Startups · Funding
Raise in stages, prove at each one
Pre-seed to Series C: what each round is for, what it looks like in 2026 and the rules that apply.
Startup funding stages are the steps a young company climbs as it raises outside money: pre-seed, seed, Series A, B, C and beyond, each sized to prove one more thing about the business.
Founders hear the vocabulary everywhere, in pitch events, podcasts and tech news, yet few explain what each round is for or what investors expect in return. The short version: every round sells part of the company to fund the next set of milestones. If the milestones are hit, the company is worth more and the next round costs the founders a smaller share. If they are missed, the next round is harder, smaller or does not happen.
Not every company should take this path. The U.S. Small Business Administration (SBA) notes that with self-funding you keep complete control but carry all the risk, while venture capital is offered in exchange for an ownership share and an active role in the company. This guide explains the stages, shows what U.S. rounds look like in 2026, and covers the securities rules and the alternatives.
Those totals, from the Q3 2026 PitchBook-NVCA Venture Monitor, already exceed the previous full-year record, 2021’s $357.9 billion, by roughly 44%. But they are lopsided: in the third quarter, deals of $100 million or more were about 5% of all deals yet accounted for 75% of the money. A typical startup raises far less.
The startup funding stages at a glance
What each stage is for
| Stage | Typical sources | What the money must prove |
|---|---|---|
| Bootstrapping | Founders’ savings, early revenue | That someone will pay for the product |
| Pre-seed | Founders, friends and family, angels, accelerators | That the team can build a first version and find early users |
| Seed | Angel investors, seed funds, accelerators | Product-market fit: customers who keep using and paying |
| Series A | Venture capital firms | A repeatable way to acquire customers and grow revenue |
| Series B | Venture capital firms, often larger funds | That the business can scale across markets or teams |
| Series C and later | Growth funds, corporate and crossover investors | Market leadership, new products, acquisitions or a path to an IPO |
Pre-seed: turning an idea into a product
Pre-seed money usually comes from the founders themselves, family and friends, individual angel investors and accelerator programs. The goal is modest: a prototype, a first version or early customer interviews that show a real problem. Many founders raise this stage with simple agreements such as a SAFE (simple agreement for future equity) or a convertible note, which turn into shares at a later priced round instead of setting a value today.
Before you take anyone’s money, form the company properly and get its tax ID. Venture investors usually invest in corporations; our California business structure guide and EIN guide cover the basics.
Seed: finding product-market fit
A seed round funds the search for product-market fit, the point where customers adopt the product with little pushing. Investors look for a strong team, early traction such as users, revenue or pilots, and a large market. The PitchBook-NVCA data shows the median U.S. seed deal in 2026 was $3.0 million, below 2025’s $3.4 million, the only series where the median deal size did not rise.
Series A, B and C: building and scaling
A Series A is usually the first round led by a venture capital firm, with a set price per share and typically a board seat for the lead investor. The SBA puts it plainly: almost all venture capitalists will, at a minimum, want a seat on the board of directors. Later rounds get bigger as the company proves it can grow.
Median U.S. venture deal size by series, 2026
Source: PitchBook-NVCA Venture Monitor, Q3 2026, data as of Sept. 30, 2026. Values in millions of U.S. dollars.
Valuations climb even faster. The median pre-money valuation, what the company is worth before the new money comes in, was $60.3 million for Series A in 2026, $187.0 million for Series B, $500.0 million for Series C and $1.72 billion for Series D and later, which PitchBook-NVCA notes is more than double the 2025 level for that last group.
How dilution works
Every priced round issues new shares, so each existing owner holds a smaller percentage. The math is simple and worth knowing before your first term sheet.
Investor ownership after a round (illustrative)
Illustrative example with round numbers. Founders who owned 100% before the round own 80% after it.
Repeat that across four or five rounds, plus an option pool for employees, and founders of a successful company often own a minority stake by the time it goes public. That can still be a great outcome; a smaller share of a much more valuable company is worth more. The mistake is raising more than the next milestone needs, or at terms you do not understand.
The rules: you cannot raise from just anyone
Selling shares, SAFEs or notes is selling securities, and federal and state securities laws apply. Most startups rely on an exemption from registration. Three come up most often:
Common ways startups raise money legally
| Exemption | How much | Key rules |
|---|---|---|
| Rule 506(b) of Regulation D | Unlimited | No general solicitation or advertising; no more than 35 non-accredited investors in any 90-day period; file Form D within 15 days after the first sale |
| Regulation Crowdfunding | Up to $5 million in 12 months | Offered online only through an SEC-registered broker-dealer or funding portal; non-accredited investors face investment limits |
| Rewards crowdfunding | Varies by platform | Backers get a product or perk, not ownership, per the SBA |
Who counts as an accredited investor
Under the SEC’s definition, an individual qualifies with income over $200,000 (or $300,000 with a spouse or partner) in each of the past two years and the same expected this year; or a net worth over $1 million, not counting a primary residence; or by holding a Series 7, 65 or 82 license in good standing. Founders should confirm investor status before accepting money and work with a securities lawyer on any raise.
Alternatives to venture capital
Venture capital fits companies that can grow very large very fast. Most good businesses are not built that way, and the SBA lists several other routes:
- Bootstrapping: grow from revenue and keep full ownership and control.
- Loans: borrow without giving up ownership; see our small business loans guide and SBA loans guide.
- SBICs: Small Business Investment Companies are privately owned investment funds licensed and regulated by the SBA that make equity and debt investments in qualifying small businesses.
- SBIR and STTR: federal research programs that fund qualifying small businesses developing new technology.
- Corporate programs: some tech companies run free startup programs; our Nvidia guide covers its Inception program.
The free help section below lists local mentors and advisers, including SCORE and the Small Business Development Centers, who can review a pitch deck, a financial model or a term sheet before you sign.
Common mistakes
- Raising before you need to. Earlier money is usually the most expensive money in ownership.
- Ignoring securities rules. Advertising a 506(b) round or taking unverified investors can cause problems.
- Chasing a valuation instead of a milestone. A high price you cannot grow into makes the next round harder.
- Skipping the paperwork. Un-signed agreements and messy cap tables slow down later rounds.
- Assuming venture capital is the only path. Loans, revenue and grants keep ownership with you.
Key terms
- Pre-money valuation: the agreed value of the company before new investment.
- Post-money valuation: pre-money value plus the new money raised.
- Dilution: the drop in each owner’s percentage when new shares are issued.
- SAFE: a simple agreement for future equity that converts to shares in a later priced round.
- Accredited investor: an investor who meets the SEC’s income, net worth or license tests.
The bottom line: startup funding stages are a ladder of milestones. Raise only what the next milestone requires, understand the dilution and the securities rules before you sign, and remember that most businesses never need venture capital at all. In 2026, record totals hide a simpler truth for founders: a median seed round is about $3 million, and investors still fund teams that can prove progress.
Free help in the Sacramento region
You do not have to work through these decisions alone. SCORE Sacramento pairs owners with volunteer mentors, many of them retired executives, bankers and accountants, at no cost. The Sacramento Valley Small Business Development Center offers free one-on-one advising on financing, budgeting and financial statements. The SBA’s Sacramento District Office can explain loan programs and connect you with lenders, and community lenders such as California Capital and Opening Doors serve owners who need smaller loans or extra support. Browse our Business Resources and the free business help guide for more.
Key takeaways
- Each round funds a milestone: prototype, product-market fit, repeatable growth, then scale.
- Median 2026 U.S. rounds: seed $3.0 million, Series A $17.4 million, Series B $39.5 million.
- U.S. venture deal value hit a record $515.8 billion through Sept. 30, 2026; 82.7% went to AI.
- Raising money is selling securities: use an SEC exemption such as Rule 506(b) or Regulation Crowdfunding.
- Bootstrapping, loans, SBICs and SBIR grants are alternatives that keep more ownership.
Frequently asked questions
What are the stages of startup funding?
The usual stages are bootstrapping, pre-seed, seed, Series A, Series B, Series C and later rounds, and sometimes an IPO. Each round funds the next set of milestones.
How much is a typical seed round in 2026?
The PitchBook-NVCA Venture Monitor shows a median U.S. seed deal of 3.0 million dollars in 2026, through September 30, below the 2025 median of 3.4 million dollars.
What is the difference between seed and Series A?
Seed money funds the search for product-market fit, often from angels and seed funds. Series A is usually the first round led by a venture capital firm, at a set share price, to scale a proven model.
Do I need accredited investors to raise money?
Not always. Rule 506(b) allows up to 35 non-accredited investors in any 90-day period, and Regulation Crowdfunding lets anyone invest within limits through a registered platform. Ask a securities lawyer.
How much can a startup raise with crowdfunding?
Under the SEC’s Regulation Crowdfunding, a company can raise up to 5 million dollars in a 12-month period through an SEC-registered broker-dealer or funding portal.
Sources
- PitchBook-NVCA Venture Monitor, Q3 2026 (data as of Sept. 30, 2026)
- SEC: Regulation Crowdfunding
- SEC: Private placements, Rule 506(b)
- SEC: Accredited investors
- U.S. Small Business Administration: Fund your business
Keep reading on Inksight
- Business Credit vs. Personal Credit: What Every Small Business Owner Should Know
- How to Choose a Business Structure in California: Sole Proprietorship, LLC, S Corp or C Corp
- Business Banking 101: How to Choose and Open a Business Bank Account
- Small Business Funding Options: Loans, Grants and Investors
- Business Resources: all guides →
