Manual time: 30 min per company is an example input, not a guaranteed research duration or a claim that every source can be accessed.
Data costs (example rates, not AdaSignal pricing): $5 per-record lookup + $0.30 email check + $2 contact-database access per company are example rates teams commonly pay outside vendors. Replace them with your own. They are not what AdaSignal charges and not AdaSignal services: Ada uses no breach data, and people-search sources are off unless you choose to add them.
Contact coverage: No verification or yield rate is assumed. Names and exact channels need evidence; research may leave fields unresolved.