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Notes from inside the growth department
Insights on how B2B companies grow, written from the work, and news from Codax.
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Answers to the questions founders and CEOs ask most about growth, and what the Codax team has been doing.
Featured guide9 min read
The YC growth playbook: from day one of the batch to a repeatable pipeline
The growth playbook for YC startups runs in four stages: hit a weekly growth rate during the batch, lead with traction at Demo Day, grow past the founder's network to the first 100 customers, then build a repeatable pipeline before Series A. The founder stays the voice and the closer, while lists, signals, tested copy and a monthly pipeline review are built around them.
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Insight7 Oct 2026 · 13 min readFor CEOs who dominate a niche: how to grow when every account mattersWhen you can name every buyer in your market, more leads will not help. Growth comes from winning the accounts you can name, selling more into the ones you serve and staying the name the category trusts.Read
Insight5 Oct 2026 · 11 min readFor B2B companies that grow in person: how to build a digital pipeline without losing what worksField sales, trade shows and client dinners still win business. Buyers now decide who to meet before any of them happen. Here is how to add the digital layer and keep everything that works in person.Read
Insight1 Oct 2026 · 11 min readMarketing for industrial companies: how to be found by the engineers who buyThe plant, the process and decades of know-how make an industrial business hard to copy. They also make it hard to find. Here is how to show engineers and procurement teams what you can do.Read
Insight29 Sep 2026 · 12 min readRobotics go-to-market: how to sell automation into enterpriseDemand for robots is at record levels, but enterprise buyers move carefully. Here is how robotics and automation companies win the committee, design pilots that become fleets and prove ROI to finance.Read
Insight22 Sep 2026 · 9 min readModernising an enterprise brand without losing what it stands forYour reputation took decades to build. Here is how to modernise the way the firm looks, sounds and shows up online, in stages, without losing what people trust.Read
Accelerator founders8 Sep 2026 · 9 min readThe pipeline numbers Series A investors want to see from B2B seed companiesYour Series A deck has to prove revenue comes from a system, not from the founder's network. The pipeline is where investors check.Read
YC growth playbook26 Aug 2026 · 8 min readThe GTM tool stack for seed-stage startups: what to use and whyBuy tools for jobs, not for logos. Here is what each part of an early GTM stack does, when you need it, and the order to add it so the stack stays small.Read
Insight12 Aug 2026 · 9 min readWhen the business does not run on marketing: brand and events for large enterprisesBanks, telcos and large professional firms win through relationships, tenders and reputation. Here is how to run brand, executive presence and events so they decide the shortlist.Read
Accelerator founders5 Aug 2026 · 9 min readHow to spend the YC $500K: a growth budget for your first 12 monthsThe YC deal gives you $500,000 and no rules on how to spend it. Here is a framework for splitting it across the first 12 months so it buys the evidence your next round needs.Read
YC growth playbook22 Jul 2026 · 9 min readOutbound for founders: LinkedIn and email tips that book callsSmall lists, a warm-up before the first touch, three messages in the founder's own words and a waitlist that closes. Here is the sequence, step by step.Read
YC growth playbook14 Jul 2026 · 10 min readSignal-based selling: how to find the buyers who are ready nowMost of your market is not buying today. Here is how to spot the accounts that are, score their signals in a model you can build in a week, and reach them the same day.Read
Insight1 Jul 2026 · 9 min readFor CEOs of referral-dependent businesses: how to grow beyond your networkReferrals prove your work is good. They cannot tell you where next year's revenue will come from. Here is how to build on that strength and reach buyers who have never heard of you.Read
YC growth playbook23 Jun 2026 · 9 min readThe B2B buyer journey has changed: what it means for a startup selling to companiesOne buyer and a tidy funnel have given way to a committee that researches on its own and picks a shortlist before the first call. Here is how a startup gets on it.Read
Insight9 Jun 2026 · 9 min readStuck at $5M ARR: how to get to the next stageWhat got you to $5M was real. It was also finite. Here is how to find where the growth went and build the engine that takes you to the next stage.Read
Accelerator founders27 May 2026 · 9 min readHow to get your startup named by ChatGPT and Google AI answersBuyers now ask AI assistants for a shortlist before they visit a single vendor site. Here is how to make sure your startup is on it, using what Google and OpenAI publish about how their systems work.Read
YC growth playbook19 May 2026 · 10 min readHow to win paying design partners as an accelerator founderPaying design partners prove your pricing and shape your roadmap. Here is how to pick them, reach them, agree terms and turn them into the proof your next customers need.Read
Accelerator founders12 May 2026 · 9 min readFounding GTM engineer, SDR, first marketer or growth department? Your first GTM hire, comparedSix ways to make your first go-to-market hire, compared on who owns pipeline, ramp time, strategy, founder time and the cost of getting it wrong. Each one is right for someone. Here is how to tell which is right for you.Read
Accelerator founders28 Apr 2026 · 10 min readWhy cold outbound stopped working for startups, and what replaced itBulk sender rules, AI-written noise and buyers who research alone broke the volume playbook. Founders who still win with outbound send less, from their own name, to accounts already in motion.Read
Accelerator founders14 Apr 2026 · 10 min readSelling into the US from outside it: a GTM playbook for international foundersThe product travels easily. The trust does not. What US buyers check before they buy from a foreign startup, and how to answer each one.Read
Accelerator founders31 Mar 2026 · 9 min readSelling to enterprises as an unknown startup: security reviews, buying committees and credibilityLarge companies rarely reject a startup's product. They reject the risk. Here is how to close the credibility gap with proof, security readiness and the right people inside the account.Read
Insight18 Mar 2026 · 9 min readThe growth department: what it is, and the best way to grow a B2B companyMost B2B companies buy growth in pieces and nobody carries the number. Here is what a growth department is, how it works and when it is the right way to grow.Read
Accelerator founders11 Mar 2026 · 9 min readThe 90 days after Demo Day: a go-to-market plan for YC foundersDemo Day ends the batch and starts the clock. Here is a 90-day go-to-market plan, in three phases, that turns founder-led traction into a system without taking the founder out of it.Read
Accelerator founders4 Mar 2026 · 9 min readFrom 10 design partners to 100 customers: growing past your networkYour network gets you the first ten customers. The next ninety come from proof, a sharp account list and channels that make you known to strangers before they start looking.Read
YC growth playbook18 Feb 2026 · 9 min readHow to run your three months in an accelerator as a growth sprintThree months, one finish line. A 12-week plan that sets the goal and the ICP, runs tests and doubles down before Demo Day, with the founder kept as the voice throughout.Read
YC growth playbook4 Feb 2026 · 9 min readThe founder's LinkedIn playbook: profile, content and reach that bring buyers to youYour LinkedIn profile is the page buyers check before they reply. Build it as a landing page, publish on a cadence you can keep, and treat every like, vote and subscription as a signal.Read
YC growth playbook21 Jan 2026 · 9 min readHow to test a growth channel in four to six weeks, and when to scale itMost startups never finish testing a channel. Here is a four to six week test design, the arithmetic for sample size, a test log template and real results that show when to scale and when to cut.Read
YC growth playbook7 Jan 2026 · 10 min readAll the time in the world and no time at all: the founder mindset for speed and persistenceAct as if there is no time for everything you control. Persist as if there is all the time in the world for everything the buyer controls. Here are the rules, the evidence and the cadences.Read
Accelerator founders17 Dec 2025 · 9 min readFounder-led sales does not scale. The founder can.Founder-led sales is the right way to start, and accelerators are right to insist on it. What breaks is the founder's calendar, not the founder's voice. Here is how to keep the voice and remove the ceiling.Read
NewsNews · 11 December 2025Codax runs a go-to-market workshop for students at The Open University of Sri LankaNiketh de Silva and Dineth Ratnayake took students through taking an idea to market, building a go-to-market strategy and winning a first customer, and asked them why they were waiting to start.Read
Insight3 Dec 2025 · 10 min readHow to build a growth departmentA practical playbook for building a B2B growth team that owns pipeline, from the first role to the first quarterly review.Read
Insight27 Nov 2025 · 9 min readWhy YC founders stall on growth after product-market fitTalking to users and selling yourself is exactly right early on. The stall comes later, when the founder's own selling becomes the ceiling on the company.Read
NewsNews · 20 November 2025Codax leads account-based marketing training for Deloitte Maldives and Sri LankaDineth Ratnayake, Founder of Codax, took Deloitte's marketing and revenue operations teams through the modern martech stack, signal-based marketing and how the B2B buyer journey now runs with AI.Read
Insight12 Nov 2025 · 9 min readAgency, in-house or growth department? The options YC founders choose, comparedAfter Demo Day or a seed round, every founder faces the same question: who runs growth now? Here is how the seven common options compare, and when each one is the right call.Read
YC growth playbook4 Nov 2025 · 9 min readThe YC growth playbook: from day one of the batch to a repeatable pipelineFour stages, from the first week of the batch to a pipeline a Series A investor trusts. The moves, the numbers and the mistakes at each one, with the founder kept as the voice throughout.Read
Insight21 Oct 2025 · 3 min readFive standards every B2B webinar should meetMost B2B webinars are judged on registrations. That is the wrong number. A room of forty exact-fit buyers outperforms a room of four hundred.Read
NewsNews · 9 October 2025At TiE Colombo, Dineth Ratnayake on execution velocity, saying no and why ownership drives performanceIn a TiE Colombo fireside chat with Hariharan Padmanaban, Country Head for Hexaware Technologies in Sri Lanka, the Codax Founder argued that speed of execution, not the perfect plan, is what separates companies that started at the same point.Read
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News · 11 December 2025Codax runs a go-to-market workshop for students at The Open University of Sri LankaNews · 20 November 2025Codax leads account-based marketing training for Deloitte Maldives and Sri LankaNews · 9 October 2025At TiE Colombo, Dineth Ratnayake on execution velocity, saying no and why ownership drives performanceStart here
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