<PAGE>   1
        AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JANUARY 10, 2000
                                                  REGISTRATION NO. 333-_________
================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM S-8

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                                 E.PIPHANY, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

        DELAWARE           1900 SOUTH NORFOLK STREET,            77-0443392
(STATE OF INCORPORATION)          SUITE 310                   (I.R.S. EMPLOYER
                           SAN MATEO, CALIFORNIA 94403       IDENTIFICATION NO.)



   (ADDRESS, INCLUDING ZIP CODE, OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)

            RIGHTPOINT SOFTWARE, INC. (FORMERLY DATAMIND CORPORATION)
                             1996 STOCK OPTION PLAN
                            (FULL TITLE OF THE PLAN)



                                 ROGER S. SIBONI
                      PRESIDENT AND CHIEF EXECUTIVE OFFICER
                                 E.PIPHANY, INC.
                      1900 SOUTH NORFOLK STREET, SUITE 310
                           SAN MATEO, CALIFORNIA 94403
                                 (650) 356-3800
                      (NAME, ADDRESS, AND TELEPHONE NUMBER,
                   INCLUDING AREA CODE, OF AGENT FOR SERVICE)

                                    COPY TO:
                              AARON J. ALTER, ESQ.
                            N. ANTHONY JEFFRIES, ESQ.
                        WILSON SONSINI GOODRICH & ROSATI
                            PROFESSIONAL CORPORATION
                               650 PAGE MILL ROAD
                               PALO ALTO, CA 94304
                                 (650) 493-9300

                         CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>
==========================================================================================================================
                                                                          PROPOSED
                TITLE OF SECURITIES TO                    AMOUNT           MAXIMUM      PROPOSED MAXIMUM       AMOUNT OF
                    BE REGISTERED                         TO BE        OFFERING PRICE       AGGREGATE        REGISTRATION
                                                        REGISTERED(1)    PER SHARE(2)    OFFERING PRICE(2)        FEE
--------------------------------------------------------------------------------------------------------------------------
<S>                                                       <C>             <C>               <C>                 <C>
RightPoint Software, Inc. 1996 Stock Option Plan          477,710         $41.23            19,698,055          $5,201
==========================================================================================================================
</TABLE>

(1)   This Registration Statement shall also cover any additional shares of
      Common Stock which become issuable under the Plan being registered
      pursuant to this Registration Statement by reason of any stock dividend,
      stock split, recapitalization or other similar transaction effected
      without the receipt of consideration which results in an increase in the
      number of the Registrant's outstanding shares of Common Stock.

(2)   Computed in accordance with Rule 457(h) under the Securities Act of 1933,
      as amended (the "Securities Act"), solely for the purpose of calculating
      the registration fee. With respect to 477,710 shares subject to
      outstanding options to purchase Common Stock under the Plan, the proposed
      maximum offering price per share is equal to the weighted average exercise
      price of $41.23 per share pursuant to Rule 457(h) under the Securities
      Act.
<PAGE>   2

                                     PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

ITEM 3.  INCORPORATION OF DOCUMENTS BY REFERENCE

         There are hereby incorporated by reference into this Registration
Statement and into the Prospectuses relating to this Registration Statement
pursuant to Rule 428 the following documents and information previously filed
with the Securities and Exchange Commission (the "Commission"):

1.    The Registrant's prospectus filed pursuant to Rule 424(b) under the
      Securities Act relating to the Registrant's Registration Statement on Form
      S-1, as amended (SEC File No. 333-82799), on September 22, 1999.

2.    The Registrant's quarterly report filed pursuant to Section 13(a) or 15(d)
      of the Securities Exchange Act of 1934, as amended (the "Exchange Act")
      on Form 10-Q (SEC File No. 000-27183), on November 15, 1999 since the
      date of the document referred to in (1) above.

3.    The description of Registrant's Common Stock contained in Registrant's
      Registration Statement on Form 8-A filed with the Commission on August 30,
      1999.

      All documents filed by the Registrant pursuant to Sections 13(a), 13(c),
14 and 15(d) of the Exchange Act after the date hereof, and prior to the filing
of a post-effective amendment which indicates that all securities offered have
been sold or which registers all securities then remaining unsold, shall be
deemed to be incorporated by reference herein and to be part hereof from the
date of filing of such documents.

ITEM 4.  DESCRIPTION OF SECURITIES

         Not applicable.

ITEM 5.  INTERESTS OF NAMED EXPERTS AND COUNSEL

         Not applicable.

ITEM 6.  INDEMNIFICATION OF DIRECTORS AND OFFICERS

     Section 145 of the Delaware General Corporation Law permits a corporation
to include in its charter documents, and in agreements between the corporation
and its directors and officers, provisions expanding the scope of
indemnification beyond that specifically provided by the current law.

     Article VII of the Registrant's Restated Certificate of Incorporation
provides for the indemnification of directors to the fullest extent permissible
under Delaware law.

     Article VI of the Registrant's Bylaws provides for the indemnification of
officers, directors and third parties acting on behalf of the Registrant if
such person acted in good faith and in a manner reasonably believed to be in
and not opposed to the best interest of the Registrant, and, with respect to
any criminal action or proceeding, the indemnified party had no reason to
believe his or her conduct was unlawful.

     The Registrant has entered into indemnification agreements with its
directors and executive officers, in addition to indemnification provided for
in the Registrant's Bylaws, and intends to enter into indemnification
agreements with any new directors and executive officers in the future.


                                       1
<PAGE>   3

ITEM 7.  EXEMPTION FROM REGISTRATION CLAIMED

         Not applicable.

ITEM 8.  EXHIBITS

<TABLE>
<CAPTION>
Exhibit
Number                      Document
-------                     --------
<S>           <C>
  4.1*        Specimen Common Stock Certificate

  5.1         Opinion of Wilson Sonsini Goodrich & Rosati, Professional
              Corporation ("WSGR"), with respect to the legality of the
              securities being registered

  10.1        RightPoint Software, Inc. (formerly DataMind Corporation) 1996
              Stock Option Plan

  23.1        Consent of Arthur Andersen, LLP, Independent Accountants

  23.2        Consent of WSGR (contained in Exhibit 5.1)

  24.1        Power of Attorney (see page 4)

</TABLE>

         * - Previously filed as an exhibit to Registrant's Registration
Statement on Form S-1 (File No. 333-82799), declared effective on September 21,
1999, and incorporated herein by reference.

ITEM 9.  UNDERTAKINGS

      (a)   The undersigned Registrant hereby undertakes:

            (1)   To file, during any period in which offers or sales are being
made, a post-effective amendment to this Registration Statement to include any
material information with respect to the plan of distribution not previously
disclosed in the Registration Statement or any material change to such
information in the Registration Statement.

            (2)   That, for the purpose of determining any liability under the
Securities Act each such post-effective amendment shall be deemed to be a new
registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

            (3)   To remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold at the
termination of the offering.

            (b)   The undersigned Registrant hereby undertakes that, for
purposes of determining any liability under the Securities Act, each filing of
the Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

                                       2
<PAGE>   4

            (c)   Insofar as indemnification for liabilities arising under the
Securities Act may be permitted to directors, officers and controlling persons
of the Registrant pursuant to the foregoing provisions, or otherwise, the
Registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the
Securities Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities
Act and will be governed by the final adjudication of such issue.

                  [Remainder of Page Intentionally Left Blank]



                                       3
<PAGE>   5

                                   SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant,
E.piphany, Inc., certifies that it has reasonable grounds to believe that it
meets all of the requirements for filing on Form S-8 and has duly caused this
Registration Statement on Form S-8 to be signed on its behalf by the
undersigned, thereunto duly authorized, in the city of San Mateo, State of
California, on January 10, 2000.

                                       E.piphany, Inc.

                                       By: /s/ ROGER S. SIBONI
                                          -----------------------------------
                                          Roger S. Siboni
                                          President and Chief Executive Officer
                                          (Principal Executive Officer)


                                POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints Roger S. Siboni and Kevin J. Yeaman and each of
them, acting individually, as his attorney-in-fact, with full power of
substitution, for him and in any and all capacities, to sign any and all
amendments to this Registration Statement on Form S-8 (including post-effective
amendments) and to file the same, with all exhibits thereto and other documents
in connection therewith, with the Securities and Exchange Commission, hereby
ratifying and confirming our signatures as they may be signed by our said
attorney to any and all amendments to the Registration Statement on Form S-8.

Pursuant to the requirements of the Securities Act of 1933, this Registration
Statement on Form S-8 has been signed by the following persons in the capacities
and on the dates indicated.

<TABLE>
<CAPTION>
               SIGNATURE                                     TITLE                               DATE
<S>                                       <C>                                               <C>
/s/ ROGER S. SIBONI                       President, Chief Executive Officer and            January 10, 2000
-----------------------------------       Director (Principal Executive Officer)
 Roger S. Siboni

/s/ KEVIN J. YEAMAN                       Chief Financial Officer (Principal
-----------------------------------       Financial and Accounting Officer)                 January 10, 2000
 Kevin J. Yeaman


/s/ PAUL M. HAZEN                         Director                                          January 10, 2000
-----------------------------------
 Paul M. Hazen


/s/ ROBERT L. JOSS                        Director                                          January 10, 2000
-----------------------------------
Robert L. Joss

/s/ SAM H. LEE                            Director                                          January 10, 2000
-----------------------------------
Sam H. Lee

/s/ DOUGLAS J. MACKENZIE                  Director                                          January 10, 2000
-----------------------------------
Douglas J. Mackenzie
</TABLE>


<PAGE>   6




                                INDEX TO EXHIBITS
<TABLE>
<CAPTION>
Exhibit
Number                                Document
-------                               --------
<S>             <C>
    4.1*        Specimen Common Stock Certificate

    5.1         Opinion of Wilson Sonsini Goodrich & Rosati, Professional
                Corporation ("WSGR"), with respect to the legality of the
                securities being registered

   10.1         RightPoint Software, Inc. (formerly DataMind Corporation) 1996
                Stock Option Plan

   23.1         Consent of Arthur Andersen, LLP, Independent Accountants

   23.2         Consent of WSGR (contained in Exhibit 5.1)

   24.1         Power of Attorney (see page 4)

</TABLE>
-------------------

* - Previously filed as an exhibit to Registrant's Registration Statement on
Form S-1 (File No. 333-82799), declared effective on September 21, 1999, and
incorporated herein by reference.
[{"type": "S-8", "sequence": "1", "description": "FORM S-8", "secsgml_size_bytes": 14889}]
{"company-data": {"conformed-name": "E PIPHANY INC", "cik": "0001089613", "assigned-sic": "7389", "irs-number": "770443392", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-94317", "film-number": "504502"}, "business-address": {"street1": "2300 GENG ROAD", "street2": "SUITE 200", "city": "PALO ALTO", "state": "CA", "zip": "94303", "phone": "6504962430"}}
1
        AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JANUARY 10, 2000
                                                  REGISTRATION NO. 333-_________
================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM S-8

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                                 E.PIPHANY, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

        DELAWARE           1900 SOUTH NORFOLK STREET,            77-0443392
(STATE OF INCORPORATION)          SUITE 310                   (I.R.S. EMPLOYER
                           SAN MATEO, CALIFORNIA 94403       IDENTIFICATION NO.)

   (ADDRESS, INCLUDING ZIP CODE, OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)

            RIGHTPOINT SOFTWARE, INC. (FORMERLY DATAMIND CORPORATION)
                             1996 STOCK OPTION PLAN
                            (FULL TITLE OF THE PLAN)

                                 ROGER S. SIBONI
                      PRESIDENT AND CHIEF EXECUTIVE OFFICER
                                 E.PIPHANY, INC.
                      1900 SOUTH NORFOLK STREET, SUITE 310
                           SAN MATEO, CALIFORNIA 94403
                                 (650) 356-3800
                      (NAME, ADDRESS, AND TELEPHONE NUMBER,
                   INCLUDING AREA CODE, OF AGENT FOR SERVICE)

                                    COPY TO:
                              AARON J. ALTER, ESQ.
                            N. ANTHONY JEFFRIES, ESQ.
                        WILSON SONSINI GOODRICH & ROSATI
                            PROFESSIONAL CORPORATION
                               650 PAGE MILL ROAD
                               PALO ALTO, CA 94304
                                 (650) 493-9300

                         CALCULATION OF REGISTRATION FEE
==========================================================================================================================
                                                                          PROPOSED
                TITLE OF SECURITIES TO                    AMOUNT           MAXIMUM      PROPOSED MAXIMUM       AMOUNT OF
                    BE REGISTERED                         TO BE        OFFERING PRICE       AGGREGATE        REGISTRATION
                                                        REGISTERED(1)    PER SHARE(2)    OFFERING PRICE(2)        FEE
--------------------------------------------------------------------------------------------------------------------------
RightPoint Software, Inc. 1996 Stock Option Plan          477,710         $41.23            19,698,055          $5,201
==========================================================================================================================
(1)   This Registration Statement shall also cover any additional shares of
      Common Stock which become issuable under the Plan being registered
      pursuant to this Registration Statement by reason of any stock dividend,
      stock split, recapitalization or other similar transaction effected
      without the receipt of consideration which results in an increase in the
      number of the Registrant's outstanding shares of Common Stock.

(2)   Computed in accordance with Rule 457(h) under the Securities Act of 1933,
      as amended (the "Securities Act"), solely for the purpose of calculating
      the registration fee. With respect to 477,710 shares subject to
      outstanding options to purchase Common Stock under the Plan, the proposed
      maximum offering price per share is equal to the weighted average exercise
      price of $41.23 per share pursuant to Rule 457(h) under the Securities
      Act.
2

                                     PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

ITEM 3.  INCORPORATION OF DOCUMENTS BY REFERENCE

         There are hereby incorporated by reference into this Registration
Statement and into the Prospectuses relating to this Registration Statement
pursuant to Rule 428 the following documents and information previously filed
with the Securities and Exchange Commission (the "Commission"):

1.    The Registrant's prospectus filed pursuant to Rule 424(b) under the
      Securities Act relating to the Registrant's Registration Statement on Form
      S-1, as amended (SEC File No. 333-82799), on September 22, 1999.

2.    The Registrant's quarterly report filed pursuant to Section 13(a) or 15(d)
      of the Securities Exchange Act of 1934, as amended (the "Exchange Act")
      on Form 10-Q (SEC File No. 000-27183), on November 15, 1999 since the
      date of the document referred to in (1) above.

3.    The description of Registrant's Common Stock contained in Registrant's
      Registration Statement on Form 8-A filed with the Commission on August 30,
      1999.

      All documents filed by the Registrant pursuant to Sections 13(a), 13(c),
14 and 15(d) of the Exchange Act after the date hereof, and prior to the filing
of a post-effective amendment which indicates that all securities offered have
been sold or which registers all securities then remaining unsold, shall be
deemed to be incorporated by reference herein and to be part hereof from the
date of filing of such documents.

ITEM 4.  DESCRIPTION OF SECURITIES

         Not applicable.

ITEM 5.  INTERESTS OF NAMED EXPERTS AND COUNSEL

         Not applicable.

ITEM 6.  INDEMNIFICATION OF DIRECTORS AND OFFICERS

     Section 145 of the Delaware General Corporation Law permits a corporation
to include in its charter documents, and in agreements between the corporation
and its directors and officers, provisions expanding the scope of
indemnification beyond that specifically provided by the current law.

     Article VII of the Registrant's Restated Certificate of Incorporation
provides for the indemnification of directors to the fullest extent permissible
under Delaware law.

     Article VI of the Registrant's Bylaws provides for the indemnification of
officers, directors and third parties acting on behalf of the Registrant if
such person acted in good faith and in a manner reasonably believed to be in
and not opposed to the best interest of the Registrant, and, with respect to
any criminal action or proceeding, the indemnified party had no reason to
believe his or her conduct was unlawful.

     The Registrant has entered into indemnification agreements with its
directors and executive officers, in addition to indemnification provided for
in the Registrant's Bylaws, and intends to enter into indemnification
agreements with any new directors and executive officers in the future.

                                       1
3

ITEM 7.  EXEMPTION FROM REGISTRATION CLAIMED

         Not applicable.

ITEM 8.  EXHIBITS
Exhibit
Number                      Document
-------                     --------
4.1*        Specimen Common Stock Certificate

  5.1         Opinion of Wilson Sonsini Goodrich & Rosati, Professional
              Corporation ("WSGR"), with respect to the legality of the
              securities being registered

  10.1        RightPoint Software, Inc. (formerly DataMind Corporation) 1996
              Stock Option Plan

  23.1        Consent of Arthur Andersen, LLP, Independent Accountants

  23.2        Consent of WSGR (contained in Exhibit 5.1)

  24.1        Power of Attorney (see page 4)
* - Previously filed as an exhibit to Registrant's Registration
Statement on Form S-1 (File No. 333-82799), declared effective on September 21,
1999, and incorporated herein by reference.

ITEM 9.  UNDERTAKINGS

      (a)   The undersigned Registrant hereby undertakes:

            (1)   To file, during any period in which offers or sales are being
made, a post-effective amendment to this Registration Statement to include any
material information with respect to the plan of distribution not previously
disclosed in the Registration Statement or any material change to such
information in the Registration Statement.

            (2)   That, for the purpose of determining any liability under the
Securities Act each such post-effective amendment shall be deemed to be a new
registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

            (3)   To remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold at the
termination of the offering.

            (b)   The undersigned Registrant hereby undertakes that, for
purposes of determining any liability under the Securities Act, each filing of
the Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

                                       2
4

            (c)   Insofar as indemnification for liabilities arising under the
Securities Act may be permitted to directors, officers and controlling persons
of the Registrant pursuant to the foregoing provisions, or otherwise, the
Registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the
Securities Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities
Act and will be governed by the final adjudication of such issue.

                  [Remainder of Page Intentionally Left Blank]

                                       3
5

                                   SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant,
E.piphany, Inc., certifies that it has reasonable grounds to believe that it
meets all of the requirements for filing on Form S-8 and has duly caused this
Registration Statement on Form S-8 to be signed on its behalf by the
undersigned, thereunto duly authorized, in the city of San Mateo, State of
California, on January 10, 2000.

                                       E.piphany, Inc.

                                       By: /s/ ROGER S. SIBONI
                                          -----------------------------------
                                          Roger S. Siboni
                                          President and Chief Executive Officer
                                          (Principal Executive Officer)

                                POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints Roger S. Siboni and Kevin J. Yeaman and each of
them, acting individually, as his attorney-in-fact, with full power of
substitution, for him and in any and all capacities, to sign any and all
amendments to this Registration Statement on Form S-8 (including post-effective
amendments) and to file the same, with all exhibits thereto and other documents
in connection therewith, with the Securities and Exchange Commission, hereby
ratifying and confirming our signatures as they may be signed by our said
attorney to any and all amendments to the Registration Statement on Form S-8.

Pursuant to the requirements of the Securities Act of 1933, this Registration
Statement on Form S-8 has been signed by the following persons in the capacities
and on the dates indicated.
SIGNATURE                                     TITLE                               DATE
/s/ ROGER S. SIBONI                       President, Chief Executive Officer and            January 10, 2000
-----------------------------------       Director (Principal Executive Officer)
 Roger S. Siboni

/s/ KEVIN J. YEAMAN                       Chief Financial Officer (Principal
-----------------------------------       Financial and Accounting Officer)                 January 10, 2000
 Kevin J. Yeaman

/s/ PAUL M. HAZEN                         Director                                          January 10, 2000
-----------------------------------
 Paul M. Hazen

/s/ ROBERT L. JOSS                        Director                                          January 10, 2000
-----------------------------------
Robert L. Joss

/s/ SAM H. LEE                            Director                                          January 10, 2000
-----------------------------------
Sam H. Lee

/s/ DOUGLAS J. MACKENZIE                  Director                                          January 10, 2000
-----------------------------------
Douglas J. Mackenzie
6

                                INDEX TO EXHIBITS
Exhibit
Number                                Document
-------                               --------
4.1*        Specimen Common Stock Certificate

    5.1         Opinion of Wilson Sonsini Goodrich & Rosati, Professional
                Corporation ("WSGR"), with respect to the legality of the
                securities being registered

   10.1         RightPoint Software, Inc. (formerly DataMind Corporation) 1996
                Stock Option Plan

   23.1         Consent of Arthur Andersen, LLP, Independent Accountants

   23.2         Consent of WSGR (contained in Exhibit 5.1)

   24.1         Power of Attorney (see page 4)
-------------------

* - Previously filed as an exhibit to Registrant's Registration Statement on
Form S-1 (File No. 333-82799), declared effective on September 21, 1999, and
incorporated herein by reference.