UNITED STATES
Securities and Exchange Commission

Washington,
D.C. 20549



Form 40-F/A

(Amendment No. 1)



☐ Registration Statement
Pursuant to Section 12 of the Securities Exchange Act of 1934

or

☒ Annual Report Pursuant to Section 13(a) or 15(d) of the Securities
Exchange Act of 1934



For the fiscal year ended December 31, 2023



Commission file number 001-36897



FirstService Corporation

(Exact name of Registrant as specified in its charter)



N/A

(Translation of Registrant’s
name into English (if applicable))



Ontario, Canada

(Province or other jurisdiction of incorporation or organization)



6500

(Primary Standard Industrial Classification Code Number (if applicable))



N/A

(I.R.S. Employer Identification Number (if applicable))



1255 Bay Street, Suite 600

Toronto, Ontario, Canada M5R 2A9

416-960-9566

(Address and telephone number of Registrant’s principal executive
offices)



Mr. Santino Ferrante, Ferrante & Associates

126 Prospect Street, Cambridge, MA 02139

617-868-5000

(Name, address (including zip code) and telephone number (including area
code) of agent for service in the United States)



Securities registered or to be registered pursuant to Section 12(b) of the
Act:



|Title of each class | Trading Symbol | Name of each exchange on which registered     
|------------------- | -------------- | ----------------------------------------------
|Common Shares       | FSV            | NASDAQ Stock Market
    Toronto Stock Exchange

Securities registered or to be registered pursuant to Section 12(g) of the
Act: None











Securities for which there is a reporting obligation pursuant to Section
15(d) of the Act: None



For annual reports, indicate by check mark the information filed with this
Form:



|☒ Annual information form |  | ☒ Audited annual financial statements
|------------------------- |  | -------------------------------------



Indicate the number of outstanding shares of each of the issuer’s classes of capital or
common stock as of the close of the period covered by the annual report:



44,682,427 Common Shares



Indicate by check mark whether the Registrant (1) has filed all reports required to be filed
by Section 13 or 15(d) of the Exchange Act during the preceding 12 months (or for such shorter period that the Registrant was required
to file such reports) and (2) has been subject to such filing requirements for the past 90 days.



|☒ Yes |  | ☐ No
|----- |  | ----



Indicate by check mark whether the registrant has submitted electronically every Interactive
Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months
(or for such shorter period that the Registrant was required to submit such files).



|☒ Yes |  | ☐ No
|----- |  | ----



Indicate by check mark whether the registrant is an emerging growth company as defined in Rule
12b-2 of the Exchange Act.



Emerging growth company ☐



If an emerging growth
company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not
to use the extended transition period for complying with any new or revised financial accounting standards† provided pursuant to
Section 13(a) of the Exchange Act. ☐



† The term “new or revised financial accounting
standard” refers to any update issued by the Financial Accounting Standards Board to its Accounting Standards Codification after
April 5, 2012.



Indicate by check mark whether the registrant has filed a report on and attestation to its management’s
assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C.
7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒



If securities are registered pursuant to Section 12(b)
of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of
an error to previously issued financial statements.☐



Indicate by check mark whether any of those error corrections
are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive
officers during the relevant recovery period pursuant to §240.10D-1(b).☐











EXPLANATORY NOTE



FirstService Corporation (the “Registrant”) is filing this
Amendment No. 1 (this “Amendment”) to its original Annual Report on Form 40-F for the year ended December 31, 2023, which
was filed with the U.S. Securities and Exchange Commission on February 22, 2024 (the “Original 2023 Annual Report” and together
with this Amendment, the “Annual Report”), in order to file Exhibit 97 to the Annual Report. In addition, as required by Rule
12b-15 of the U.S. Securities and Exchange Act of 1934 (the “Exchange Act”), a new certification by the Registrant’s
principal executive officer and principal financial officer is filed herewith as Exhibit 31 to this Amendment, pursuant to Rule 13a-14(a)
of the Exchange Act. Because no financial statements have been included in this Amendment, paragraphs 3, 4 and 5 of the certification
has been omitted. The Registrant is also not including new certifications under Section 1350 of Chapter 63 of Title 18 of the United States
Code (18 U.S.C. 1350) (Section 906 of the Sarbanes-Oxley Act of 2002), as no financial statements are being filed with this Amendment.



This Amendment consists of a cover page, this explanatory note, the signature
page, the exhibit index, Exhibit 31 and Exhibit 97. Other than expressly set forth herein, this Amendment does not, and does not purport
to, amend or restate any other information contained in the Original 2023 Annual Report nor does this Amendment reflect any events that
have occurred after the Original 2023 Annual Report was filed.



























SIGNATURE



Pursuant to the requirements of the Exchange Act, the Registrant certifies
that it meets all of the requirements for filing on Form 40-F and has duly caused this Amendment to the Annual Report to be signed on
its behalf by the undersigned, thereto duly authorized.



|Date: March 11, 2024 |  | FIRSTSERVICE CORPORATION
|-------------------- |  | ------------------------
|                     |  |                         
|                     |  |                         
|                     |  |                         



































EXHIBIT INDEX



|No.  | Document                                                                                                                                                                        
|---- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|     |                                                                                                                                                                                 
|1.   | Annual Information Form of the Registrant for the year ended December 31, 2023.*                                                                                                
|     |                                                                                                                                                                                 
|2.   | Audited consolidated financial statements of the Registrant as at December 31, 2023 and 2022 and for the years ended December 31, 2023 and 2022.*                               
|     |                                                                                                                                                                                 
|3.   | Management’s discussion and analysis of the Registrant for the year ended December 31, 2023.*                                                                                   
|     |                                                                                                                                                                                 
|23.  | Consent of PricewaterhouseCoopers LLP.*                                                                                                                                         
|     |                                                                                                                                                                                 
|31.  | Certifications of Chief Executive Officer and Chief Financial Officer pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934.†                          
|     |                                                                                                                                                                                 
|32.  | Certifications of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.*
|     |                                                                                                                                                                                 
|97.  | Compensation Recovery Policy of the Registrant.†                                                                                                                                
|     |                                                                                                                                                                                 
|101. | Interactive Data File.*                                                                                                                                                         
|     |                                                                                                                                                                                 
|104. | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).*                                                                                      



* Previously filed as an exhibit to the
Original 2023 Annual Report.

† Filed as an exhibit to this Amendment.