Similarweb : 1Q24 Investor Presentation

INVESTOR PRESENTATION

Q1 2024

OUR VISION

Powering the world's businesses with the best digital data

NOTES REGARDING THIS PRESENTATION

This presentation contains "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward- looking statements include statements relating to the expected performance of our business, future financial results, strategy, long-term growth and overall future prospects, our customers' continued investment in digital transformation and reliance on digital intelligence and the size and our ability to capitalize on our market opportunity, and statements relating to our guidance for the second quarter and full year of 2024. Forward-looking statements include all statements that are not historical facts. Such statements may be preceded by the words "intends," "may," "will," "plans," "expects," "anticipates," "projects," "predicts," "estimates," "aims," "believes," "hopes," "potential" or similar words. These forward-looking statements reflect our current views regarding our intentions, products, services, plans, expectations, strategies and prospects, which are based on information currently available to us and assumptions we have made. Actual results may differ materially from those described in such forward-looking statements and are subject to a number of known and unknown risks, uncertainties, other factors and assumptions that are beyond our control. Such risks and uncertainties include, without limitation, risks and uncertainties associated with: (i) our expectations regarding our revenue, expenses and other operating results; (ii) our ability to acquire new customers and successfully retain existing customers; (iii) our ability to increase usage of our solutions and upsell and cross-sell additional solutions; (iv) our ability to achieve or sustain profitability; (v) anticipated trends, growth rates, rising interest rates, rising global inflation and current macroeconomic conditions, and challenges in our business and in the markets in which we operate, and the impact of Israel's war with Hamas and other terrorist organizations on geopolitical and macroeconomic conditions or on our company and business; (vi) future investments in our business, our anticipated capital expenditures and our estimates regarding our capital requirements; (vii) the costs and success of our sales and marketing efforts and our ability to promote our brand; (viii) our reliance on key personnel and our ability to identify, recruit and retain skilled personnel; (ix) our ability to effectively manage our growth, including continued international expansion; (x) our reliance on certain third party platforms and sources for the collection of data necessary for our solutions; (xi) our ability to protect our intellectual property rights and any costs associated therewith; (xii) our ability to identify and complete acquisitions that complement and expand our reach and platform; (xiii) our ability to comply or remain in compliance with laws and regulations that currently apply or become applicable to our business, including in Israel, the United States, the European Union, the United Kingdom and other jurisdictions where we elect to do business; (xiv) our ability to compete effectively with existing competitors and new market entrants; and (xv) the growth rates of the markets in which we compete. These risks and uncertainties are more fully described in our filings with the Securities and Exchange Commission, including in the section entitled "Risk Factors" in our Form 20-F filed with the Securities and Exchange Commission on February 28, 2024, and subsequent reports that we file with the Securities and Exchange Commission. Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. In light of these risks, uncertainties and assumptions, we cannot guarantee future results, levels of activity, performance, achievements, or events and circumstances reflected in the forward-looking statements will occur.Forward-looking statements represent our beliefs and assumptions only as of the date of this presentation. Except as required by law, we undertake no duty to update any forward-looking statements contained in this release as a result of new information, future events, changes in expectations or otherwise.

Certain information contained in this presentation relates to or is based on studies, publications, surveys and other data obtained from third-party sources and the Company's own internal estimates and research. While the Company believes these third-party sources to be reliable as of the date of this presentation, it has not independently verified, and makes no representation as to the adequacy, fairness, accuracy or completeness of any information obtained from third-party sources. In addition, all of the market data included in this presentation involves a number of assumptions and limitations, and there can be no guarantee as to the accuracy or reliability of such assumptions. Finally, while we believe our own internal research is reliable, such research has not been verified by any independent source.

As a reminder, certain financial measures we use in this presentation and on our call today are expressed on a non-GAAP basis. We use these non-GAAP financial measures internally to facilitate analysis of our financial and business trends and for internal planning and forecasting purposes. We believe these non-GAAP financial measures, when taken collectively, may be helpful to investors because they provide consistency and comparability with past financial performance by excluding certain items that may not be indicative of our business, results of operations, or outlook. However, non-GAAP financial measures have limitations as an analytical tool and are presented for supplemental informational purposes only. They should not be considered in isolation from, or as a substitute for, financial information prepared in accordance with GAAP. Free cash flow represents net cash provided by (used in) operating activities less capital expenditures and capitalized internal-use software costs. Normalized free cash flow represents free cash flow less capital investments related to the Company's new headquarters, payments received in connection with these capital investments and deferred payments related to business combinations.. Non-GAAP operating income (loss), non-GAAP gross profit, non-GAAP gross margin, non-GAAP operating margin, non-GAAP research and development expenses, non-GAAP sales and marketing expenses and non-GAAP general and administrative expenses represents the comparable GAAP financial figure, less share-based compensation, adjustments and payments related to business combinations, amortization of intangible assets and certain other non-recurring items, as applicable and indicated in the above tables.

In accordance with SEC regulations, you can find the definitions of these non-GAAP measures, as well as reconciliations to the most directly comparable GAAP measures in this presentation and in our earnings press release and supplemental financials, which can be found on our investor relations website at ir.similarweb.com.

This presentation is a high-level summary of our Q1 2024 financial results. For more information please refer to our press release dated May 7, 2024 and filings with the SEC.

Title and full exclusive ownership rights in the information and intellectual property included or referenced herein (including the Similarweb name, logo and other marks) remain solely with Similarweb (except for third party trademarks and logos, which remain the property of their respective owners). All rights not expressly granted herein are reserved.

INVESTOR PRESENTATION Q1 2024 INVESTOR PRESENTATION Q4 2022

Introducing Similarweb

Powering data-driven decisions of multi-billion dollar businesses

by helping them:

Understand market trends	Benchmark performance	Discover new markets,
and dynamics	to enable continuous	prospects, revenue streams
	Improvement
Monitor competitors and	Improve customer	Be among the first to react to
react instantly	conversion rates and loyalty	change and opportunity

INVESTOR PRESENTATION Q1 2024 INVESTOR PRESENTATION Q4 2022

Similarweb by the numbers

EFFICIENT &

PREDICTABLE BUSINESS MODEL

Q1 2024

$214M

RPO with 75% to be recognized over the next 12 months

$59.0M

81%	42%
Q1 2024 gross margin	of ARR is multi-year
	subscriptions

12% $236M

58%

of total ARR from $100K+ ARR customers

107%

Q1 2024 revenue	Q1 2024 YoY
	revenue growth

~987 employees	New York	London	Tokyo
& contractors in	Burlington	Paris	Singapore
Miami	Munich	Sydney
14 locations	San Paulo	Prague
Santiago	Kyiv
		Givatayim

Note: We calculate our NRR as of a period end by starting with the ARR from the cohort of all customers as of 12 months prior to such period-end, or the Prior Period ARR. We then calculate the ARR from these same customers as of the current period-end, or the Current Period ARR. Current Period ARR

INVESTOR PRESENTATION Q1 2024 includes any expansion and is net of contraction or attrition over the last 12 months, but excludes ARR from new customers in the current period. We then INVESTOR PRESENTATION Q4 2022divide the Current Period ARR by the Prior Period ARR to arrive at the point-in-time NRR. We then calculate the average of the trailing four quarter point-in-

time NRR to arrive at the NRR.

Q1 2024 Revenue

Annualized

(Q1 2024 Revenue * 4)

Q1 2024 Dollar-based net retention rate

for $100K+ ARR customers

Similarweb is a digital data company that delivers actionable insights.

OUR DIGITAL DATA

Similarweb reveals what is happening online and provides businesses with the essential digital data

• analytics needed to build strategy, optimize customer acquisition and increase monetization.

OUR MISSION

To create the most accurate,

comprehensive, and actionable digital data, so every business can win their market.

INVESTOR PRESENTATION Q1 2024 INVESTOR PRESENTATION Q4 2022

We create our core data asset from ~1% of interactions and transactions

on the internet

1.	2.	3.		4.
COLLECTION	SYNTHESIS	MODELING		DATA SET - SIMILARWEB DIGITAL DATA
● First Party Direct Measurement	> Cleaning	Machine	Predictive	● Search	● Content
● Contributor Network	> Matching	Learning	Models	● Advertising	● Audience
● Public Data	> Synthesizing	Calibration		● Traffic & Engagement	● Purchase
● Partnerships	> Processing			● App	● Industry
	> Blending

INVESTOR PRESENTATION Q1 2024 INVESTOR PRESENTATION Q4 2022

Our proprietary Similarweb Digital Data covers extensive web and mobile activity

Traffic Engagement

Content

Purchase

Search

Industry

Audience

Advertising

App

Reach

Total Visits

Unique Visits

Traffic Sources

Deduplicated Audience

Global & Country Rank

Geo

Breakdown

Website Usage

Bounce Rate

Page Views

Visit Duration

Desktop vs. Mobile Web

Content

Subdomains

Segments / Folders

Popular

Products

Page Traffic

Similar Sites

Firmo- graphics

Consumer	Consumer
Transaction	Intent
E-commerce	Keyword
Conversions	Analysis
Amazon	On-site
Purchases	Search
Travel	Keyword
Bookings	Competitors

Analysis	Consumer
Benchmarking	Behavior
Top Sites	Audience
Overlap
Market Share	Demo-
graphics
Industry Trends	Audience
Loyalty
	New vs.
	Returning
	Users

Marketing	App reach
spend
Display	MAUs/ DAUs
Social	App Rank &
Top Apps
Paid	Install
Advertising	Penetration
Spend
	App Demo-
	graphics
	Related Apps/
	Sites
	App User
	Retention
	App
	Downloads

INVESTOR PRESENTATION Q1 2024 INVESTOR PRESENTATION Q4 2022

Similarweb is vital to businesses competing in the digital world

B2C (~75% of TAM)

Want to capture an audience across all digital channels and monetize it

B2B (~15% of TAM)

Want to sell (software or services or media) to the B2C companies

INVESTORS (~10% of TAM)

Want to invest in B2C or B2B companies (private or public) that play in the digital world

INVESTOR PRESENTATION Q1 2024 INVESTOR PRESENTATION Q4 2022

Similarweb offerings help businesses win their market online

B2C		B2B	INVESTORS
Digital		Sales	Stock
Intelligence	Intelligence	Intelligence
Websites	Marketplaces	Mobile Apps

Data-as-a-Service

Similarweb Digital Data

INVESTOR PRESENTATION Q1 2024 INVESTOR PRESENTATION Q4 2022

Business leaders access Similarweb Digital Data through our SaaS and DaaS

solutions to make mission-criticalgrowth-related business decisions

Similarweb Solution

Use Cases

Players

Similarweb	Similarweb	Similarweb	Similarweb	Similarweb
Digital Research	Digital Marketing	Shopper	Sales	Investor
Intelligence	Intelligence	Intelligence	Intelligence	Intelligence
Grow market	Grow user	Grow eCommerce	Grow pipeline	Grow ROI
share	acquisition	sales	& win rates	& drive alpha
Benchmarking	Competitive Analysis	Consumer insights & demand	Lead Generation	Digital Alternative Data Set
Company Research	Keyword Research	Shopper search trends	Sales Engagement	Digital Stock Signals
Market Research	Affiliate Research	Shopper Behavior	Lead Enrichment	Insights
Audience Analysis	Ad Research & Media Buying		Fraud Detection	Pre-earnings Estimation
Consumer Journey Tracking				Reports

App Intelligence

Learn more	Learn more	Learn more	Learn more	Learn more
INVESTOR PRESENTATION Q4 2022