Plumbline Series B
Series B pitch deck that proves the machine, not the product
Plumbline raised its Series A on a construction estimating product and is now raising $25M to expand into two new countries. The Series B deck has no problem slide, because the investor is buying the efficiency of the growth engine, so cohorts, magic number and the hiring plan take the space the story used to.
Every slide, in order
The whole deck as it renders, one slide after another. Read it the way the audience would.
The structure
What each slide is doing, so you can reuse the order even with different content.
- Slide 1cover
- A report style cover with the three headline facts where a tagline would usually go.
- Slide 2takeaway
- No problem slide. The deck opens on the three things that changed since the A.
- Slide 3metrics
- ARR over eight quarters: $4.1M at the A to $18.4M today.
- Slide 4metrics
- The Series B question answered in one table: what do the older cohorts do at 24 months?
- Slide 5metrics
- The efficiency wall: eight numbers that describe the machine, not the product.
- Slide 6comparison
- Now against next: the same machine with more fuel, stated as two columns.
- Slide 7process
- The roadmap in three lanes, four cards each, so the two new lines look staffed, not aspirational.
- Slide 8tree
- The org plan as a chart with headcount now and in 18 months, so the use of funds is a hiring plan.
- Slide 9metrics
- The map with ARR per live country, and the two FY27 launch countries shaded.
- Slide 10metrics
- Three ARR scenarios to 2028, with the takeaway panel naming each endpoint.
- Slide 11investment
- The $25M ask as a table that maps one to one onto the org plan and roadmap slides.
- Slide 12closing
- A plain thank you with the diligence file named, because the audience is already modelling.
How to adapt this deck
Pre-expansion companies cut the map and the country launch rows and let the roadmap lanes carry the growth story; the cohort table and efficiency wall stay, because they are the round. Against the Series A deck for this same company, the A opens with a problem and one metrics run while the B opens with insights and runs four numbers slides; reading the two side by side is the fastest way to feel the genre shift. A growth equity version pushes further: add a P&L bridge to profitability and drop the roadmap to one slide.
Which pitch deck do you need?
This page completes the stage ladder: pre-seed, seed and Series A examples cover the earlier rounds, with the investor pitch deck example as the hub. Plumbline’s own Series A deck is on this site, so the same company can be read at both stages. For the reporting decks that follow a B, see the investor update and board meeting examples.
What makes this deck work
There is no problem slide
Slide two is three insights: NRR at 124%, payback down to 11 months, and 40% of new ARR from expansion. By the B, the investor already believes the category; opening on what changed since the A turns the whole deck into a progress report, which is the genre a growth investor trusts.
The cohort table answers the 24 month question
Six annual cohorts are shown at both 12 and 24 months, with the 2020 cohort at 133% and 2021 at 131% at the two year mark. Series B diligence lives on whether expansion persists after the land grab, and this table answers it in one grid instead of an appendix of charts.
The use of funds is a hiring plan
The org chart shows headcount now and in 18 months for six functions, 61 growing to 121, and the $25M table then funds exactly those moves: two country launches at 36%, an 18 rep enterprise team at 28%. When the ask reconciles to the org plan, the round has a shape instead of a size.
Questions people ask
What is different about a Series B deck?
The burden of proof moves from the product to the machine. This example replaces the problem slide with three insights, adds a cohort retention table and an efficiency wall, and turns the use of funds into a hiring plan. The story slides that carried the seed and A are simply gone.
Do I still need a problem slide at Series B?
No, and including one can read as a step backwards. An investor writing a $25M cheque has already accepted the category exists. Open on evidence, as this deck does with retention, payback and expansion mix, and let the problem live inside the roadmap slide where new product lines justify themselves.
Which efficiency metrics matter at the B?
Magic number, burn multiple, CAC payback, NRR and win rate. Plumbline prints all eight of its numbers on one dashboard wall: magic number 1.3, burn multiple 0.9, payback 11 months, NRR 124%. One slide, eight numbers, no narrative: growth investors will screenshot exactly this.
How do I show cohort retention?
As a table of annual cohorts with NRR at fixed ages, the way slide four shows six cohorts at 12 and 24 months. Curves look better but tables get audited, and Series B diligence is an audit. Label the young cohorts honestly: the 2025 row here reads n/a at 24 months rather than an extrapolation.
How big is a typical Series B ask?
Recent market data puts most software Series B rounds in the tens of millions, and the deck should justify the number structurally rather than by comparables. Plumbline asks for $25M because the org plan, two country launches and 30 months of runway at plan sum to it, and that arithmetic is on the slides.
Can the org chart be edited after export to PowerPoint?
The org chart artwork exports as a picture with its labels as native text boxes, so names and headcounts stay editable while the tree redraws only in the original editor. The tables and charts around it export as fully native PowerPoint objects in the editable PPTX format.
Build your own in about a minute
The button below opens the generator with this use case already described. Change the wording to match your own, generate, then edit anything you like.
Make my series b pitch deck that proves the machine, not the productOther presentation examples
Series A deck
A Series A for Plumbline, an invented company that gets American construction subcontractors paid faster by moving lien waivers and retainage out of email. It opens the way a Series A actually opens, on twenty three months of momentum rather than on a problem statement, and it carries the three things a seed deck never has: a named competitive landscape, a real profit and loss summary, and a closing slide built to stay on the screen for the whole question period.
Pre seed pitch deck
A complete pre seed round for Burrow, an invented veterinary software company with a prototype, three unpaid design partners and no revenue at all. It is built the way pre seed decks are actually built rather than as a shrunken seed deck: the founders arrive on slide two because at this stage the founders are the investment, and the traction chart is replaced by the evidence a pre revenue company can honestly show.
Marketplace pitch deck example that shows both sides on one slide
Paddockshare lets farmers hire idle machinery from neighbours by the day and takes 12% of each booking. The deck spends one slide on each side of the market and one number on how often a search becomes a booking, because liquidity is the thing a marketplace investor is actually funding.
Want the steps in the builder? Read Make a pitch presentation with AI, then Add charts, maps and diagrams to slides. For everything this generator can do, see the presentation maker.
Written and checked by the OneCraft team. Last checked .