kompaniya

/kompanija/

Cases

SingularPluralWhen to use it
nominativekompaniyathe companykompaniyalathe companiesthe plain dictionary form — the doer of the sentence
genitivekompaniyanıthe company'skompaniyalanıthe companies'the owner — whose it is
accusativekompaniyanıthe company (as the object)kompaniyalanıthe companies (as the object)a specific, known object — whom or what
dativekompaniyağato the companykompaniyalağato the companiesdirection or recipient — to where, to whom
locativekompaniyadaat / in the companykompaniyaladaat / in the companieswhere it is; also having — mende bar, "I have it"
ablativekompaniyadanfrom the companykompaniyaladanfrom the companieswhere it comes from; also "than" when comparing
When to use each case
nominative
the plain dictionary form — the doer of the sentence
genitive
the owner — whose it is
accusative
a specific, known object — whom or what
dative
direction or recipient — to where, to whom
locative
where it is; also having — mende bar, "I have it"
ablative
where it comes from; also "than" when comparing

The endings are the same ones the pronouns wear — that page explains when each case is used.

With an owner

One ownedSeveral owned
mykompaniyammy companykompaniyalarımmy companies
yourkompaniyangyour companykompaniyalarıngyour companies
his / herkompaniyasıhis / her companykompaniyalarıhis / her companies
ourkompaniyabızour companykompaniyalarıbızour companies
you all'skompaniyağızyou all's companykompaniyalarığızyou all's companies
theirkompaniyalarıtheir companykompaniyalarıtheir companies

The overlap in the last rows is real, not a mistake: kompaniyaları can mean "his / her companies", "their company", or "their companies" — context decides.