February 13, 2020

Gregory S. Bentley
Chairman, Chief Executive Officer and President
Bentley Systems, Incorporated
685 Stockton Drive
Exton, PA 19341

       Re: Bentley Systems, Incorporated
           Draft Registration Statement on Form S-1
           Submitted January 10, 2020
           CIK No. 0001031308

Dear Mr. Bentley:

       We have reviewed your draft registration statement and have the
following comments. In
some of our comments, we may ask you to provide us with information so we may
better
understand your disclosure.

       Please respond to this letter by providing the requested information and
either submitting
an amended draft registration statement or publicly filing your registration
statement on
EDGAR. If you do not believe our comments apply to your facts and circumstances
or do not
believe an amendment is appropriate, please tell us why in your response.

      After reviewing the information you provide in response to these comments
and your
amended draft registration statement or filed registration statement, we may
have additional
comments.

Draft Registration Statement on Form S-1

Prospectus Summary, page 1

1.     Please revise to describe how you define "accounts" and confirm that you
will include
       comparable accounts data for each reported period when you update to
include fiscal 2019
       financial statements.
Risk Factors, page 17

2.     We note that the interest rate elections for your credit facility are
tied, in part, to LIBOR.
       In light of the expected discontinuation of LIBOR and the inability of
the company to
       make an Euro-currency election at such time under the terms of your
credit facility,
       consider including a risk factor if the discontinuation of LIBOR could
affect your liquidity
 Gregory S. Bentley
FirstName LastNameGregory S. Bentley
Bentley Systems, Incorporated
Comapany NameBentley Systems, Incorporated
February 13, 2020
Page 2
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FirstName LastName
         and results operations.
The results of the United Kingdom's referendum on withdrawal from the European
Union...,
page 23

3.       We note your disclosure that the decision by the United Kingdom to
exit from the
         European Union could have adverse practical or operational
implications on your
         business. Expand this discussion to disclose what steps, if any,
management is preparing
         to take to mitigate and manage the risks posed to your business by
Brexit (e.g., no
         agreements on data migration between the U.K. and the European Union).
Our amended and restated certificate of incorporation provides that the Court
of Chancery of the
State of Delaware..., page 50

4.       Your disclosure indicates that your certificate of incorporation has
an exclusive forum
         provision but that no provision in your bylaws or certificate of
incorporation precludes
         stockholders from bringing claims under the Securities Act or the
Exchange Act in state or
         federal court. Please clarify to state, if true, that the provision
does not apply to claims
         brought under the Securities Act or Exchange Act. Please ensure that
the exclusive forum
         provision in your certificate of incorporation states this clearly.
Selected Consolidated Financial Data
Non-GAAP Financial Measures, page 61

5.       Your discussion and analysis of your non-GAAP measures "adjusted
EBITDA" and
         "adjusted net income" should not be given greater prominence than your
GAAP results of
         operations discussion. Please revise. Refer to Item 10(e)(1)(i)(A) of
Regulation S-K
         and Question 102.10 of our Compliance and Disclosure Interpretations
of Non-GAAP
         Measures.
Management's Discussion and Analysis of Financial Condition and Results of
Operations
Key Business Metrics, page 73

6.       You state that in order to enhance comparability during your
transition to ASC 606, your
         key business metrics are calculated assuming revenue was recognized
pursuant to ASC
         605 for all periods. Considering you also present revenue as if ASC
606 was adopted
         using the full retrospective method, it appears that you have the
information necessary to
         calculate your metrics assuming revenue was recognized pursuant to ASC
606 for all
         periods. Therefore, tell us whether you considered also presenting
your metrics on an
         ASC 606 basis to allow for future comparability. At a minimum, to the
extent that the
         adoption of ASC 606 resulted in differing trends in these measures,
please revise to
         include a discussion of such measures under current GAAP.
7.       We note that ARR includes the annualized value of revenue recognized
during the last
         three months for your consumption-based software. Please revise to
explain how usage in
         a given period is indicative of recurring revenue on an annualized
basis. Tell us what
 Gregory S. Bentley
Bentley Systems, Incorporated
February 13, 2020
Page 3
         percentage of your revenues are derived from consumption-based
arrangements for each
         period presented. Also, please quantify the impact of acquisitions on
your ARR growth
         rate for each period presented.
8.       Please revise your definition of recurring revenues dollar-based net
retention rate to
         clarify what you mean by "existing accounts."
Comparison of the Nine Months Ended September 30, 2018 and 2019, page 81

9.       Your results of operations discussion includes a comparison of revenue
as if ASC 606 was
         not adopted during fiscal 2019. Please note that management's
discussion and analysis
         should be based on your GAAP results of operations. While you may
supplement
         this with a discussion assuming revenue was recognized under ASC 605
in fiscal 2019,
         such discussion should not replace or be given greater prominence than
your GAAP
         discussion. Please revise. Also, please clarify your current
disclosures regarding the
         change in EMEA revenue. In this regard, you state such revenues were
negatively
         impacted by the change in the pattern of revenue recognition from upon
delivery in 2018
         to ratable in 2019 under 605. If you are comparing revenue as if ASC
605 was applied
         during both periods, it is unclear why the pattern of recognition
would have changed.
10.      In your discussion of subscription revenue and revenues from the
Americas, you attribute
         your organic growth to the E365 program and updated offerings for your
ProjectWise and
         civil design products. Please revise to further clarify the extent to
which such growth was
         attributable to changes in price and/or volume. Also clarify how new
versus existing
         customers contributed to such growth. Refer to Item 303(a)(3)(iii) of
Regulation S-K.
11.      Where a material change in a line item is attributed to two or more
factors, including any
         offsetting factors, the contribution of each factor should be
described in quantified terms.
         For example, you state that revenue from EMEA was positively impacted
by acquisitions,
         which was offset by a decrease in license revenue due to a change in
the pattern of
         revenue recognition. You also attribute the increase in APAC revenues
to improvements
         in organic growth and to a lesser extent the impact from acquisitions.
Please revise
         accordingly. Refer to Section III.D of SEC Release No. 33-6835.
Significant Judgments and Estimates
Fair Value of Common Stock, page 97

12.    Please provide us with a breakdown of all equity-based awards granted
since your most
       recent balance sheet date. To the extent there were any significant
fluctuations in the fair
       value of your underlying common stock from period-to-period, please
describe for us the
       factors that contributed to these fluctuations, including any
intervening events within the
       company or changes in your valuation assumptions or methodology. Also,
continue to
FirstName LastNameGregory S. Bentley
       provide us with a breakdown of all equity-based awards granted
subsequent to year end
Comapany NameBentleyvalue of the underlying common stock used to determine the
fair value
       including the fair Systems, Incorporated
       of such awards.
February 13, 2020 Page 3
FirstName LastName
 Gregory S. Bentley
FirstName LastNameGregory S. Bentley
Bentley Systems, Incorporated
Comapany NameBentley Systems, Incorporated
February 13, 2020
Page 4
February 13, 2020 Page 4
FirstName LastName
Business, page 101

13.      You disclose here and in the prospectus summary that you have
relationships with the
         largest global infrastructure engineering firms, including 454 of the
2019 Engineering
         News Record (615) Top Design firms and 319 of the 2019 Bentley
Infrastructure 500 Top
         Owners. Please provide further context regarding the nature of these
relationships and
         explain whether these customers together represent a material portion
of your revenue or
         are among the 88 accounts that have contributed over $1 million to
your revenue.
Executive and Director Compensation
Employment Agreements, page 137

14.      Please disclose the material terms of the intellectual property
assignment agreements that
         you have with your executive officers. Please identify the executive
officers who are
         parties to these agreements.
Certain Relationships and Related Party Transactions
Our Relationship with Siemens AG, page 140

15.      Please file your strategic collaboration agreement with Siemens, a
principal shareholder of
         the company, or advise why you believe this agreement is not required
to be filed. Refer
         to Item 601(b)(10)(ii)(A) of Regulation S-K.
Second Amended and Restated Stockholders Agreement, page 142

16.      You disclose that upon the effectiveness of this registration
statement, the provisions of
         the stockholders agreement will terminate. You also disclose that upon
the effectiveness
         of this registration statement, you will amend and restate your
stockholders agreement to
         eliminate certain provisions. Currently, it is unclear whether you
intend to terminate the
         entire stockholders agreement upon effectiveness of this registration
statement or whether
         you intend to only eliminate certain provisions. Please revise your
disclosure to clarify
         this. To the extent, you will only eliminate certain provisions,
please: (i) revise to clarify
         which provisions will remain in effect; (ii) disclose the material
terms of the stockholders
         agreement in the prospectus summary or provide a cross-reference; and
(iii) file a form of
         the amended and restated stockholders agreement that will be in effect
upon the
         effectiveness of this registration statement.
Plan of Distribution, page 160

17.      Please clarify how the Current Reference Price will be calculated and
disseminated under
         the Nasdaq Listing Rules. Clarify that the underlying purpose of the
Current Reference
         Price is to effectively match anticipated supply with demand. For
example, under clause
         (iii) of the definition, you state that, if certain conditions exist,
the Current Reference Price
         may be set at "the entered price at which [the] Class B common stock
will remain
         unexecuted in the cross." It is not clear how this scenario would
match supply with
 Gregory S. Bentley
FirstName LastNameGregory S. Bentley
Bentley Systems, Incorporated
Comapany NameBentley Systems, Incorporated
February 13, 2020
February 13, 2020 Page 5
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FirstName LastName
         demand. Consider including an example or examples of how the Current
Reference Price
         will be calculated to aid potential investors' understanding of this
process.
18.      You disclose that you have engaged Goldman Sachs and BofA Securities
as your financial
         advisors to advise and assist with respect to certain matters relating
to your listing. You
         also note that these financial advisors will act as registered and
active market makers.
         Please revise to summarize the responsibilities Goldman Sachs and BofA
Securities have
         as your financial advisors and, separately, as registered and active
market makers,
         including a discussion of the timing of these dual responsibilities.
19.      Clarify what factors your financial advisor will consider before
notifying the Nasdaq that
         the company's Class B common stock is ready to trade and the Current
Reference Price is
         calculated.
20.      Clarify what factors your financial advisor will consider in
determining whether there has
         been "sufficient price discovery" and "a reasonable amount of volume
crosses on the
         opening trade."
Where You Can Find More Information, page 162

21.      You disclose that "[s]tatements contained in this prospectus
concerning the contents of
         any contract or any other document are not necessarily complete" and
that each statement
         in the prospectus relating to a contract or document filed as an
exhibit is "qualified in all
         respects by the filed exhibit." As you are responsible for the
accuracy and completeness
         of the information in the registration statement, this type of
disclaimer is not appropriate.
         While disclosure may direct investors to read the entirety of the
applicable agreement for
         a more complete discussion, the description of the material terms of
the applicable
         agreement must be complete. Please revise to remove language that
disclaims the
         completeness of your prospectus disclosure.
Note 3: Revenue from Contracts with Customers
Nature of Products and Services, page F-19

22.      Please revise to describe the performance obligations included in your
ELS arrangements
         and specify when each obligation is satisfied. Refer to ASC
606-10-50-12. With regards
         to your E365 subscriptions, please explain further the terms of these
arrangements and
         specifically address how usage is defined.
23.      In your discussion regarding the impact of adopting ASC 606, you state
that revenue from
         term-based software licenses is recognized upfront upon delivery;
however, your
         disclosures on page 70 appear to indicate that revenue for your term
license subscriptions
         is recognized annually, quarterly or monthly. Please describe further
the terms of you
         annual term licenses, clarify the performance obligations included in
such arrangements
         and specify the timing of revenue recognition for each. With regards
to your quarterly
         term licenses, please clarify whether these arrangements include a
license component.
         Also, tell us how usage is determined, when revenue is recognized for
license usage and
 Gregory S. Bentley
Bentley Systems, Incorporated
February 13, 2020
Page 6
FirstName LastNameGregory S. Bentley
Comapany NameBentley Systems, Incorporated usage at the end of each reporting
period to the
       specifically address whether you estimate
       extent actual information is not yet available. Refer to ASC
606-10-55-65.
February 13, 2020 Page 6
FirstName LastName
 Gregory S. Bentley
FirstName LastNameGregory S. Bentley
Bentley Systems, Incorporated
Comapany NameBentley Systems, Incorporated
February 13, 2020
Page 7
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FirstName LastName
Significant Judgments and Estimates, page F-21

24.      Please tell us when revenue is recognized for the material rights
included in your SELECT
         subscription arrangements. Clarify when such rights can be exercised,
when they
         expire, and whether additional rights are recognized each time the
subscription is
         renewed.
Disaggregation of Revenues, page F-22

25.      Please disclose your basis for attributing revenues from external
customer to individual
         countries. Also, to the extent that revenue from any one country is
material, separately
         disclose the revenue related to such country. Refer to ASC
280-10-50-41(a).
Note 13: Equity Awards and Instruments
Restricted Stock, page F-34

26.      Please revise to describe the performance criteria for both your
performance-based
         restricted stock awards and restricted stock units. Also, disclose the
number of restricted
         stock units outstanding at each period end. Refer to ASC 718-10-50-1.
Note 14: Income Taxes, page F-37

27.      Please tell us the authoritative accounting literature you relied upon
in recording the tax
         benefit associated with the intercompany sales of certain intangible
assets between your
         foreign subsidiaries and specifically address your consideration of
ASC 740-10-25-3(e).
         Alternatively, to the extent you have early adopted ASU 2016-16,
revise to include the
         transition disclosures required by ASC 740-10-65-5(d).
General

28.      Please be advised that the Division of Trading and Markets has joined
us in our review
         and may contact you with questions about your offering.
        You may contact David Edgar, Staff Accountant, at (202) 551-3459 or
Kathleen Collins,
Accounting Branch Chief, at (202) 551-3499 if you have questions regarding
comments on the
financial statements and related matters. Please contact Mitchell Austin, Staff
Attorney, at (202)
551-3574 or Jan Woo, Legal Branch Chief, at (202) 551-3453 with any other
questions.



                                                               Sincerely,

                                                               Division of
Corporation Finance
                                                               Office of
Technology
cc:      Richard Fenyes, Esq.