[Home](./index.md) > [bitburner](./bitburner.md) > [Corporation](./bitburner.corporation.md) ## Corporation interface Corporation API **Signature:** ```typescript export interface Corporation extends WarehouseAPI, OfficeAPI ``` **Extends:** [WarehouseAPI](./bitburner.warehouseapi.md), [OfficeAPI](./bitburner.officeapi.md) ## Methods

Method	Description
[acceptInvestmentOffer()](./bitburner.corporation.acceptinvestmentoffer.md)	Accept the investment offer. The value of offer is based on current corporation valuation.
[bribe(factionName, amountCash)](./bitburner.corporation.bribe.md)	Bribe a faction. You must satisfy these conditions: - The corporation valuation must be greater than or equal to a threshold. You can use [getCorporation](./bitburner.corporation.getcorporation.md) and [getConstants](./bitburner.corporation.getconstants.md) to get this information. - You must be a member of the specified faction. - The specified faction must offer at least 1 type of work. You can use [getFactionWorkTypes](./bitburner.singularity.getfactionworktypes.md) to get the list of work types of a faction.
[buyBackShares(amount)](./bitburner.corporation.buybackshares.md)	Buyback shares. Spend money from the player's wallet to transfer shares from public traders to the CEO.
[canCreateCorporation(selfFund)](./bitburner.corporation.cancreatecorporation.md)	Return whether the player can create a corporation. Does not require API access.
[createCorporation(corporationName, selfFund)](./bitburner.corporation.createcorporation.md)	Create a Corporation. You should use [canCreateCorporation](./bitburner.corporation.cancreatecorporation.md) to check if you are unsure you can do it, because it throws an error in these cases: - Use seed money outside BitNode 3. - Be in a BitNode that has CorporationSoftcap (a BitNode modifier) less than 0.15.
[expandCity(divisionName, city)](./bitburner.corporation.expandcity.md)	Expand to a new city.
[expandIndustry(industryType, divisionName)](./bitburner.corporation.expandindustry.md)	Expand to a new industry.
[getBonusTime()](./bitburner.corporation.getbonustime.md)	Get bonus time. Bonus time is accumulated when the game is offline or if the game is inactive in the browser. Bonus time makes the corporation progress faster.
[getConstants()](./bitburner.corporation.getconstants.md)	Get corporation-related constants.
[getCorporation()](./bitburner.corporation.getcorporation.md)	Get corporation data.
[getDivision(divisionName)](./bitburner.corporation.getdivision.md)	Get division data.
[getIndustryData(industryName)](./bitburner.corporation.getindustrydata.md)	Get constant data of an industry.
[getInvestmentOffer()](./bitburner.corporation.getinvestmentoffer.md)	Get an offer for investment based on current corporation valuation.
[getMaterialData(materialName)](./bitburner.corporation.getmaterialdata.md)	Get constant data of a material.
[getUnlockCost(upgradeName)](./bitburner.corporation.getunlockcost.md)	Get the cost to unlock a one-time unlockable upgrade.
[getUpgradeLevel(upgradeName)](./bitburner.corporation.getupgradelevel.md)	Get the level of a levelable upgrade.
[getUpgradeLevelCost(upgradeName)](./bitburner.corporation.getupgradelevelcost.md)	Get the cost to unlock the next level of a levelable upgrade.
[goPublic(numShares)](./bitburner.corporation.gopublic.md)	Go public.
[hasCorporation()](./bitburner.corporation.hascorporation.md)	Return whether the player has a corporation. Does not require API access.
[hasUnlock(upgradeName)](./bitburner.corporation.hasunlock.md)	Check if you have a one-time unlockable upgrade.
[issueDividends(rate)](./bitburner.corporation.issuedividends.md)	Issue dividends.
[issueNewShares(amount)](./bitburner.corporation.issuenewshares.md)	Issue new shares.
[levelUpgrade(upgradeName)](./bitburner.corporation.levelupgrade.md)	Level up an upgrade.
[nextUpdate()](./bitburner.corporation.nextupdate.md)	Sleep until the next Corporation update happens.
[purchaseUnlock(upgradeName)](./bitburner.corporation.purchaseunlock.md)	Unlock an upgrade.
[sellDivision(divisionName)](./bitburner.corporation.selldivision.md)	Sell a division.
[sellShares(amount)](./bitburner.corporation.sellshares.md)	Sell shares. Transfer shares from the CEO to public traders to receive money in the player's wallet.