<SUBMISSION>
<ACCESSION-NUMBER>0001047469-03-004564
<TYPE>SC TO-I/A
<PUBLIC-DOCUMENT-COUNT>1
<FILING-DATE>20030210
<SUBJECT-COMPANY>
<COMPANY-DATA>
<CONFORMED-NAME>TUCOWS INC /PA/
<CIK>0000909494
<ASSIGNED-SIC>7374
<IRS-NUMBER>232707366
<STATE-OF-INCORPORATION>PA
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>SC TO-I/A
<ACT>34
<FILE-NUMBER>005-49487
<FILM-NUMBER>03547700
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>96 MOWAT AVENUE
<CITY>TORONTO
<STATE>A6
<ZIP>M6K 3M1
<PHONE>4165350123
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>96 MOWAT AVENUE
<CITY>TORONTO
<STATE>A6
<ZIP>M6K 3M1
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>INFONAUTICS CORP
<DATE-CHANGED>19960315
</FORMER-COMPANY>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>INFONAUTICS INC
<DATE-CHANGED>19960426
</FORMER-COMPANY>
</SUBJECT-COMPANY>
<FILED-BY>
<COMPANY-DATA>
<CONFORMED-NAME>TUCOWS INC /PA/
<CIK>0000909494
<ASSIGNED-SIC>7374
<IRS-NUMBER>232707366
<STATE-OF-INCORPORATION>PA
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>SC TO-I/A
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>96 MOWAT AVENUE
<CITY>TORONTO
<STATE>A6
<ZIP>M6K 3M1
<PHONE>4165350123
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>96 MOWAT AVENUE
<CITY>TORONTO
<STATE>A6
<ZIP>M6K 3M1
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>INFONAUTICS CORP
<DATE-CHANGED>19960315
</FORMER-COMPANY>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>INFONAUTICS INC
<DATE-CHANGED>19960426
</FORMER-COMPANY>
</FILED-BY>
<DOCUMENT>
<TYPE>SC TO-I/A
<SEQUENCE>1
<FILENAME>a2102898zscto-ia.htm
<DESCRIPTION>TO-I/A
<TEXT>
<HTML>
<HEAD>

</HEAD>
<BODY BGCOLOR="#FFFFFF" LINK=BLUE  VLINK=PURPLE>
<BR>
<FONT SIZE=3 ><A HREF="#03PHI1042_1">QuickLinks</A></FONT>
<font size=3> -- Click here to rapidly navigate through this document</font>
<P ALIGN="CENTER"><FONT SIZE=2><B>As filed with the Securities and Exchange Commission on February&nbsp;10, 2003  </B></FONT></P>

<HR NOSHADE>
<HR NOSHADE>
<P ALIGN="CENTER"><FONT SIZE=5><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>  </B></FONT><FONT SIZE=2><B>WASHINGTON, D.C. 20549  </B></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B> SCHEDULE TO  </B></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B> TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) OR 13(e)(1)<BR>
OF THE SECURITIES EXCHANGE ACT OF 1934<BR>
(Amendment No.&nbsp;2)  </B></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=5><B>Tucows&nbsp;Inc.<BR>  </B></FONT><FONT SIZE=2>(Name of Subject Company (Issuer)) </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=4><B>Tucows&nbsp;Inc.<BR>  </B></FONT><FONT SIZE=2>(Name of Filing Person (Offeror)) </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B>Certain Options to Purchase Common Stock, No Par Value Per Share,<BR>
Having an Exercise Price of $0.91 Per Share or More<BR>  </B></FONT><FONT SIZE=2>(Title of Class of Securities) </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B>898697-10-7<BR>  </B></FONT><FONT SIZE=2>(CUSIP Number of Class of Securities)<BR>
(Underlying Common Stock) </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B>Elliot Noss<BR>
President and Chief Executive Officer<BR>
Tucows&nbsp;Inc.<BR>
96 Mowat Avenue<BR>
Toronto, Ontario M6K&nbsp;3M1<BR>
Canada<BR>
Telephone: (416)&nbsp;535-0123  </B></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2>(Name, Address and Telephone Number of Person Authorized to<BR>
Receive Notices and Communications on Behalf of Filing Person) </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B> Copy to:  </B></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B> Alan S. Pretter, Esq.<BR>
Morgan, Lewis&nbsp;&amp; Bockius LLP<BR>
One Oxford Centre, 32nd Floor<BR>
Pittsburgh, PA 15219<BR>
(412)&nbsp;560-3300  </B></FONT></P>

<HR NOSHADE ALIGN="CENTER" WIDTH="120">
<P ALIGN="CENTER"><FONT SIZE=2><B> Calculation of Filing Fee  </B></FONT></P>

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<TR VALIGN="TOP">
<TD COLSPAN=3 ALIGN="CENTER"><HR NOSHADE></TD>
</TR>
<TR VALIGN="BOTTOM">
<TH WIDTH="49%" ALIGN="CENTER"><FONT SIZE=1><B>Transaction Valuation*</B></FONT><BR></TH>
<TH WIDTH="2%"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH WIDTH="49%" ALIGN="CENTER"><FONT SIZE=1><B>Amount of Filing Fee**</B></FONT><BR></TH>
</TR>
<TR VALIGN="TOP">
<TD COLSPAN=3 ALIGN="CENTER"><HR NOSHADE></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="49%" ALIGN="CENTER"><FONT SIZE=1><B>$2,792,888</B></FONT></TD>
<TD WIDTH="2%"><FONT SIZE=1>&nbsp;</FONT></TD>
<TD WIDTH="49%" ALIGN="CENTER"><FONT SIZE=1><B>$558.58</B></FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD COLSPAN=3 ALIGN="CENTER"><HR NOSHADE></TD>
</TR>
</TABLE>
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<DL compact>
<DT style='margin-bottom:-11pt;'><FONT SIZE=2>*</FONT></DT><DD><FONT SIZE=2>Calculated
solely for purposes of determining the filing fee. This amount assumes that options to purchase 5,143,440 shares of common stock of Tucows&nbsp;Inc. having an aggregate
value of $2,792,888 as of January&nbsp;7, 2003 will be exchanged in this offer. The aggregate value of such options was calculated using the Black-Scholes option pricing model. The amount of the
filing fee, calculated in accordance with Rule&nbsp;0-11 of the Securities Exchange Act of 1934, as amended, equals 1/50th of one percent of the value of the transaction. </FONT></DD><DT style='margin-bottom:-11pt;'><FONT SIZE=2>**</FONT></DT><DD><FONT SIZE=2>Previously
Paid.
<BR><BR></FONT></DD><DT style='margin-bottom:-11pt;'><FONT SIZE=2><FONT FACE="WINGDINGS">&#111;</FONT></FONT></DT><DD><FONT SIZE=2>Check
box if any part of the fee is offset as provided by Rule&nbsp;0-11(a)(2) and identify the filing with which the
offsetting fee was previously paid. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing. </FONT></DD></DL>
<BR>

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<TR VALIGN="BOTTOM">
<TD WIDTH="49%" VALIGN="TOP"><FONT SIZE=2>Amount Previously Paid: Not applicable.</FONT></TD>
<TD WIDTH="2%" VALIGN="TOP"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="49%" VALIGN="TOP"><FONT SIZE=2>Filing party: Not applicable.</FONT></TD>
</TR>
<TR VALIGN="BOTTOM">
<TD WIDTH="49%" VALIGN="TOP"><FONT SIZE=2>Form or Registration No.: Not applicable.</FONT></TD>
<TD WIDTH="2%" VALIGN="TOP"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="49%" VALIGN="TOP"><FONT SIZE=2>Date filed: Not applicable.</FONT></TD>
</TR>
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<DL compact>
<DT style='margin-bottom:-11pt;'><FONT SIZE=2><FONT FACE="WINGDINGS">&#111;</FONT></FONT></DT><DD><FONT SIZE=2>Check
the box if the filing relates solely to preliminary communications made before the commencement of a tender offer. </FONT></DD></DL>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Check
the appropriate boxes below to designate any transactions to which the statement relates: </FONT></P>

<UL>
<DL compact>
<DT style='margin-bottom:-11pt;'><FONT SIZE=2><FONT FACE="WINGDINGS">&#111;</FONT></FONT></DT><DD><FONT SIZE=2>third
party tender offer subject to Rule&nbsp;14d-1.
<BR></FONT></DD><DT style='margin-bottom:-11pt;'><FONT SIZE=2><FONT FACE="WINGDINGS">&#253;</FONT></FONT></DT><DD><FONT SIZE=2>issuer
tender offer subject to Rule&nbsp;13e-4.
<BR></FONT></DD><DT style='margin-bottom:-11pt;'><FONT SIZE=2><FONT FACE="WINGDINGS">&#111;</FONT></FONT></DT><DD><FONT SIZE=2>going-private
transaction subject to Rule&nbsp;13e-3.
<BR></FONT></DD><DT style='margin-bottom:-11pt;'><FONT SIZE=2><FONT FACE="WINGDINGS">&#111;</FONT></FONT></DT><DD><FONT SIZE=2>amendment
to Schedule&nbsp;13D under Rule&nbsp;13d-2. </FONT></DD></DL>
</UL>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Check
the following box if the filing is a final amendment reporting the results of the tender offer.&nbsp;&nbsp;&nbsp;&nbsp;<FONT FACE="WINGDINGS">&#253;</FONT> </FONT></P>

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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="page_da1042_1_2"> </A> </FONT></P>

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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="da1042_introduction"> </A>
<A NAME="toc_da1042_1"> </A>
<BR></FONT><FONT SIZE=2><B>INTRODUCTION    <BR>  </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This Amendment No.&nbsp;2 amends and supplements the Tender Offer Statement on Schedule TO filed with the Securities and Exchange Commission on
January&nbsp;7, 2003 (the "Schedule TO") relating to the offer by Tucows&nbsp;Inc. ("Tucows") to exchange all outstanding options to purchase shares of Tucows common stock held by current
employees of Tucows and its subsidiaries under the Tucows&nbsp;Inc. Amended and Restated 1996 Equity Compensation Plan having an exercise price of $0.91 or more per share for new options to purchase
shares of Tucows common stock upon the terms and subject to the conditions set forth in the Offer to Exchange, dated January&nbsp;7, 2003 (as amended, the "Offer to Exchange"), and in the related
Election Form (as amended, the "Election Form")(the Election Form and the Offer to Exchange, as amended, are together referred to as the "Offer"). </FONT></P>

<P><FONT SIZE=2><A
NAME="da1042_item_4._terms_of_the_transaction."> </A>
<A NAME="toc_da1042_2"> </A>
<BR></FONT><FONT SIZE=2><B>Item 4.&nbsp;&nbsp;&nbsp;&nbsp;Terms of the Transaction.    <BR>  </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Offer expired at 5.00&nbsp;p.m., Eastern Time, on February&nbsp;5, 2003. Pursuant to the Offer, Tucows has accepted for exchange options to purchase an
aggregate of 5,103,391 shares of common stock. Subject to the terms and conditions of the Offer to Exchange and Election Form, Tucows will grant new options to purchase shares of common stock for the
options elected for exchange. </FONT></P>

<P><FONT SIZE=2><A
NAME="da1042_item_12._exhibits."> </A>
<A NAME="toc_da1042_3"> </A>
<BR></FONT><FONT SIZE=2><B>Item 12.&nbsp;&nbsp;&nbsp;&nbsp;Exhibits.    <BR>  </B></FONT></P>

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<TD WIDTH="11%"><FONT SIZE=2>(a)(1)(A)</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="86%"><FONT SIZE=2>Offer to Exchange, dated January 7, 2003, as amended.**</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="11%"><FONT SIZE=2>(a)(1)(B)</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="86%"><FONT SIZE=2>Form of Election to Exchange, as amended.**</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="11%"><FONT SIZE=2>(a)(1)(C)</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="86%"><FONT SIZE=2>Form of Letter to Eligible Option Holders.*</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="11%"><FONT SIZE=2>(a)(1)(D)</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="86%"><FONT SIZE=2>Memorandum to Eligible Employees, dated January 23, 2003.**</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="11%"><FONT SIZE=2>(a)(1)(E)</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="86%"><FONT SIZE=2>Form of Confirmation to Eligible Employees Electing to Participate in the Offer to Exchange.**</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="11%"><FONT SIZE=2>(b)</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="86%"><FONT SIZE=2>Not Applicable.</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="11%"><FONT SIZE=2>(d)(1)</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="86%"><FONT SIZE=2>Tucows Inc. Amended and Restated 1996 Equity Compensation Plan.*</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="11%"><FONT SIZE=2>(d)(2)</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="86%"><FONT SIZE=2>Form of Stock Option Agreement pursuant to Tucows Inc. Amended and Restated 1996 Equity Compensation Plan.*</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="11%"><FONT SIZE=2>(g)</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="86%"><FONT SIZE=2>Not Applicable.</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="11%"><FONT SIZE=2>(h)</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="86%"><FONT SIZE=2>Not Applicable.</FONT></TD>
</TR>
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<DL compact>
<DT style='margin-bottom:-11pt;'><FONT SIZE=2>*</FONT></DT><DD><FONT SIZE=2>Previously
filed as an exhibit to Tucows' Schedule TO (File No.&nbsp;5-49487) filed with the Securities and Exchange Commission on January&nbsp;7, 2003.
<BR><BR></FONT></DD><DT style='margin-bottom:-11pt;'><FONT SIZE=2>**</FONT></DT><DD><FONT SIZE=2>Previously
filed as an exhibit to Amendment No.&nbsp;1 to Tucows' Schedule TO (File No.&nbsp;5-49487) filed with the Securities and Exchange Commission on
January&nbsp;23, 2003. </FONT></DD></DL>
<P ALIGN="CENTER"><FONT SIZE=2>2</FONT></P>

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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="page_jc1042_1_3"> </A> </FONT></P>

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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="jc1042_signature"> </A>
<A NAME="toc_jc1042_1"> </A>
<BR></FONT><FONT SIZE=2><B>SIGNATURE    <BR>  </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;After due inquiry and to the best of my knowledge and belief, I certify that the information set forth in this Schedule TO is true, complete and correct. </FONT></P>

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<TD WIDTH="40%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="60%"><FONT SIZE=2>TUCOWS&nbsp;INC.</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="40%"><FONT SIZE=2><BR>
&nbsp;</FONT></TD>
<TD WIDTH="60%"><FONT SIZE=2><BR>
/S/&nbsp;&nbsp;ELLIOT NOSS</FONT><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><HR NOSHADE><FONT SIZE=2> Elliot Noss<BR>
President and Chief Executive Officer</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="40%"><FONT SIZE=2><BR>
&nbsp;</FONT></TD>
<TD WIDTH="60%"><FONT SIZE=2><BR>
Dated: February&nbsp;10, 2003</FONT></TD>
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<P ALIGN="CENTER"><FONT SIZE=2>3</FONT></P>

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<BR>
<P><br><A NAME="03PHI1042_1">QuickLinks</A><br></P>
<!-- TOC_BEGIN -->
<FONT SIZE=2><A HREF="#toc_da1042_1">INTRODUCTION</A></FONT><BR>
<UL>
<FONT SIZE=2><A HREF="#toc_da1042_2">Item 4. Terms of the Transaction.</A></FONT><BR>
<FONT SIZE=2><A HREF="#toc_da1042_3">Item 12. Exhibits.</A></FONT><BR>
</UL>
<!-- TOC_BEGIN -->
<FONT SIZE=2><A HREF="#toc_jc1042_1">SIGNATURE</A></FONT><BR>
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