B2B pipeline for a SaaS company comes from a short list of accounts that ads, outbound and founder content all work at the same time, judged by opportunities created rather than leads. Buying groups are large, buyers research mostly on their own, and the big mailbox providers now filter or reject senders who skip the basics. So pick fewer accounts, reach more people inside each one, send less and better email, and review the numbers every week.
Bigger than your CRM shows. In Forrester’s State of Business Buying 2026, published in January 2026, the typical buying decision included 13 internal stakeholders and nine external influencers, rising for complex or strategic purchases. The survey behind it covered nearly 18,000 business buyers worldwide in 2025. When the offering had generative AI features, the buying group doubled, to 14 members against seven. More than 60% of buyers used some form of trial.
If your deals are smaller than many in that sample, expect fewer names, but map them anyway. For each open opportunity, record who will use the product, who owns the budget, who reviews security, who signs and which outsiders they’ll consult. A CRM with one contact per deal can’t show you who you’ve never reached.
Mostly alone, then they check with a person. In a Gartner survey of 645 B2B buyers run in August and September 2025, buyers used an average of seven information sources in a recent purchase, and 45% used generative AI, mainly to research vendors and products. Two thirds (67%) prefer a rep-free experience, yet 69% prefer to validate AI-generated insights with a sales rep. Forrester saw the same habit: when AI answers fall short, buyers seek validation from “peers, product experts, industry analysts, and others within their buying networks.”
So the shortlist forms around what buyers find without you: your site, reviews, comparison pages, AI answers and the people they ask. Our AI visibility guide for SaaS covers that side. Sellers then confirm and reduce risk with a trial plan, security answers and a reference customer.
Account-based marketing means choosing the companies first, then pointing every channel at them. Run it narrowly, because a small team’s ads, seller time and founder attention get thin fast, and because most accounts aren’t buying. In research with LinkedIn’s B2B Institute, written up in 2021, John Dawes of the Ehrenberg-Bass Institute estimated that only about 5% of B2B buyers are in market at any one time. The article doesn’t show how it was calculated, so treat it as a rule of thumb.
Start with your last 20 to 30 closed deals, won and lost. Note what the wins share: company size, the tool they replaced, the team that championed you and the event that started the search. Build the list from lookalikes of your wins, not your losses. With fewer than 10 wins, treat the list as a hypothesis to revisit at day 90.
| Tier | Accounts | Who works it | What they get |
|---|---|---|---|
| 1 | 15 to 30 | Founder and a seller | Hand-written outreach to 3 to 5 people, ads, custom demo |
| 2 | 100 to 300 | Sellers | Sequences per segment, ads, founder content |
| 3 | Rest of your ideal customer profile | Marketer | Ads and content until a signal moves them up |
These are starting sizes for a team with one or two sellers. Move accounts up on signals and down on silence, and review the tiers monthly.
Give each signal an owner and a response time. A trial signup from a tier 1 account should reach the founder the same day.
Mixed messages can put deals at risk. In Gartner’s survey of 632 B2B buyers in August and September 2024, 69% reported inconsistencies between a supplier’s website and what its sellers told them.
The sender rules from 2024 and 2025 target high-volume mail to consumer inboxes.
| Provider | Bulk threshold | Key requirements | In force |
|---|---|---|---|
| Gmail personal accounts | About 5,000 messages a day | SPF, DKIM, DMARC, From domain aligned, one-click unsubscribe, spam rate under 0.3% | February 2024, stricter from November 2025 |
| Yahoo Mail | No number given | SPF, DKIM, DMARC at p=none or stricter, one-click unsubscribe honored within 2 days, spam rate under 0.3% | February 2024 |
| Outlook.com | Over 5,000 emails a day | SPF, DKIM and DMARC | May 5, 2025 |
Some rules apply at any volume. Gmail requires every sender to use SPF or DKIM, valid forward and reverse DNS, TLS and a spam rate below 0.3%, and Google recommends staying below 0.1%, one complaint per 1,000 messages. Since November 2025, its FAQ says, Gmail has been stepping up enforcement, including temporary and permanent rejections. Microsoft’s postmaster site says failing mail goes to Junk with rejection to follow “shortly”, but an April 29, 2025 update to Microsoft’s announcement changed the action taken on non-compliant mail to rejection with error 550 5.7.515, so plan for it.
Most B2B outbound goes to work addresses, and Google says its sender requirements don’t apply to mail sent to Google Workspace accounts, while Microsoft’s cover its consumer Outlook.com service. So these rules don’t formally apply to most cold email sent to work inboxes. Treat them as the minimum anyway, because some prospects use personal addresses.
Google’s guidance is to start with low volume, increase it slowly, send at a consistent rate and avoid bursts. For a new outbound domain, I’d start each mailbox at a handful of emails a day, build over four to six weeks and hold at a few dozen new contacts a day. If your plan needs more mail than a few mailboxes can send at that pace, the list is too broad for ABM.
In the same 2024 Gartner survey, 73% of B2B buyers said they actively avoid suppliers who send irrelevant outreach. Relevant means a reason for this account, this person and this month: the signal you saw, the problem it points to and one specific question. Write tier 1 emails by hand. For tier 2, write per segment and open with something true about the company. Stop after three or four touches over two to three weeks.
Each Sales Navigator plan includes 50 InMail messages a month. Spend them on tier 1 buying group members you can’t reach by email, after they’ve seen your ads or the founder’s posts.
In the US, the FTC says CAN-SPAM “makes no exception for business-to-business email.” Every email needs a valid postal address and an opt-out you honor within 10 business days, and the FTC’s guide lists penalties of up to $53,088 per email. In the UK, the ICO says you can email companies if you don’t hide who you are and give a valid address to opt out, but sole traders and some partnerships count as individuals. The ICO says this guidance is under review because of the Data (Use and Access) Act. Check each EU country’s rules before emailing prospects there.
Define an opportunity before you count one, for example a first meeting with a buying group member who confirmed a problem, a timeline and who else is involved. Give every opportunity a required source field, set at creation and never overwritten: outbound, inbound demo, product signup, partner, event or referral. Report opportunities created each week by source and tier, against a target.
Write exit criteria for each stage, then track the share of opportunities that reach the next stage and how long they sit. Compare sources on conversion, not only volume. Say outbound creates 20 opportunities a month and 25% reach proposal, while inbound creates 10 and 50% do. Both produce five proposals, so the case for more outbound rests on cost per proposal.
Add a required free-text field labeled “How did you hear about us” to demo and signup forms, and have sellers ask again on the first call. Code the answers monthly into a few categories. They pick up podcasts, communities, AI assistants, peers and founder posts that click tracking misses. They’re imperfect too, so read them next to the source field and study where the two disagree.
Each gives all the credit to one moment for one person, in a purchase that involves many people over months. HubSpot’s default properties show the limit: Original Traffic Source is “the first known source through which the contact interacted with your business”, and Latest Traffic Source is the most recent. Both describe one contact, usually whoever filled in the form.
Tracking also loses the start of long journeys. Safari caps cookies set by JavaScript at seven days, so a reader who returns after more than a week away can look new, and GA4 credits key events only to touches inside a lookback window of 90 days at most. First-touch ends up crediting whatever was recorded first, and last-touch the brand search or direct visit before the form. Treat both as partial views.
The founder chairs, whoever runs ops owns the dashboard, and every action leaves with an owner and a date.
Our growth audit ($1,000, two to three weeks) reviews your ad accounts, tracking, creative and landing pages against margin and pipeline, sets target numbers per channel and ends with a prioritized plan. See how we work with SaaS companies, read how to choose a growth partner if you’re weighing options, or book a 30-minute call.
Facts checked on 4 October 2026.