Speed to Lead in B2B, and Where the Famous Numbers Come From

Answer an inbound B2B lead within an hour, and within five minutes when someone is at a desk. Every study in this roundup that measured results points that way. In the largest audit below, run in 2011, 63% of US companies missed that hour.

Speed to lead is the time from a buyer submitting a form, such as a demo request or a pricing question, to your company's first personal response.

The best-known multipliers come from two studies. In a 2011 Harvard Business Review article, firms that tried to reach a lead within an hour were nearly 7 times as likely to qualify it as firms that tried an hour later.

The same article found them more than 60 times as likely to qualify it as firms that waited 24 hours or longer.

The older one, the InsideSales.com and MIT Lead Response Management Study from 2007, found that calling within 5 minutes instead of 30 raised the odds of reaching the lead 100 times and the odds of qualifying it 21 times.

Now the 2026 picture. When Workato filled out demo requests at 114 B2B companies, the average personalized email reply took 11 hours 54 minutes. One company out of 114 sent a personalized email inside 5 minutes.

The classic figures date from 2007 and 2011. Below, every number sits next to its year, who produced it and what it counted. Figures were checked in September 2026.

Where each speed to lead number comes from

Six findings, oldest first. The last column is how much weight each one deserves for a B2B company today.

The Leads360 figures come from its December 2012 press release, now only in a web archive.

One pattern in that table deserves a flag. The 2007 and 2011 studies both involve InsideSales.com: it co-ran the 2007 study, and its CEO co-wrote the 2011 article. Both may well be right. Both also share a link to a company selling lead response software.

The Workato row is the only recent study in the table with a method you could repeat yourself. Workato sells automation software, so treat the part about routing tools with the same care you would give any vendor study.

What fast looks like, window by window

So "fast" has two thresholds with evidence behind them: 5 minutes, from phone data on reaching and qualifying leads, and one hour, from the 2011 data on qualifying. After a full day, the chance of qualifying the lead is a small fraction of what it was in the first hour.

Is the 42-hour average response time real?

Yes, and it dates from 2011.

The number comes from the same 2011 HBR article. Researchers sent a web test lead to 2,241 US companies and waited. 37% responded within an hour, 16% within 1 to 24 hours, and 24% took more than 24 hours. 23% never responded at all.

The 42 hours is the average among the companies that replied within 30 days.

Two details change how you should read it. First, it is an average, so a small group of very slow replies can pull it up. Second, it leaves out the 23% who never answered, which means the full 2011 picture was worse than 42 hours suggests.

The same 42 hours shows up again in 2026, in the consultancy benchmark in the table, which calls it an average in one place and a median in another. That page calls its own numbers "illustrative and directional". Same figure, fifteen years later, on a page that blends client work with published research.

Workato's 11 hours 54 minutes comes from a different sample and method, so the two numbers cannot be lined up as a trend. What the 2026 figure does show: in that sample, a buyer who asked for a demo waited about half a day for a personal email, on average.

What 114 B2B companies did with a demo request in 2026

Workato's method was simple enough to copy: it filled out demo requests at 114 B2B companies of varied size, industry and region, then recorded how long each one took to send a first personalized email and make a first call. The results, published in March 2026:

• Average time to a personalized email: 11 hours 54 minutes
• Average time to the first phone call: 14 hours 29 minutes
• 31% of companies phoned at all, and none of them within 5 minutes
• Nearly 1 in 5 never replied by email
• Just 1 company emailed a personalized reply inside 5 minutes
• With a lead routing tool, the average response was 3 hours 32 minutes; without one, nearly 13 hours

Read in reverse, that list is good news for a small company. The bar in this sample was low. A personalized email inside 5 minutes would have beaten 113 of the 114 companies Workato tested.

What the routing gap looks like on a Tuesday

A demo request comes in on Tuesday at 15:00. At the no-tool average of nearly 13 hours, the first reply is due around 04:00 on Wednesday. In practice that means whenever somebody opens the inbox on Wednesday morning.

At the routed average of 3 hours 32 minutes, the reply goes out around 18:30 on Tuesday. Routing wins back most of a working day.

Even so, the routed average misses the one-hour mark from the HBR data by about two and a half hours. A tool shortens the path to a person. Somebody still has to be sitting at the end of that path.

Why the famous multipliers need care in B2B

The direction is consistent. Every study in the table that measured outcomes points the same way: faster first contact, better results. The exact multipliers are a different matter, because of what each study counted.

The 2007 study measured phone calls. A "contact" meant a call that connected with a live person, across six companies. By its own description, it did not look at closed deals. InsideSales.com also wrote that its customer base leaned toward mortgage and insurance companies.

The 2011 7x and 60x figures come from a dataset of 42 companies, 29 of them consumer businesses. "Qualify" meant reaching a key decision maker and having a meaningful conversation.

The 391% from Leads360 sits in a press release headline about "sales processes" in general. The release does not tie it to one response time.

For a founder selling a service with several approvers and a long sales cycle, the sensible reading is narrower than 21x: faster replies raise the odds of getting the first conversation. The 2007 data found the odds of reaching a lead by phone fell more than 10 times within the first hour.

Why inbound leads wait

The HBR authors named three causes. Leads were pulled from the CRM once a day instead of continuously. Sales teams were busy generating their own leads instead of reacting to buyers who raised a hand. And leads were handed out by rules based on geography and "fairness".

Workato's routing gap points the same way in 2026: companies without a routing tool took far longer to reply than companies with one.

On a 5 to 15 person team, look for more ordinary causes:

• The form goes to a shared inbox that nobody owns.
• The request arrives at 18:00 or on a Saturday and waits for the next working day.
• An automatic "thanks, we got it" goes out, and everyone assumes the lead has been answered.
• One call attempt lands in voicemail, and nobody tries again.

None of these needs software to fix first. Every single one needs a name next to it, and a name is free.

A response plan a small B2B team can run

For a small team, the starting point is a rule for each situation and one person responsible for it.

Morning is a good slot for the overnight backlog. The 2007 data, from phone calls, found 8 to 9 in the morning among the best hours to qualify a lead.

The setup behind that table, step by step:

1. Put one name on lead duty for each day, plus a backup. "Sales" is not a name.
2. Send form alerts to that person's phone, not only to a shared inbox.
3. Add a booking link to the thank-you page, so a keen buyer can pick a time before anyone replies.
4. Write the holding message once. It says who they will hear from and by when, and it is signed by a person.
5. When you reply, answer what they asked in the form first. Then suggest a time.
6. If the first call goes to voicemail, try again later the same day and send an email so they know who called.
7. Log the time of the first human reply against every lead, so you can measure it.

If you do buy software for this, three categories matter: assignment and booking (who gets the lead, plus the booking link), real-time alerts, and CRM time stamps that record the first human reply.

Automation belongs in the parts the buyer never sees, like alerts, routing and logging. The reply is the part they do see. I draw the same line for outbound in where AI helps and where it gets in the way.

The reply needs a named person

Smirnov Consulting Group is a Prague-based B2B outbound lead generation agency that runs cold email and LinkedIn campaigns for founder-led B2B companies and books qualified sales calls. The replies my team handles come from outbound campaigns, not website forms, and each one goes into a CRM set up before launch.

On bigger builds, one person on my team has a single job: the reply inbox. I explained why in my post on booked calls that never close, and the reason fits in one line: "Replies are where the automation should stop." That person reads and answers every reply, and moves the interested ones toward a booked call.

A demo request raises the same staffing question. A routing tool that pings a phone nobody is watching produces a fast notification and a slow reply, and the buyer only ever sees the reply. The studies above measure the reply, not the notification.

If you came here for follow-up timing on cold outreach, that is a separate question with its own answer. My team's version is in how we build a follow-up sequence.

How to measure your own speed to lead

You can run a smaller version of the Workato test on yourself this week.

1. From a personal email address, fill out your own demo or contact form three times in one week: a weekday morning, a weekday at about 17:30, and a Saturday.
2. Record the time to the first personal email and the first phone call for each one. An autoresponder does not count.
3. In your CRM, track the time from form submission to the first human reply for every inbound lead.
4. Report two numbers each month: the median time, and the share of leads answered within one hour. Use the median, because a few very slow leads can pull an average up.
5. Track a third number as well: leads that never got a personal reply. In the 2011 audit, that was 23% of companies.
6. After a few months, split booked meetings by response band, answered within the hour versus later. That shows what speed is worth in your own pipeline.

The HBR audit gives you a rough outside yardstick: in 2011, 37% of the US companies tested answered their one test lead within an hour. If any of your three test leads waited longer than an hour, start with the response plan above.