POST /v1/contact-details/batch/start](https://datacircle.dev/find-email-apis/fiber-ai/free-cardless-api-trial-post-v1-contact-details-batch-start/llms.txt)
- [Fiber AI: email finder API pricing, 9 plans, POST /v1/contact-details/exhaustive/start](https://datacircle.dev/find-email-apis/fiber-ai/free-cardless-api-trial-post-v1-contact-details-exhaustive-start/llms.txt)
- [Fiber AI: LinkedIn company data API pricing, 12 plans, POST /v1/kitchen-sink/company](https://datacircle.dev/linkedin-company-profile-apis/fiber-ai/free-cardless-api-trial-post-v1-kitchen-sink-company/llms.txt)
- [Fiber AI: LinkedIn company data API pricing, 12 plans, POST /v1/linkedin-live-fetch/company/single](https://datacircle.dev/linkedin-company-profile-apis/fiber-ai/free-cardless-api-trial-post-v1-linkedin-live-fetch-company-single/llms.txt)
- [Fiber AI: LinkedIn company data API pricing, 12 plans, POST /v1/linkedin-live-fetch/batch/start](https://datacircle.dev/linkedin-company-profile-apis/fiber-ai/free-cardless-api-trial-post-v1-linkedin-live-fetch-batch-start/llms.txt)
- [Fiber AI: LinkedIn profile API pricing, 12 plans, POST /v1/kitchen-sink/person](https://datacircle.dev/linkedin-profile-apis/fiber-ai/free-cardless-api-trial-post-v1-kitchen-sink-person/llms.txt)
- [Fiber AI: LinkedIn profile API pricing, 12 plans, POST /v1/linkedin-live-fetch/profile/single](https://datacircle.dev/linkedin-profile-apis/fiber-ai/free-cardless-api-trial/llms.txt)
- [Fiber AI: LinkedIn profile API pricing, 12 plans, POST /v1/linkedin-live-fetch/batch/start](https://datacircle.dev/linkedin-profile-apis/fiber-ai/free-cardless-api-trial-post-v1-linkedin-live-fetch-batch-start/llms.txt)
- [Fiber AI: phone finder API pricing, 9 plans, POST /v1/contact-details/premium-phone/sync](https://datacircle.dev/find-phone-apis/fiber-ai/free-cardless-api-trial-post-v1-contact-details-premium-phone-sync/llms.txt)
- [Fiber AI: phone finder API pricing, 9 plans, POST /v1/contact-details/lite](https://datacircle.dev/find-phone-apis/fiber-ai/free-cardless-api-trial-post-v1-contact-details-lite/llms.txt)
- [Fiber AI: phone finder API pricing, 9 plans, POST /v1/contact-details/single](https://datacircle.dev/find-phone-apis/fiber-ai/free-cardless-api-trial-post-v1-contact-details-single/llms.txt)
- [Fiber AI: phone finder API pricing, 9 plans, POST /v1/contact-details/turbo/sync](https://datacircle.dev/find-phone-apis/fiber-ai/free-cardless-api-trial-post-v1-contact-details-turbo-sync/llms.txt)
- [Fiber AI: phone finder API pricing, 9 plans, POST /v1/contact-details/batch/start](https://datacircle.dev/find-phone-apis/fiber-ai/free-cardless-api-trial-post-v1-contact-details-batch-start/llms.txt)
- [Fiber AI: phone finder API pricing, 9 plans, POST /v1/contact-details/exhaustive/start](https://datacircle.dev/find-phone-apis/fiber-ai/free-cardless-api-trial-post-v1-contact-details-exhaustive-start/llms.txt)

## Fiber AI: LinkedIn company search API alternatives

- [HarvestAPI, free, Free, GET /linkedin/company-search](https://datacircle.dev/linkedin-company-search-apis/harvestapi/free/llms.txt): $0.00 per 1,000, 42% complete, live
- [API Direct, free, tier, POST /v1/batch](https://datacircle.dev/linkedin-company-search-apis/api-direct/free-tier-post-v1-batch/llms.txt): $0.00 per 1,000, 25% complete, live
- [gtm-api.com, free, Sandbox, the forever free plan (1 account), POST /api/linkedin-scraping/search-companies](https://datacircle.dev/linkedin-company-search-apis/gtm-api-com/free-sandbox-the-forever-free-plan-1-account-post-api-linkedin-scraping-search-companies/llms.txt): $0.00 per 1,000, 33% complete, live
- [Generect, free](https://datacircle.dev/linkedin-company-search-apis/generect/free-to-start-post-api-v1-search-realtime-companies/llms.txt): $0.00 per 1,000, 8% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-23.

- https://api.fiber.ai/ai-docs/companySearch.md
- https://api.fiber.ai/llms-full.txt
- https://api.fiber.ai/openapi.json
- https://docs.fiber.ai/billing
- https://docs.fiber.ai/billing/pricing
- https://docs.fiber.ai/build/rate-limits
- https://docs.fiber.ai/linkedin/live-fetch
- https://www.fiber.ai/llms.txt
- https://www.fiber.ai/pricing
- https://www.fiber.ai/pricing#bulk-pricing
- https://www.fiber.ai/pricing.md
- https://www.fiber.ai/terms