How to Find Companies That Just Raised a Series B (In Real Time)

A Series B announcement is one of the strongest buying signals in B2B sales — the company just received $20–80M to grow fast, and your product is probably on their shopping list. The problem isn't finding Series B companies after the fact. It's finding them within the first 48–72 hours, before your competitors do, and before the funded company's calendar fills up with vendor calls.

Why do Series B companies buy so aggressively after raising?

Series B companies are under board-level pressure to deploy capital efficiently. The round exists specifically to fund growth — new hires, new infrastructure, new tools. That creates a short window, typically 30–90 days post-announcement, where budget decisions are being made rapidly and vendor conversations are actively welcomed.

This is structurally different from cold outreach to a company with no funding signal. You're not interrupting someone who hasn't thought about your category. You're calling someone who has just been handed money to solve exactly the problems your product addresses. The objection isn't budget — it's timing and fit.

According to McKinsey's research on B2B growth, companies that align their outreach to buying triggers — including funding events — see 5x higher conversion rates from first contact to qualified opportunity compared to untriggered outreach. Funding rounds are among the highest-signal triggers available.

The implication for prospecting is simple: a well-timed email to a Series B company is worth 10–20 generic cold emails to companies with no context.

What are the best sources for finding companies that just raised Series B?

The most reliable real-time sources are a combination of structured databases, social signals, and job posting data — each with different strengths.

Crunchbase and PitchBook

Crunchbase is the most widely used free option. Their daily funding alerts (available on Pro) surface Series B announcements within 24 hours of a press release or SEC filing. PitchBook is more comprehensive and more expensive — it's better suited for enterprise teams building segmented lists by industry, geography, or investor network.

Both platforms let you filter by round type (Series B), date range, geography, and industry vertical. Export to CSV and you have a working list. The limitation is that both reflect announced rounds — stealth rounds and delayed press releases won't appear immediately.

LinkedIn company announcements

LinkedIn surfaces funding news in two ways: companies post their own announcements (follow target companies), and LinkedIn's news feed algorithmically promotes funding posts. Setting up a saved search for "Series B" in LinkedIn News, or following key VC firms whose portfolios match your ICP, gives you a real-time signal that doesn't require a paid database subscription.

Tech job postings

Job postings are often the earliest signal that a funding round has closed — companies begin hiring before the press release goes out. A sudden spike in engineering, sales, or GTM roles at a company that was previously static is a reliable leading indicator. This is especially useful for identifying companies that raised quietly without a public announcement.

TechCrunch, The Information, and SEC filings

For US companies, Form D filings with the SEC are public within 15 days of a funding close. Tools like Edgaronline or direct SEC EDGAR searches let you catch rounds before they hit Crunchbase. TechCrunch and The Information are useful for named rounds in tech, though their coverage skews toward larger, more media-friendly companies.

How do you filter a Series B companies list to find the right prospects?

Funding round alone is not a useful ICP filter. The real work is narrowing a raw Series B list down to the companies that match your product's sweet spot — the ones where your outreach will convert, not just land.

The four filters that matter most, in order:

1. Company size at time of raise. Series B companies range from 30 to 300+ employees. If your product is built for 50–150 person companies, filter out the outliers immediately. Employee count on LinkedIn is updated frequently and is the fastest proxy.
2. Tech stack. If you sell a sales tool, you want companies already using a CRM — not ones that haven't built that infrastructure yet. Job postings and tools like BuiltWith surface the tech stack a company is running. This tells you both whether they're a fit and who to reference in your outreach.
3. Hiring signals in your category. A Series B company posting for a Head of Revenue Operations while already using your competitor's product is a warm lead. They have the problem, they're building the team, and they may be unhappy with the current solution.
4. Competitor usage. This is the most powerful filter of all. A funded company that is already paying a competitor has proven budget and category awareness — your job is to make the switching conversation easy, not to educate them on why they need your category at all.

This is where a tool like Stealery becomes directly useful: you search a competitor, apply filters for company size and funding stage, and get a list of companies that match all four criteria simultaneously — recently funded, right size, right tech stack, confirmed category spend. That list is worth an order of magnitude more than a raw Crunchbase export.

What do you say to a company that just raised Series B?

The most common mistake SDRs make with funded companies is leading with the funding itself. "Congrats on your Series B!" as an opener signals that you found them via a generic database alert — every other rep is sending the same line. It's the cold email equivalent of a handshake that's too firm.

The opener that works is one that demonstrates you understand what the funding means for their specific situation — the hiring plan, the infrastructure gap, the new pressure to scale a specific function.

"The funded companies that respond best to outreach are the ones where you show up knowing their next problem, not their last milestone. Anyone can read a press release. Fewer people understand what $40M in Series B capital actually forces a 90-person company to do operationally."

— VP of Sales, 130-person B2B SaaS company (Stealery customer)

A framework that converts:

• Reference the growth mandate, not the round. "You're likely staffing up your sales team fast right now" lands better than "Congrats on the raise."
• Name a specific problem that Series B scale creates. At this stage, companies are outgrowing their early tooling — their data stack, their CRM setup, their outbound motion. Name the specific version of that problem your product solves.
• Show you've done 90 seconds of research. Reference a job posting, a product launch, or a leadership hire from the last 30 days. This takes 90 seconds and separates you from 95% of the inbox.
• Make the ask small. A 15-minute call, not a demo. You're proposing a conversation, not a procurement process.

How quickly should you reach out after a Series B announcement?

The window is 72 hours. After that, the signal degrades quickly for two reasons: the company's inbox fills with vendor outreach, and internally, the team moves past the announcement into execution mode.

Salesloft's cadence benchmark research consistently shows that timing relative to a trigger event is the single largest variable in reply rate — more impactful than subject line, email length, or personalization depth. Reaching a prospect within 24 hours of a relevant trigger event correlates with reply rates 3–4x higher than outreach sent 7+ days later.

The practical implication: set up daily alerts on Crunchbase, Google Alerts for "[competitor] Series B," and LinkedIn company follows for your target accounts. Don't let funded companies age in a spreadsheet waiting for a weekly review. The rep who sends Tuesday's announcement on Wednesday beats the one who sends it on Friday.

Should you target Series B specifically, or other funding stages too?

Each funding stage has different buying behavior, and the right answer depends on your ACV and sales cycle.

Series A companies (typically $5–15M raised, 20–60 employees) are building their first real stack. They're buying, but deal cycles are longer and they often have one person making all vendor decisions. Good for lower-ACV products with a short time-to-value.

Series B companies ($20–80M raised, 50–200 employees) are the most commercially active stage for most B2B SaaS products. They have a VP of Sales or CRO, a defined budget cycle, and a genuine mandate to deploy capital into tooling. This is the sweet spot for mid-market SaaS deals ($15K–$150K ACV).

Series C and beyond companies are increasingly enterprise in their buying behavior — longer procurement cycles, legal review, procurement involvement. The signal is still valuable, but the sales motion looks more like enterprise sales than the faster-moving mid-market deal.

For most SDRs at 50–200 person SaaS companies, Series B is the optimal target: large enough to have real budget, small enough to move fast. The key is not treating all Series B companies the same — a $100M Series B into a 300-person company is a different prospect than a $20M Series B into a 60-person company, even though both have the same round label.