Primary markets allow companies to raise fresh capital from investors. There are three main methods of raising funds in primary markets: public issues like IPOs and FPOs, rights issues which allow existing shareholders preemptive rights to purchase new shares, and private placements where companies directly sell new shares to select investors. Public companies, banks, financial institutions, and governments use primary markets to mobilize capital through securities like shares issued via prospectuses, right offers, or private placements to investors. Intermediaries help facilitate the sale and purchase of new securities in primary markets.