HubSpot, Inc. vs Klaviyo, Inc.: Strategic Comparison

This in-depth comparison examines HubSpot, Inc. and Klaviyo, Inc. across revenue, market value, business model, competitive positioning, and long-term growth strategy. Whether you are researching HubSpot, Inc. on its own, evaluating Klaviyo, Inc., or weighing the two companies side by side, the breakdown below highlights where each company leads and where the gap between HubSpot, Inc. and Klaviyo, Inc. is widest.

On the headline numbers, annual revenue is $3.1B (FY2025) for HubSpot, Inc. and $1.2B (FY2025) for Klaviyo, Inc., while their respective market capitalizations stand at $11.0B and $4.5B. Both HubSpot, Inc. and Klaviyo, Inc. are headquartered in United States. Their local markets and applicable rules may still differ.

HubSpot, Inc.: HubSpot is a Cambridge, Massachusetts software company that coined and popularized the term 'inbound marketing'. Its founders argued that businesses should attract buyers with blogs, search, and social content instead of buying their attention. HubSpot built the software to run that playbook and then expanded it into a full CRM covering marketing, sales, customer service, websites, data, and payments. Today it describes itself as an agentic customer platform for scaling businesses, competing most directly with Salesforce in the mid-market.

Klaviyo, Inc.: If a shopper abandons a cart and gets a reminder email or text a little later, there is a good chance Klaviyo sent it. The company stores each brand's customer and event data and lets marketers build automated flows, campaigns and, increasingly, AI agents on top of it. It began with Shopify merchants and now also sells to larger brands such as Warner Music Group, the San Francisco 49ers and Claire's. The company is headquartered in Boston, Massachusetts.

HubSpot, Inc. and Klaviyo, Inc. pursue distinct approaches to generating revenue, and understanding how each company operates is the foundation of any fair comparison between HubSpot, Inc. and Klaviyo, Inc..

HubSpot, Inc. business model: HubSpot sells subscriptions to its customer platform. A free CRM and free tiers of each hub bring businesses in at no cost; paying customers then move up through Starter, Professional, and Enterprise editions, add hubs, and buy seats and AI credits. Subscription revenue was $3.06 billion of the $3.13 billion total in fiscal 2025, with professional services (onboarding and training) making up the remaining $67.3 million. Average subscription revenue per customer was about $11,800 in Q2 2026. A network of solutions partners (agencies and consultancies) resells, implements, and services much of the base, which keeps HubSpot's own services business small.

Klaviyo, Inc. business model: Klaviyo sells software subscriptions to consumer brands. Email plans are priced mainly by the number of active profiles a brand stores; SMS and WhatsApp are sold as message credits; and add-ons such as Klaviyo CDP, Reviews, Customer Hub/service tools and AI agents raise spend per account. A free tier lets small stores start without a sales call, and pricing rises automatically as a merchant's list and send volume grow. Revenue expansion comes from three levers: customers growing, customers adding channels, and customers adopting more products. At June 30, 2026, 20% of ARR came from customers using three or more products and net revenue retention was 109%.

The durability of a company's moat often decides long-term winners. Here is how the competitive advantages of HubSpot, Inc. stack up against those of Klaviyo, Inc..

HubSpot, Inc. competitive advantage: HubSpot's edge is ease of use on a single data model. Marketing, sales, service, content, and commerce records sit in one Smart CRM, so a mid-market company can run its go-to-market stack without the consultants and integration work that Salesforce or Microsoft Dynamics 365 often require. The free CRM keeps the top of the funnel full, HubSpot Academy and the annual conference built a large professional community, and its partner network handles implementation at scale. That combination gives HubSpot unusually efficient reach into businesses with roughly 10 to 2,000 employees.

Klaviyo, Inc. competitive advantage: Klaviyo's edge is data plus distribution. Its event database stores every product view, cart and order alongside the customer profile, so segmentation and triggered messages work in near real time without an outside data warehouse. Its Shopify integration and partner network make it the default retention tool for many mid-sized online brands, and its self-serve pricing lets small stores start cheaply and grow into enterprise contracts.

Future prospects matter as much as current results. The growth strategies below explain how HubSpot, Inc. and Klaviyo, Inc. each plan to expand from here.

HubSpot, Inc. growth strategy: HubSpot is pursuing three growth paths. First, moving upmarket with Enterprise editions, custom objects, and data tools so larger customers consolidate on HubSpot. Second, selling more hubs and seats to its installed base of more than 306,000 customers. Third, monetizing AI through Breeze agents (customer service, prospecting, data, and content agents) and usage-based credits. HubSpot also keeps buying audience: HubSpot Media, built around The Hustle and the My First Million podcast, added creator-led Starter Story in February 2026.

Klaviyo, Inc. growth strategy: Klaviyo is pushing upmarket (4,477 customers paid more than $50,000 in ARR at June 30, 2026, up 36%), expanding abroad, cross-selling SMS, WhatsApp, Reviews, CDP and service products, and repositioning from email tool to autonomous B2C CRM. Partnerships with Shopify, Stripe, Anthropic and Figma extend where its data and agents can be used.

A closer look at the financial trajectory of HubSpot, Inc. and Klaviyo, Inc. rounds out the comparison.

HubSpot, Inc.: HubSpot spent its first 18 years trading losses for growth: GAAP net losses ran from $39.7 million in 2017 to $164.5 million in 2023. The turn came in 2024 with $4.6 million of net income on $2.63 billion of revenue, followed by $45.9 million on $3.13 billion in 2025. In Q2 2026 revenue reached $911.7 million (up 20% as reported, 17% in constant currency), subscription revenue was $894.0 million, and non-GAAP operating margin improved to 20.3%. Full-year 2026 guidance calls for roughly $3.68 billion of revenue and about a 21% non-GAAP operating margin. HubSpot, Inc. is a major American developer of software products for inbound marketing and sales, sustaining a market valuation typically exceeding $30 billion.

Klaviyo, Inc.: Klaviyo's revenue rose from $290.6 million in 2021 to $472.7 million in 2022, $698.1 million in 2023, $937.5 million in 2024 and $1.234 billion in 2025. The 2023 net loss of $308.2 million was inflated by IPO-related stock compensation; losses narrowed to $46.1 million in 2024 and $31.8 million in 2025. On a non-GAAP basis the business is profitable: 2025 non-GAAP operating margin was 14% and free cash flow margin was 16%. For Q2 2026 it reported $370.6 million revenue, 73% gross margin, a $15.0 million GAAP operating loss, $50.9 million non-GAAP operating income and $82.9 million of free cash flow. Klaviyo, Inc. is a major marketing automation platform specifically tailored for e-commerce, maintaining a market valuation generally exceeding $8 billion.