벨기에에서 Echo를 사용하는 기업

curl --request POST \
--url "https://api.theirstack.com/v1/companies/search" \
--header "Accept: application/json" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <api_key>" \
-d "{
  \"company_technology_slug_or\": [
    \"echo\"
  ],
  \"company_country_code_or\": [
    \"BE\"
  ]
}"