Series B
Series B is a startup's second major round of venture funding, raised once a company has proven product-market fit and is ready to scale. In B2B sales development, Series B works as a firmographic filter for list-building: these companies typically have fresh capital, aggressive growth targets, and expanding sales and marketing teams. That makes them prime targets for outbound prospecting and higher-intent pipeline generation.
What Series B really means
In venture-backed B2B markets, a Series B company is one that has already secured seed and Series A funding, demonstrated clear product-market fit, and raised a second major institutional round to scale. On platforms like Carta, the median Series B round grew to about $21M in Q1 2024, a 75% year-over-year increase, underscoring how much capital is concentrated at this stage. For B2B sellers, “Series B” is less about finance theory and more about a practical buying signal: these firms are investing heavily in go-to-market and infrastructure and are actively evaluating new tools and services.
Within B2B sales development and list-building, Series B is used as a firmographic attribute to prioritize accounts. SDR and RevOps teams regularly filter databases like Crunchbase, PitchBook, ZoomInfo, Apollo.io, or LinkedIn Sales Navigator by funding stage to pull fresh lists of Series B accounts in their ideal industries and geographies. The logic is simple: after a Series B raise, leadership is under pressure to hit ambitious ARR milestones, which often translates into larger budgets for sales acceleration tools, outsourced SDR programs, and revenue-impact services.
Series B companies also tend to ramp up sales and marketing investment. Benchmarks from SaaS Capital show growing B2B startups spend roughly 15% of revenue on sales and around 10% on marketing. At the same time, SDR teams are responsible for a substantial share of pipeline, studies from TOPO, The Bridge Group, and others find SDRs typically generate 30-45% (and in many cases more) of total B2B pipeline with median annual pipeline per SDR around $3M. When you combine new capital, rising GTM spend, and heavy reliance on outbound SDRs, Series B becomes a high-value signal for outbound list-building.
The role of Series B in sales strategy has evolved with market conditions. During the zero-interest-rate boom, Series B rounds were abundant and often oversized; targeting “recently funded” companies alone could yield meaningful results. Today, capital is more disciplined and the median wait time between Series B and Series C has stretched to roughly 800+ days, forcing companies to be more efficient with their spend. Modern sales organizations now treat Series B as one signal among many, combining it with revenue, headcount, tech stack, and intent data to build higher-quality account lists.
For B2B sales development teams, using Series B in list-building is ultimately about prioritization and relevance. A well-designed “Series B” segment allows SDRs to tailor messaging around growth, hiring, and scalability, reference the funding event credibly, and time outreach to when buying cycles are naturally opening. Agencies like SalesHive operationalize this by continuously monitoring new Series B announcements, updating account lists, and launching multi-channel outbound programs that turn funding events into predictable meetings and pipeline.
The upside of getting series b right
What teams gain when this is run well as part of a disciplined outbound motion.
Higher Purchasing Power and Budget Readiness
Series B companies have just raised substantial capital and are under pressure to deploy it toward growth. That often means larger, pre-approved budgets for sales productivity tools, services, and partnerships, so outbound teams see shorter budget objections and faster deal cycles when targeting this segment.
Stronger Fit for Sales Acceleration Solutions
At Series B, leadership is focused on building scalable sales engines rather than experimenting with basic go-to-market motions. This makes them a strong fit for solutions like SDR outsourcing, data enrichment, and sales engagement platforms, increasing conversion rates from first meeting to opportunity.
Clear Trigger Events for Timely Outreach
Funding announcements provide precise trigger events for list-building and outreach cadences. By tracking new Series B rounds and prioritizing these accounts, SDR teams can reach buyers just as they are planning headcount expansion, new tools, and process changes, dramatically improving reply and meeting rates.
Better Segmentation and Personalization
Using Series B as a firmographic filter allows teams to create tighter segments by stage, growth profile, and likely priorities. SDRs can personalize messaging around scaling pain points, for example, ramping SDR teams, entering new markets, or tightening sales operations, leading to more relevant conversations.
Predictable Pipeline Contribution
Because Series B companies share similar structural needs, scaling ARR, building sales leadership, and formalizing processes, they behave more predictably as a segment. This makes pipeline modeling more reliable and helps revenue leaders attribute a consistent portion of new opportunities to Series B, focused outbound.
How to do it well
Practical guidance from the team that runs outbound campaigns every day.
Combine Series B with Multi-Dimensional ICP Filters
Use Series B as a starting point, then refine lists by industry, ACV band, geo, tech stack, headcount, and revenue. This multi-dimensional approach yields smaller, higher-intent segments that are more likely to convert into qualified pipeline.
Monitor Funding Events Continuously and Refresh Weekly
Automate alerts for new Series B rounds from data providers and ingest them into your CRM or data warehouse. Refresh these lists at least weekly so SDRs are always working the freshest accounts while momentum is highest.
Tailor Messaging to Growth and Scale Challenges
Build playbooks that explicitly reference Series B realities: aggressive ARR targets, hiring ramp, new geo launches, and the need for repeatable outbound. This context shows you understand their stage and positions your offering as a lever to de-risk scale, not just another tool.
Prioritize Economic Buyers and Emerging Revenue Leaders
At Series B, roles like VP of Sales, Head of Revenue Operations, and VP of Marketing often gain more budget authority. Aim outbound at these titles first and use multi-threading with adjacent stakeholders (Sales Enablement, SDR Leaders) to secure consensus.
Segment Cadences by Recency of Funding
Create distinct cadences for 0-30 days, 30-90 days, and 90-365 days post-funding. Early windows should emphasize strategy and planning cycles; later windows can focus on optimization, efficiency, and hitting the next-round metrics.
Align SDR Capacity with Series B Opportunity Volume
Benchmark how much pipeline each SDR is expected to create and match that against the number of new Series B accounts entering your TAM. If outbound SDRs typically generate around $3M in pipeline per year, plan territory and account coverage accordingly.
Common challenges and pitfalls
The traps that quietly erode results, and what to do instead.
High Competition on Recently Funded Accounts
Every vendor with access to funding news is chasing the same Series B logos. Prospects can be overwhelmed with inbound pitches in the weeks after an announcement, which increases noise and reduces response rates if your targeting and messaging are not differentiated.
Data Accuracy and Timing Gaps
Funding data can lag by days or weeks across different providers, and some rounds are kept partially undisclosed. This leads to stale lists, missed windows of intent, or wasted effort on companies that raised long ago and are no longer in an active buying cycle.
Over-Reliance on Funding Stage Alone
Treating "Series B" as the only targeting criterion can produce bloated, low-fit lists. Without layering in industry, tech stack, revenue, and use-case fit, SDRs spend time on accounts that have capital but little need or urgency for your specific solution.
Misaligned Personas and Buying Committees
Series B organizations are in transition, new executives arrive, roles change, and buying committees expand. If your personas aren't updated, SDRs may target titles that no longer own the problem or budget, resulting in stalled deals and low opportunity-to-close rates.
Short-Lived Momentum After the Announcement
The "funding buzz" decays quickly. If your team can't operationalize list-building and outreach within days, you risk contacting prospects after plans and budgets have already been set, which lowers your leverage and makes it harder to position yourself as a strategic partner.
Series B FAQs
The short version is on the surface. Open any question to go deeper.
Related terms
Other concepts worth knowing in the same corner of outbound.
Put series b to work for your pipeline.
Book a 30-minute strategy call and we’ll map out exactly how SalesHive books qualified meetings for your team.