Venture capital firms generally demand a number of rights to protect their investments.

Venture capitalists usually receive shares of preferred stock when they invest in a company, while the founders and other initial investors hold common stock.  Of course, if you raise successive rounds from venture capital firms, you will likely end up with several different series of preferred stock with different rights and preferences.  Preferred stock has certain advantages over common stock, particularly dividend and liquidation preferences.  This means that if the company decides to distribute dividends to its stockholders, or sell its assets and distribute the proceeds to its stockholders, the holders of preferred stock will have priority over the common stockholders.  They will be entitled to receive some portion (or even all) of the dividend or sale proceeds before any of the common stockholders receive any money at all.

Preferred stock will probably have better voting rights as compared to common stock.  For example, the company will have to get approval from the holders of a certain percentage of the preferred shares to take major corporate actions, such as approval of the annual budget, amendment of articles or bylaws, liquidation of the company, creation of a new class of securities with rights equal to or better than the preferred stock, sale of the company or acquisition of another company.  This structure lets the venture capital firm have a say in decisions that will have a large impact on the company.

The venture capital firm will also likely demand representation on the company's board of directors.  The number of members will vary depending on the current structure of the company and the amount of capital invested by the venture capitalists, but at least one, and often more than one, spot on the board will probably be reserved for members elected or appointed by the venture capital firm.

Also, venture capital investors will want information and reports about the company so it can track its investment.  For example, the company will likely have to deliver its quarterly and annual unaudited financial statements.  Many venture capital firms will demand audited financial statements, which can be a significant expense for the company.  Plus, venture capital investors will expect some other rights, such as the right to force the company to register its common shares with the Securities and Exchange Commission under some circumstances or to participate in any registration initiated by the company (registration rights), the option to purchase shares of stock of the company that other stockholders want to sell (right of first refusal), the right to purchase any new shares issued by the company (preemptive rights) and an adjustment of the conversion to common stock price in the event the company sells stock at a lower valuation (anti-dilution protection).

Looking at all of the ownership and control pieces likely to be obtained by a venture firm, it will probably end up exercising a lot of control over the company.  Such is the price of venture capital.  However a venture capital firm will probably allow the day-to-day operations of the company to continue to be handled by the business people.