Datadog Offered No Premium. Upwind Said No and Raised $400M.

Imagine a public company calls you with an offer to buy your startup. The price? Exactly what your last investors said you were worth. Not a dollar more.

That's the spot Upwind reportedly found itself in. According to TechCrunch, Datadog tried to acquire the cloud security startup, and one source said the offer carried no premium over the $3.8 billion valuation venture investors had already set. Upwind said no. It then closed a $400 million Series C.

Most first-time founders will never get a call like that. But the thinking behind the "no" is worth studying, because the same questions apply to a $200,000 offer for a small SaaS tool.

Upwind raised a $400 million Series C at a $3.8 billion valuation, led by Bessemer Venture Partners, after declining a Datadog acquisition bid. Existing investors Greylock Partners and Craft Ventures also took part.

The round landed nine months after Upwind raised $250 million at a $1.5 billion valuation. So the company's price tag rose by roughly two and a half times in under a year. TechCrunch also reported that the financing nearly fell apart during the bid, which tells you how disruptive an acquirer's interest can be.

Upwind is based in San Francisco and sells what it calls runtime security. In plain terms, it watches live cloud services and tries to catch and fix attacks as they happen, rather than just scanning code before it ships.

Because an offer is only as good as what it replaces. Upwind's other option was a round of fresh money from a lead investor who valued the company the same as Datadog did, with the freedom to keep building.

Here's the thing. A buyer who offers the same number as your last round isn't paying you for the future. They're asking you to hand over the future for free. If your growth is steep, every quarter you wait makes the same offer look smaller.

Upwind's growth was steep. TechCrunch reported it adds $20 million to $30 million in annual recurring revenue every quarter and is projected to finish the year near $90 million. That's a company whose next valuation probably isn't flat.

The $3.8 billion price is more than 40 times Upwind's projected year-end ARR, according to TechCrunch. For comparison, the same article puts Cyera, another fast-growing security startup, at about 80 times.

A multiple like that sounds absurd next to the 5x to 10x you'd see for a slower software business. It isn't random, though. Investors pay for growth rate and for the size of the market they think the company can own. A startup adding tens of millions in ARR every quarter gets priced on where it's headed, not where it sits today.

Your multiple will almost certainly be lower, and that's fine. What matters is knowing which story your numbers tell. Growing 15% a year and growing 300% a year are different businesses, even at the same revenue.

Saying no feels brave. It also feels terrifying, and plenty of founders have regretted it. So run a checklist first.

• Does the offer include a premium? If it matches your last valuation, ask what you're really getting.
• How much of the price is cash versus stock? Stock in a buyer's shares carries its own risk.
• What's your cash runway if you decline? Upwind had a committed lead investor. Do you?
• Will your team stay and be treated well? Some acquisitions quietly end products.
• What's the cost of waiting twelve months? If your growth is flat, waiting may shrink your options.
• Would you be happy if this was the best offer you ever got? Be honest with yourself on this one.

Notice that only a couple of those are about money. The rest are about control and what you want your next five years to look like.

It does, and TechCrunch points it out. Upwind's founder, Amiram Shachar, previously sold the cloud spend startup Spot.io to NetApp for $450 million. He's been on the other side of this table before.

That experience probably shaped how comfortable he was weighing a bid against an independent path. Repeat founders know what a real premium looks like and what it costs to give up control.

If you're a first-timer, you don't have that history. You can borrow it, though. Talk to two or three founders who've sold companies, and ask what they wish they'd asked the buyer. Their answers will be more useful than any blog post, including this one.

Start with a simple three-column comparison: take the offer, raise money, or keep bootstrapping. For each, write down the likely outcome in twelve and thirty-six months, plus what you'd have to believe for it to work.

You can build this in a spreadsheet, a Notion table, or a planning tool like Foundra that walks first-time founders through scenario modeling. The tool matters less than writing the assumptions down where you can see them.

Be specific. If you pick the "keep going" column, name the revenue you need by next summer. If that number needs 4x growth and you've been growing 20%, the plan is a hope, not a plan.

Then stress it. What happens if the next round takes nine months instead of three? What happens if your biggest customer leaves? Offers tend to expire faster than founders expect, so do this work before the call, not during it.

Absolutely. TechCrunch notes that few cybersecurity companies have gone public recently, which means an eventual acquisition may still be the most likely ending for Upwind too. Turning down one bid doesn't mean refusing all of them.

You can see the other side in the same news cycle. TechCrunch also reported that Salesforce was said to be buying defense tech startup Rune for $375 million. For a founder tired of fundraising, or in a market where a giant can offer distribution you can't build alone, a fair sale can be a great outcome.

The goal isn't to refuse buyers. It's to sell at a moment you choose, for a price that reflects your trajectory.

TechCrunch reported that the financing nearly fell apart over the bid. That detail is easy to skip, and it shouldn't be.

An offer from a strategic buyer changes the mood in every investor conversation. Some will rush to match it. Some will back away because they assume you'll sell. Others will quietly ask whether you're using the bid to squeeze a better price out of them.

If you ever get serious interest, tell your lead investor early and keep one clear story: here's what we're building, here's what we need, here's why now. Mixed messages kill rounds faster than low valuations do.

Also keep your board in the loop. Most boards have a say in a sale, and a surprise is the quickest way to lose their trust.

You aren't raising $400 million. But the habits scale down nicely.

Know your growth rate to the decimal. Upwind's team can tell you how much ARR they add each quarter, and you should be able to say the same about your monthly revenue.

Decide in advance what number would make you sell. Write it down. When a real offer shows up, emotions run hot, and a pre-written number keeps you honest.

And never let one buyer be your only audience. Even a handful of conversations with other possible acquirers or investors gives you something to compare against. Competition is the only thing that reliably creates a premium.

• An acquisition offer at your last valuation is a request for free upside, not a premium.
• Upwind reportedly turned down Datadog, then raised $400 million at $3.8 billion, led by Bessemer.
• Growth rate drives multiples. Upwind adds $20 million to $30 million in ARR each quarter.
• Compare three paths on paper: sell, raise, or bootstrap, with specific numbers for each.
• Talk to founders who've sold before you reply to a buyer.
• Declining one bid doesn't rule out selling later at a better time.

Did Datadog confirm the offer? TechCrunch reported the bid based on a source and said it had contacted both companies for comment. The article doesn't disclose a specific offer amount.

How much did Upwind raise? A $400 million Series C at a $3.8 billion valuation, led by Bessemer Venture Partners with Greylock Partners and Craft Ventures participating.

What does Upwind do? It builds cloud security software focused on detecting and fixing attacks in live services, which it calls runtime security.

Should a small startup reject an offer at its last valuation? Not automatically. Compare it against your runway, your growth rate and your appetite for risk. If growth is slow and money is tight, a fair sale can be the smarter move.

What is ARR? Annual recurring revenue, the yearly value of your active subscriptions. Investors use it to price software companies.

How do I find out what my company is worth? Look at recent deals in your category, your growth rate and your margins, and talk to investors or advisors who've priced similar businesses. Treat any single number as a range.

1. Upwind raises $400M after walking away from Datadog acquisition offer, TechCrunch, October 28, 2026
2. Upwind Lands $400M Series C at $3.8B After Rejecting Datadog's $3.8B No-Premium Buyout, AI Weekly
3. Upwind Raises $400M Series C at $3.8B Valuation as Revenue Quadruples in 2026, HackerNoon
4. Upwind Raises $400M Series C At $3.8B Valuation As Revenue Quadruples, Value Add VC
5. Salesforce's M&A spree continues with a reported $375M deal for defense tech startup Rune, TechCrunch, October 30, 2026