A venture capital fund is a limited partnership (occasionally an LLC) typically structured with a 10-year life that holds capital commitments from Limited Partners (LPs). It deploys investments into startups during its first 4-5 years (the "investment period"), manages and supports portfolio companies during the back half (the "harvest period"), and distributes proceeds to LPs as portfolio companies exit through acquisitions, IPOs, or secondary sales. It is the structural unit of the venture capital industry, and every VC firm's competitive dynamics, decision-making, and timing pressure flow from the constraints of the fund lifecycle.
The standard fund lifecycle:
Gross margin is revenue minus cost of goods sold (COGS) expressed as a percentage of revenue. It represents the portion of revenue available to cover operating expenses (sales, marketing, engineering, G&A) and ultimately produce profit. Gross margin varies dramatically by business model: SaaS typically 70-85%, physical goods 20-50%, marketplaces variable by take rate, services 40-70%. It's one of the most-important indicators of business model quality because operating costs are largely fixed at scale, and gross margin determines the ceiling on profitability. It distinguishes economically scalable business models from ones that struggle to ever become profitable.
The calculation:
Basic formula:
Startup investment is the deployment of capital into early-stage private companies in exchange for equity. It is viewed simultaneously from two perspectives: the founder side is raising the capital to build and scale the company; the investor side is allocating to a high-risk, high-variance asset class with the expectation of outsized returns from a small minority of investments. It is the broader frame that contains both startup funding (the founder-side activity) and the private-investor categories (angels, VCs, family offices, corporate venture) that supply the capital.
The math of startup investment is governed by a power-law distribution that shapes every decision in the asset class. Across a portfolio of venture-bac...
Startup funding is the capital a startup raises from outside sources to operate, build a product, and grow. It is drawn from a menu of options that includes equity investment (angels, venture capital, accelerators), convertible instruments (SAFEs, convertible notes), debt (venture debt, lines of credit), non-dilutive sources (grants, R&D credits), and crowdfunding. It is distinct from bootstrapping, where the founders fund the company from savings and revenue, and distinct from the specific progression of named rounds (pre-seed, seed, Series A, and beyond), which is covered by startup funding stages.
The funding source you pick determines what kind of company you are obligated to become. Venture capital and angel equity buy ...
Paid search is the practice of bidding on keywords to display ads at the top of search engine results pages. Ad formats include text, responsive, and shopping ads, with users signaling active intent by typing a query and pricing set in real time by auction (max bid multiplied by Quality Score equivalent). It is the workhorse of paid acquisition for any business whose customers actively search for what they sell, and the channel where intent signals are richest.
The two major platforms by spend are Google Ads (running on Google Search, Search Partners, and Google Shopping) and Microsoft Ads (running on Bing, Yahoo, AOL, and DuckDuckGo via their partnership). Google holds roughly 83 percent of global search market share in 2025, w...
Employees and independent contractors are distinct legal categories with fundamentally different tax treatment, labor protections, benefits eligibility, and company obligations. The IRS and Department of Labor apply multi-factor tests to determine correct classification. Misclassification (treating employees as contractors to save payroll taxes and benefits costs) carries significant penalties: back taxes, interest, fines, lawsuits, and reputational damage. It's one of the most common legal errors at growing startups.
The core distinctions:
| Dimension | Employee (W-2) | Contractor (1099) |
|---|---|---|
| Tax form | W-2 (employer withholds taxes) | 1099-NEC (no withholding) |
| Payroll taxes | Company pays half (~7.65%) | Contractor pays full ... |
EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) is the measure of operating profitability calculated by adding those items back to net income. It's used widely in valuation (EBITDA multiples for mature companies and PE transactions), debt analysis (debt-to-EBITDA ratios), and cross-company benchmarking, because it removes effects of capital structure and tax jurisdiction. EBITDA is most relevant at later-stage and physical-asset-heavy businesses, and less relevant at early-stage SaaS where contribution margin and unit economics matter more. It is the most-discussed financial metric at mature companies.
The calculation:
Method 1: Net Income + Interest + Taxes + Depreciation + Amortization
Method 2: Operating I...
Vesting is the schedule on which a person earns the right to keep granted equity. Unearned shares or options are forfeited and returned to the company if the recipient leaves before the schedule is complete. It applies to founders, employees, advisors, and (rarely) board members, and exists to make sure equity rewards people who stay and contribute over multiple years rather than people who took a grant and left.
The standard startup vesting schedule is four years with a one-year cliff: nothing vests for the first 12 months, then 25% vests on the cliff date, and the remaining 75% vests in equal monthly increments over the next 36 months (1/48th of total per month). The cliff is binary: leave on day 364 and you walk away with zero; l...
Corporate bylaws are the internal operating rules of a corporation. They govern how the company makes decisions, holds meetings, elects directors and officers, conducts shareholder votes, and handles routine corporate actions. The document is adopted at incorporation (typically at the initial organizational meeting of the board), and amendable by board or shareholder action depending on the bylaws themselves. Unlike articles of incorporation, which are filed publicly with the state, bylaws are an internal document kept in the corporate records, addressing offices, shareholder and board meetings, officer roles, stock issuance, indemnification, and amendment procedures.
The major sections of a typical set of corporate bylaws: offices a...
A patent is a government-granted intellectual property right giving the inventor exclusive rights to make, use, sell, and license an invention for a limited period. The term is typically 20 years from filing for utility patents, in exchange for publicly disclosing how the invention works in sufficient detail that someone skilled in the field could reproduce it. Patents are issued by the US Patent and Trademark Office (USPTO) at the federal level and have no state-level equivalent.
The three patent types: