Introduction
A startup funding glossary can be problematic even for experienced founders. Are you still wondering whats the difference between Series A, B, or C is? Are you not sure when the Initial Public Offering (IPO) will become a viable option? This beginner-friendly article summarizes each of the funding stages and introduces clarity on topics like equity or down rounds.
Let’s dive in!
In this article:
- Before You Read | Useful Definitions Go to text
- Startup Funding Rounds | What? When? Why? Go to text
- 1. Pre-seed Funding (Idea Stage) Go to text
- 2. Seed Funding (Early Traction Stage) Go to text
- 3. Series A Funding (Growth & Scaling) Go to text
- 4. Series B Funding (Expansion & Market Domination) Go to text
- 5. Series C Funding & Beyond (Hypergrowth & Pre-IPO) Go to text
- 6. IPO (Initial Public Offering) Go to text
- Summary | Funding is Just the Beginning Go to text
Before You Read | Useful Definitions
- Startup – A new business focused on innovation and rapid growth, often in technology or emerging industries. A person who starts such a company and leads its vision is called a founder,
- MVP – Minimum Viable Product. It is the simplest product version, with just enough features to attract early customers and validate the idea.
- Equity – Percentage-based ownership in a company, often represented by shares or stock.
- Angel Investor – An individual who provides early-stage funding, often before VC get involved. Such a figure provides money in exchange for potential financial returns (e.g., equity or debt),
- VC (Venture Capitalist) – A professional investor or firm that funds high-growth startups in exchange for equity.
Startup Funding Rounds | What? When? Why?
Not every business is ready to be flooded with investors’ money.
Some startups are created by unexperienced beginners, and some are built with the help of an old hand. One way or the other, different levels of risk create a need for division.
That is exactly why funding rounds, also known as series, exist.
Different stages of funding help investors to sort & sift out startups that don’t comply with their business goals or values.
Each startup funding stage serves a unique purpose, from launching an idea to scaling globally.
Here are 7 basic startup funding stages – each dedicated to a different momentum of business growth:
Stage | Funding Size | Dominant investors type | Purpose |
Pre-Seed | $10K – $500K | Friends, Angels, Incubators | Build MVP, Validate Idea |
Seed | $500K – $5M | Angels, Seed VCs, Accelerators | Market Testing, First Customers |
Series A | $5M – $15M | VCs | Scale Product & Revenue |
Series B | $15M – $50M | Bigger VCs, PE Firms | Expansion, Growth |
Series C+ | $50M – $500M+ | Hedge Funds, Investment Banks | Market Domination, Acquisitions |
IPO | $500M+ | Public Market | Public Listing & Liquidity |
Down Round | Varies | Existing & New Investors | Raising Funds at Lower Valuation |
Here is a short overview of each stages:
1. Pre-seed Funding (Idea Stage)
Pre-seed funding – it’s that exhilarating yet nerve-wracking phase where your startup is nothing more than a concept, a bold vision waiting to take shape.
At this stage, entrepreneurs aren’t simply pitching numbers or revenue projections – they’re selling belief.
You need investors who trust you because, let’s be honest, there’s no real traction yet, no product-market fit, and certainly no steady cash flow. But the reality is that securing pre-seed funding is tough.
Investors know the risks – most startups at this stage don’t make it.
That’s why traditional VCs usually stay away, leaving you to raise between $10K and $500K from angel investors, incubators, or (more often than not) friends and family.
The trade-off?
Equity.
Founders typically give away 5% to 15% at this stage, often at a painfully low valuation. And while that early capital is a lifeline, it also means high dilution before you’ve even really started. So, is pre-seed funding worth it? It depends.
If you need capital to validate your idea, build an MVP, or cover early operational costs, it can be a game-changer.
But be strategic – give away too much equity now, and future rounds could become a nightmare.
The key?
Find investors who align with your vision, minimize unnecessary dilution, and build just enough traction to make your next raise easier. In the world of startups, surviving the pre-seed stage is just the beginning.
Interested in details? Click here to read our article on Pre-Seed Funding stage >
📉 If fails: | 🚀 If successful: |
Pivot the idea, bootstrap longer, or shut down and restart with new insights. | The startup gains traction, builds an early user base, and raises a Seed Round ($500K – $5M). |
2. Seed Funding (Early Traction Stage)
In need of capital to push your startup to the next level?
Enter Seed Funding – the critical phase where early-stage startups secure anywhere from $500K to $5M+ to fine-tune operations, grow teams, and prove they can scale.
At this step, you ought to have:
- vision that screams scalability,
- promising business model,
- traction.
At this stage, you’re no longer just an idea; you’ve validated demand, but you’re not fully scaled yet.
That’s why investors (Angel Investors, Seed VCs, and Accelerators) are willing to bet on you. They’re looking for strong momentum, a clear growth path, and, of course, a solid business model.
In return, they’ll typically take 10% to 25% equity, depending on your valuation.
Risk?
Still high, but lower than the pre-seed chaos.
The biggest danger isn’t just proving scalability – it’s taking money from the wrong investor. A bad-fit investor can slow down growth, misalign priorities, or even limit future funding rounds.
Choose wisely.
This is where startups transition from “we have something” to “we’re ready to take over the market.”
If you’re at this stage, securing the right seed funding could be the game-changer that sets you apart from the competition.
📉 If fails: | 🚀 If successful: |
The startup may pivot, shut down, or seek alternative funding (grants, loans, crowdfunding). | The startup uses seed funding to grow, generate revenue, and attract Series A funding ($5M – $15M+). |
Interested in details? Click here to read our article on Seed Funding stage >
3. Series A Funding (Growth & Scaling)
So, you've built a startup with traction, early revenue, and a product that people actually want.
Now, you're eyeing Series A funding – the crucial stage that takes you from a promising startup to a scalable, high-growth company.
But what does Series A really involve? Let’s break it down.
First, the numbers:
Series A rounds typically range from $5M to $15M+, depending on industry competitiveness and market conditions.
Investors at this stage are primarily Venture Capital (VC) firms and corporate investors looking for startups with strong product-market fit and proven revenue potential.
Unlike seed funding, where the focus is on building an MVP and validating demand, Series A is all about scaling – growing the product, expanding the user base, and optimizing the business model.
What do VCs expect?
They want to see real traction, sustainable growth metrics, and a clear path to expansion – whether that’s through customer acquisition, market penetration, or geographic expansion.
In return for their investment, they typically take 15%–30% equity, depending on your valuation and negotiation power.
The risk level remains medium-high, meaning you need to prove that your startup isn’t just a good idea but a business that can scale profitably.
At this stage, the pressure is on: securing Series A isn’t just about raising capital – it’s about demonstrating that your startup has the team, strategy, and market positioning to become a dominant player.
The key?
Data-driven growth, a compelling vision, and a rock-solid execution plan. Nail these, and you’ll be on your way to Series B and beyond.
📌 Example: Airbnb raised a $7.2M Series A from Sequoia Capital after proving demand in the short-term rental market.
📉 If fails: | 🚀 If successful: |
The startup may struggle to raise Series B, pivot, or shut down if unable to scale. | The startup uses Series A funding to grow aggressively and attract Series B funding ($15M – $50M+). |
Interested in details? Click here to read our article on Series A Funding Round >
4. Series B Funding (Expansion & Market Domination)
Series B funding isn’t just another round – it’s the moment where startups transition from early promise to full-scale dominance.
If you're a CEO or founder navigating this stage, you’re in the big leagues now. Investors are writing bigger checks, typically between $15M and $50M+, but they’re also expecting proofs:
- proof of revenue,
- proof of scalability,
- proof that your startup is ready to dominate its market.
Unlike Series A, where investors bet on potential, Series B is about acceleration.
At this stage, you’re attracting late-stage VC firms, private equity players, and larger institutional investors – the kind of backers who don’t just want to see growth; they want to see market capture.
They’re looking for a high-growth company that has already broken into its market and now needs capital to scale aggressively.
The trade-off?
You’re likely giving away 15% to 30% equity, depending on valuation, but in return, you’re getting the fuel to expand operations, hire top talent, enter new markets, and outpace competitors.
If you played your cards correctly in previous funding rounds, you should still have a lot of equity to spare.
Risk-wise, Series B sits in a sweet spot.
It’s less risky than Series A because you’ve already demonstrated traction, but it’s still dependent on growth.
The key to securing this round? A solid revenue model, a clear path to profitability, and a compelling vision for exponential scaling.
Series B isn’t just about raising money – it’s about seizing market leadership before anyone else can.
📌 Example: A fintech startup might use Series B funding to expand its services to new countries, hire a global sales team, and upgrade its security infrastructure.
📉 If fails: | 🚀 If successful: |
The startup may struggle to raise Series C, pivot, or seek alternative financing (debt, partnerships, M&A). | The startup raises Series C ($50M – $500M+) to prepare for IPO or acquisitions. |
Interested in details? Click here to read our article on Series B Funding Round >
5. Series C Funding & Beyond (Hypergrowth & Pre-IPO)
Series C funding and beyond – this is where the game changes.
At this stage, your company isn’t just another promising startup; it’s a market leader, a high-growth machine on the fast track to an IPO or major acquisition. With funding rounds ranging from $50M to well over $500M (sometimes even hitting the billions), you’re playing in a different league now.
Investors? You’re attracting hedge funds, private equity giants, sovereign wealth funds, and corporate investors who are looking for scale, stability, and strong returns.
The risk? Lower than early-stage startups, but the expectations?
Sky-high.
Equity stakes typically range from 10% to 25%, depending on valuation and investor appetite.
Main mission?
Maximize growth, dominate global markets, and fine-tune operations for a successful public debut or a lucrative acquisition deal.
This is not about survival – it’s about strategic expansion, capital efficiency, and making bold moves that cement your company’s legacy.
If you’re at this stage, you’re no longer chasing success – you’re defining the future of your industry.
📌 Example: WeWork raised $3B in Series C funding from SoftBank to expand co-working spaces globally.
📉 If fails: | 🚀 If successful: |
The startup may sell to a larger company (M&A), pivot, or face financial decline. | The startup moves to Series D, E, F, etc., then launches an IPO ($1B+ valuations typical). |
Interested in details? Click here to read our article on Series C Funding Round >
6. IPO (Initial Public Offering)
An Initial Public Offering (IPO) is the process of taking a private company public by offering its shares on a stock exchange (such as the NYSE or Nasdaq).
This allows the company to raise capital from public investors, providing liquidity for early investors and fueling further growth.
You’ve already conquered the early chaos, proven your model, and scaled aggressively. Now, it’s time to go big or go public.
At this stage, funding rounds range from $50M to $500M+, sometimes even hitting the billion-dollar mark. Investors?
Think late-stage VCs, private equity giants, hedge funds, and sovereign wealth funds – serious players looking for high-growth, low-risk opportunities. You’ll likely give up 10% to 25% equity, but the trade-off?
A war chest to fuel global expansion, ramp up acquisitions, and prep for IPO glory.
If you’re eyeing the public markets, you’re stepping into the final transformation. Funding sizes can easily exceed $1B, and the investor pool shifts to institutional and retail players.
Once those shares hit the stock exchange, it’s a whole new game – massive capital inflows, public scrutiny, and the ability to scale like never before.
Bottom line?
Series C and beyond isn’t just about raising money – it’s about cementing your company’s legacy.
Whether you’re gearing up for an IPO or a blockbuster acquisition, this is the stage where startups become industry titans.
📌 Example: WeWork raised $3B in Series C funding from SoftBank to expand co-working spaces globally.
Why Do Companies Go Public?
- Raise large amounts of capital – Fund expansion, R&D, acquisitions
- Increase brand credibility – A public listing boosts reputation and market visibility
- Provide liquidity to early investors – Founders, VCs, and employees can cash out
- Attract & retain talent – Offer stock options to employees as incentives
- Mergers & acquisitions – Easier to acquire other companies using stock
Types of IPOs:
- Traditional IPO – Uses investment banks to underwrite & market shares (e.g., Facebook, Uber).
- Direct Listing (DPO) – No underwriters, allows early investors to sell shares directly (e.g., Spotify, Coinbase).
- SPAC (Special Purpose Acquisition Company) – A "blank-check" company takes a startup public via merger (e.g., Virgin Galactic, DraftKings).
📌 Example: WeWork raised $3B in Series C funding from SoftBank to expand co-working spaces globally.
📉 If fails: | 🚀 If successful: |
The stock may drop, causing losses for investors (e.g., WeWork canceled its IPO due to financial concerns). | The company continues growing, acquiring rivals, and increasing stock value. |
Interested in details? Click here to read our article on IPO Funding Round >
Is series D good or bad?
It depends.
Increased competition poses another threat, as losing market share to rivals can weaken a startup’s position. Furthermore, regulatory or legal issues, such as government restrictions, lawsuits, or compliance problems, can create uncertainty and risk for investors.
Down rounds typically occur due to market downturns, poor company performance, or mismanagement, making it crucial for startups to carefully manage growth, spending, and regulatory compliance to avoid valuation setbacks.
Interested in details? Click here to read our article on Down Round Funding >
📌 Example: WeWork's valuation dropped from $47B to $8B in 2019 after investors lost confidence.
Summary | Funding is Just the Beginning
Raising capital – whether it's Series A, B, C, or beyond – isn’t just about the money.
It’s about the strategy, vision, and execution that follow. Every funding round is a steppingstone, not the finish line.
The real challenge?
Turning that capital into market dominance, scaling sustainably, and building a company that lasts.
By the time you hit late-stage funding, you’re playing in a different league. Investors expect results, competitors are watching, and the pressure to deliver is real. But if you’ve made it this far, chances are you already know:
Funding fuels growth, but execution defines success.
So whether you're securing your first million or gearing up for an IPO, remember – capital is a tool. The legacy is up to you.
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