You can buy a premium package. It's the salaries data in CSV format (will all companies names disclosed). The price is Rp 3 million. It's a subscription package for a year. Send an email to email@example.com to purchase the data.
Read more about PredictSalary Business Model.
Only Gojek, Shopee, Tiket.com, Traveloka, Tokopedia, Bukalapak companies are disclosed by default.