Exhibit 99.1

SIMILARWEB ANNOUNCES FOURTH QUARTER 2022 RESULTS
Fourth quarter 2022 revenue grew 28% year-over-year to $51.3 million
Non-GAAP operating margin improved by 25 percentage points

Annual Recurring Revenue Exceeds $200 Million

TEL AVIV, ISRAEL -- February 14, 2023 -- Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital intelligence company, today announced financial results for its fourth quarter ended December 31, 2022. The Company published a letter to shareholders from management discussing these results, which can be accessed at the link: https://ir.similarweb.com/financials/quarterly-results, located on the Company's investor relations website.
“We performed well in the fourth quarter as we navigated the challenging demand environment,” said Or Offer, Founder and CEO of Similarweb. “2022 was a year of challenges on many fronts. Despite the tough circumstances, we experienced both new customer growth and expansion from existing customers.” Offer continued, “Our customers tell us that we are more critical than ever to win their markets, and that they cannot get the data and actionable insights that we have anywhere else. We want to build on this in 2023 and return to being cash flow positive. It is in our hands, and we are focused on what we need to do to succeed.”
Fourth Quarter 2022 Financial Highlights
Total revenue was $51.3 million, an increase of 28% compared to $40.2 million for the fourth quarter of 2021.
GAAP operating loss was $(14.6) million or (28)% of revenue, compared to $(22.9) million or (57)% of revenue for the fourth quarter of 2021.
GAAP net loss per share was $(0.20), compared to $(0.32) for the fourth quarter of 2021.
Non-GAAP operating loss was $(10.9) million or (21)% of revenue, compared to $(18.4) million or (46)% of revenue for the fourth quarter of 2021.


Exhibit 99.1
Non-GAAP operating loss per share was $(0.14), compared to $(0.25) for the fourth quarter of 2021.
Cash and cash equivalents totaled $77.8 million as of December 31, 2022, compared to $128.9 million as of December 31, 2021.
Net cash used in operating activities was $(12.3) million, compared to $(10.4) million for the fourth quarter of 2021.
Free cash flow was $(14.6) million, compared to $(11.5) million for the fourth quarter of 2021.
Normalized free cash flow was $(13.8) million, compared to $(11.5) million for the fourth quarter of 2021.
Fiscal Year 2022 Financial Highlights
Total revenue was $193.2 million, an increase of 40% compared to $137.7 million for fiscal year 2021.
GAAP operating loss was $(87.9) million or (45)% of revenue, compared to $(66.1) million or (48)% of revenue for fiscal year 2021.
GAAP net loss per share was $(1.10), compared to $(1.30) for fiscal year 2021.
Non-GAAP operating loss was $(63.8) million or (33)% of revenue, compared to $(51.7) million or (38)% of revenue for fiscal year 2021.
Non-GAAP operating loss per share was $(0.84), compared to $(0.97) for fiscal year 2021.
Recent Business Highlights
Grew number of customers to 4,049 as of December 31, 2022, an increase of 16% compared to December 31, 2021.
Grew average annual revenue per customer to approximately $51,600 in the fourth quarter of 2022, an increase of 8% compared to the fourth quarter of 2021.
Grew number of customers with ARR of $100,000 or more to 337 as of December 31, 2022, an increase of 24% compared to December 31, 2021.


Exhibit 99.1
Customers with ARR of $100,000 or more contributed 55% of the total ARR as of December 31, 2022, compared to 51% as of December 31, 2021.
Dollar-based net retention rate for customers with ARR of $100,000 or more was 120% in the fourth quarter of 2022 as compared to 125% in the fourth quarter of 2021.
Overall dollar-based net retention rate was 109% in the fourth quarter of 2022 as compared to 113% in the fourth quarter of 2021.
Multi-year subscriptions now comprise 39% of our overall ARR as of December 31, 2022, as compared to 33% as of December 31, 2021.
Remaining performance obligations increased 24% year-over-year, to $171.0 million as of December 31, 2022, as compared to $137.5 million as of December 31, 2021.
Financial Outlook
“We intend to achieve sustained positive free cash flow quarterly by the fourth quarter of 2023,” said Jason Schwartz, Chief Financial Officer of Similarweb. “We have aligned our strategic objectives on balancing our revenue growth with accelerating our profitability. We continue to focus on disciplined execution in this challenging environment, which will be critical to accomplishing our objectives in 2023.”
Q1 2023 Guidance
Total revenue between $52.5 million and $53.0 million, representing 19% growth year-over-year at the mid-point of the range.
Non-GAAP operating loss between $(11.5) million and $(12.0) million. This includes non-GAAP gross margin anticipated in the range of 77.0% to 77.5%.
FY 2023 Guidance
Total revenue between $221.0 million and $222.0 million, representing 15% growth year-over-year at the mid-point of the range.
Non-GAAP operating loss between $(30.0) million and $(31.0) million, which includes non-GAAP gross margin anticipated in the range of 78.0% to 79.0%.


Exhibit 99.1
The Company’s first quarter and full year 2023 financial outlook is based upon a number of assumptions and trends observed from prior quarters that are subject to change and many of which are outside the Company’s control. Actual results may vary from these assumptions and trends from prior quarters, and the Company’s expectations may change. There can be no assurance that the Company will achieve these results.
The Company does not provide guidance for operating loss and gross margin, the most directly comparable GAAP measures to non-GAAP operating loss and non-GAAP gross margin, respectively, and similarly cannot provide a reconciliation to these measures to their closest GAAP equivalents without unreasonable effort due to the unavailability of reliable estimates for certain items, such as share-based compensation. These items are not within the Company’s control and may vary greatly between periods and could significantly impact future financial results.
Conference Call Information
The financial results and business highlights will be discussed on a conference call and webcast scheduled at 8:30 a.m. Eastern Time on Wednesday, February 15, 2023. A live webcast of the call can be accessed from Similarweb’s Investor Relations website at https://ir.similarweb.com. An archived webcast of the conference call will also be made available on the Similarweb website following the call. The live call may also be accessed via telephone at (877) 407-0713 toll-free and at (201) 689-7831 internationally.

About Similarweb: As a trusted platform for understanding online behavior, millions of people rely on Similarweb insights to strengthen their knowledge of the digital world. We empower anyone — from the curious individual to the enterprise business leader — to make smarter decisions by understanding why things happen across the digital ecosystem.

Forward-Looking Statements
This press release 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, including statements relating to our guidance for the first quarter and full year of 2023 described under "Financial Outlook". 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


Exhibit 99.1
assumptions we have made. Actual results may differ materially from those described in such forward-looking statements and are subject to a variety of assumptions, uncertainties, risks and factors that are beyond our control. Such risks and uncertainties include, without limitation, risks and uncertainties associated with (i) challenges associated with forecasting our revenue given our recent growth and rapid technological development, particularly in light of current macroeconomic uncertainty, (ii) our history of net losses and desire to increase operating expenses, thereby limiting our ability to achieve profitability, (iii) challenges related to effectively managing our growth, including as result of macroeconomic factors, (iv) intense competition in the market and services categories in which we participate, (v) potential reductions in participation in our contributory network and/or increase in the volume of opt-out requests from individuals with respect to our collection of their data, or a decrease in our direct measurement dataset, which could lead to a deterioration in the depth, breadth or accuracy of our data, (vi) our inability to attract new customers and expand subscriptions of current customers, (vii) changes in laws, regulations, and public perception concerning data privacy or change in the patterns of enforcement of existing laws and regulations, (viii) our inability to introduce new features or solutions and make enhancements to our existing solutions, (ix) real or perceived errors, failures, vulnerabilities or bugs in our platform, (x) potential security breaches to our systems or to the systems of our third-party service providers, (xi) our inability to obtain and maintain comprehensive and reliable data to generate our insights, (xii) changes in laws and regulations related to the Internet or changes in the internet infrastructure itself that may diminish the demand for our solutions, (xiii) failure to effectively develop and expand our direct sales capabilities, which could harm our ability to increase the number of organizations using our platform and achieve broader market acceptance for our solutions and (xiv) the impact that current worldwide geopolitical and macroeconomic uncertainty, including uncertainty resulting from the COVID-19 pandemic or other public health crises and the Russian military operations in Ukraine, and any related economic downturn could have on our or our customers' businesses, financial condition and results of operations.

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 March 25, 2022, 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


Exhibit 99.1
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 press release. 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.
Non-GAAP Financial Measures
This press release contains certain financial measures that 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 research and development expenses, non-GAAP sales and marketing expenses and non-GAAP general and administrative expenses represent the comparable GAAP financial figure operating income (loss) or expense, 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.

Other Metrics
Customer acquisition costs (CAC) represent the portion of sales and marketing expenses allocated to acquire new customers. Customer retention costs (CRC) represent the portion of sales and marketing expenses allocated to retain existing customers and to increase existing customers’ subscriptions. Annual recurring revenue (ARR) represents the annualized subscription revenue we would contractually expect to receive from customers assuming no increases or reductions in their subscriptions. CAC payback period is the estimated time in months to recover CAC in terms of incremental gross profit that newly acquired customers generate. Net retention rate (NRR) represents the comparison of our ARR from the same set of


Exhibit 99.1
customers as of a certain point in time, relative to the same point in time in the previous year ago period, expressed as a percentage.


Press Contact:
David Carr
Similarweb
press@similarweb.com

Investor Contact:
Raymond "RJ" Jones
Similarweb
ir@similarweb.com


Exhibit 99.1
Similarweb Ltd.
Consolidated Balance Sheets

U.S. dollars in thousands (except share and per share data)
December 31,December 31,
20212022
Assets
Current assets:
Cash and cash equivalents$128,879 $77,810 
Restricted deposits11,474 9,814 
Accounts receivable, net31,017 38,141 
Deferred contract costs8,470 9,789 
Prepaid expenses and other current assets7,847 6,628 
Total current assets187,687 142,182 
Property and equipment, net6,356 31,823 
Deferred contract costs, non-current9,208 8,348 
Operating lease right-of-use assets— 40,823 
Intangible assets, net11,617 9,561 
Goodwill11,318 12,867 
Other non-current assets813 441 
Total assets$226,999 $246,045 
Liabilities and Shareholders' equity
Current liabilities:
Borrowings under Credit Facility$— $25,000 
Accounts payable11,303 7,144 
Payroll and benefit related liabilities17,969 18,512 
Deferred revenue76,676 93,195 
Other payables and accrued expenses28,199 27,990 
Operating lease liabilities— 9,091 
Total current liabilities134,147 180,932 
Deferred revenue, non-current2,074 974 
Operating lease liabilities, non-current— 40,075 
Deferred rent2,602 — 
Other long-term liabilities3,262 2,113 
Total liabilities142,085 224,094 
Shareholders' equity
 Ordinary Shares, NIS 0.01 par value 500,000,000 shares authorized as of December 31, 2021 and 2022; 74,847,609 and 76,435,940 shares issued as of December 31, 2021 and 2022, respectively; 74,845,441 and 76,433,772 shares outstanding as of December 31, 2021 and 2022, respectively
205 210 
Additional paid-in capital324,614 345,834 
Accumulated other comprehensive income (loss)160 (367)
Accumulated deficit(240,065)(323,726)
Total shareholders' equity
84,914 21,951 
Total liabilities and shareholders' equity$226,999 $246,045 
    


Exhibit 99.1
Similarweb Ltd.
Consolidated Statements of Comprehensive Income (Loss)
U.S. dollars in thousands (except share and per share data)

Year Ended
December 31,
Three Months Ended
December 31,
2021202220212022
Revenues$137,668 $193,234 $40,151 $51,346 
Cost of revenues31,752 53,274 10,691 12,426 
Gross profit105,916 139,960 29,460 38,920 
Operating expenses
Research and development44,378 59,904 14,278 13,977 
Sales and marketing93,844 122,635 27,982 30,096 
General and administrative33,801 45,277 10,103 9,441 
Total operating expenses172,023 227,816 52,363 53,514 
Loss from operations
(66,107)(87,856)(22,903)(14,594)
Other income, net— 290 — 290 
Finance (expenses) income, net(1,891)4,421 (733)(375)
Loss before income taxes
(67,998)(83,145)(23,636)(14,679)
Provision for income taxes981 516 174 319 
Net loss
$(68,979)$(83,661)$(23,810)$(14,998)
Net loss per share attributable to ordinary shareholders, basic and diluted$(1.30)$(1.10)$(0.32)$(0.20)
Weighted-average shares used in computing net loss per share attributable to ordinary shareholders, basic and diluted53,201,603 75,718,623 74,685,076 76,197,984 
Net loss
$(68,979)$(83,661)$(23,810)$(14,998)
Other comprehensive income (loss), net of tax
Change in unrealized gain (loss) on cashflow hedges84 (527)137 592 
Total other comprehensive income (loss), net of tax84 (527)137 592 
Total comprehensive loss
$(68,895)$(84,188)$(23,673)$(14,406)


Exhibit 99.1
Share-based compensation costs included above:
U.S. dollars in thousands
Year Ended
December 31,
Three Months Ended
December 31,
2021202220212022
Cost of revenues$211 $599 $90 $136 
Research and development4,058 5,287 1,143 1,193 
Sales and marketing3,450 5,995 1,146 1,087 
General and administrative3,452 5,106 936 1,156 
Total$11,171 $16,987 $3,315 $3,572 


Exhibit 99.1
Similarweb Ltd.
Consolidated Statements of Cash Flows
U.S. dollars in thousands


Year Ended
December 31,
Three Months Ended
December 31,
2021202220212022
Cash flows from operating activities:
Net loss$(68,979)$(83,661)$(23,810)$(14,998)
Adjustments to reconcile net loss to net cash used in operating activities:
  Depreciation and amortization3,167 10,584 1,539 2,472 
  Finance expense (income)45 1,112 249 (307)
  Unrealized gain from hedging future transactions(23)(20)(5)(493)
  Share-based compensation11,171 16,987 3,315 3,572 
  Gain on sale of equipment— (142)— (10)
  Provision for accrued interest on Credit Facility(53)— — — 
Changes in operating assets and liabilities:
  Change in operating lease right-of-use assets and liabilities, net— 5,744 — 475 
  Increase in accounts receivable, net(5,132)(6,882)(5,986)(13,080)
  (Increase) decrease in deferred contract costs(6,127)(459)(2,070)1,670 
  (Increase) decrease in other current assets(5,556)1,342 (2,844)456 
  (Increase) decrease in other non-current assets(412)372 (483)503 
  Increase (decrease) in accounts payable6,631 (4,284)1,794 (1,444)
  Increase in deferred revenue24,384 15,055 12,139 9,622 
  Decrease in deferred rent(410)— (75)— 
  Increase (decrease) in other non-current liabilities475 (1,497)(153)(936)
  Increase (decrease) in other liabilities and accrued expenses13,194 (316)6,021 238 
Net cash used in operating activities(27,625)(46,065)(10,369)(12,260)
Cash flows from investing activities:
Purchase of property and equipment, net(2,311)(28,257)(896)(1,932)
Capitalized internal-use software costs(502)(2,919)(274)(424)
(Increase) decrease in restricted deposits(10,020)1,660 (9,758)507 
Decrease in short-term investments30,000 — — — 
Payment for business combinations, net of cash acquired(9,507)(3,787)(9,007)— 
Cash received in relation to business combinations— 294 — — 
Purchase of intangible assets(300)— — — 
Net cash provided by (used in) investing activities7,360 (33,009)(19,935)(1,849)
Cash flows from financing activities:
Proceeds from exercise of stock options1,222 2,034 492 130 


Exhibit 99.1
Proceeds from employee share purchase plan— 2,083 — 849 
Borrowings under Credit Facility30,000 25,000 — — 
Repayment of Credit Facility(56,800)— — — 
Repayment of borrowings assumed in business combinations(112)— (112)— 
Proceeds from initial public offering, net of underwriting fees, commissions and other issuance costs150,936 — — — 
Net cash provided by financing activities125,246 29,117 380 979 
Effect of exchange rates on cash and cash equivalents(45)(1,112)(249)307 
Net increase (decrease) in cash and cash equivalents104,936 (51,069)(30,173)(12,823)
Cash and cash equivalents, beginning of period23,943 128,879 159,052 90,633 
Cash and cash equivalents, end of period$128,879 $77,810 $128,879 $77,810 
Supplemental disclosure of cash flow information:
Interest paid (received), net$531 $(18)$$(2)
Taxes paid$468 $485 $$68 
Supplemental disclosure of non-cash financing activities:
Initial public offering costs incurred during the period included in accounts payable and accrued expenses$270 $(120)$— $(120)
Additions to operating lease right-of-use assets and liabilities$— $9,485 $— $50 
Deferred costs of property and equipment incurred during the period included in accounts payable$— $116 $— $(654)
Schedule A : Business combinations
Working capital (deficit), net (excluding cash and cash equivalents)$(8,865)$(657)
Cash refund to be received resulting from adjustment to working capital— 193 
Property, plant and equipment1343
Goodwill and other intangible assets20,374 4,361 
Deferred taxes, net(2,015)(153)
$9,507 $3,787 



Exhibit 99.1
Reconciliation of Non-GAAP Financial Measures to the Most Directly Comparable GAAP Financial Measures


Reconciliation of GAAP gross profit to non-GAAP gross profit

Year Ended
December 31,
Three Months Ended
December 31,
2021202220212022
(In thousands)(In thousands)
GAAP gross profit$105,916 $139,960 $29,460 $38,920 
Add:
Share-based compensation expenses211 599 90 136 
Retention payments related to business combinations— 1,785 — 129 
Amortization of intangible assets related to business combinations608 4,487 608 1,168 
Non-recurring expenses related to termination of lease agreement and others— 35 — — 
Non-GAAP gross profit$106,735 $146,866 $30,158 $40,353 
Non-GAAP gross margin78 %76 %75 %79 %

























Exhibit 99.1
Reconciliation of Loss from operations (GAAP) to Non-GAAP operating loss
Year Ended
December 31,
Three Months Ended
December 31,
2021202220212022
(In thousands)(In thousands)
Loss from operations$(66,107)$(87,856)$(22,903)$(14,594)
Add:
Share-based compensation expenses11,171 16,987 3,315 3,572 
Retention payments related to business combinations1,103 2,342 289 351 
Amortization of intangible assets related to business combinations608 4,573 608 1,202 
Adjustment of fair value of contingent consideration related to business combinations— (884)— (1,628)
Non-recurring expenses related to termination of lease agreement and others315 1,174 315 197 
Non-recurring fees related to initial public offering1,214  — — 
Capital gain related to sale of operating equipment (127) — 
Non-GAAP operating loss$(51,696)$(63,791)$(18,376)$(10,900)
Non-GAAP operating margin(38)%(33)%(46)%(21)%



Exhibit 99.1
Reconciliation of GAAP operating expenses to non-GAAP operating expenses
Year Ended
December 31,
Three Months Ended
December 31,
2021202220212022
(In thousands)(In thousands)
GAAP research and development$44,378 $59,904 $14,278 $13,977 
Less:
Share-based compensation expenses4,058 5,287 1,143 1,193 
Retention payments related to business combinations1,103 — 289 — 
Non-recurring expenses related to termination of lease agreement and others— 87 — — 
Non-GAAP research and development$39,217 $54,530 $12,846 $12,784 
Non-GAAP research and development margin28 %28 %32 %25 %
GAAP sales and marketing$93,844 $122,635 $27,982 $30,096 
Less:
Share-based compensation expenses3,450 5,995 1,146 1,087 
Retention payments related to business combinations— 557 — 222 
Amortization of intangible assets related to business combinations— 86 — 34 
Non-recurring expenses related to termination of lease agreement and others315 996 315 197 
Non-GAAP sales and marketing$90,079 $115,001 $26,521 $28,556 
Non-GAAP sales and marketing margin65 %60 %66 %56 %
GAAP general and administrative$33,801 $45,277 $10,103 $9,441 
Less:
Share-based compensation expenses3,452 5,106 936 1,156 
Adjustment of fair value of contingent consideration related to business combinations— (884)— (1,628)
Non-recurring fees related to initial public offering1,214 — — — 
Non-recurring expenses related to termination of lease agreement and others— 56 — — 
Capital gain related to sale of operating equipment— (127)— — 
Non-GAAP general and administrative$29,135 $41,126 $9,167 $9,913 
Non-GAAP general and administrative margin21 %21 %23 %19 %



Exhibit 99.1
Reconciliation of Net cash used in operating activities (GAAP) to Free cash flow and Normalized free cash flow
Year Ended
December 31,
Three Months Ended
December 31,
2021202220212022
(In thousands)(In thousands)
Net cash used in operating activities$(27,625)$(46,065)$(10,369)$(12,260)
Purchases of property and equipment, net(2,311)(28,257)(896)(1,932)
Capitalized internal use software costs(502)(2,919)(274)(424)
Free cash flow$(30,438)$(77,241)$(11,539)$(14,616)
Cash payments related to the new headquarters— 27,221 — 1,781 
Cash received in connection with purchases of property and equipment— (12,124)— (932)
Deferred payments in relation to business combinations— 413 — — 
Normalized free cash flow$(30,438)$(61,731)$(11,539)$(13,767)