on solid ground

Translations
на твёрдой почве
After the merger, the company is on solid ground financially.
После слияния компания находится на твёрдой финансовой почве.
Definitions
In a stable, secure, or reliable situation; having a firm basis or foundation, often used metaphorically to indicate confidence or certainty in a particular context.
Words
on

preposition
на
solid

adjective
твердой
ground

noun
почве