UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                  ------------

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934


                               Opus360 Corporation
                          ---------------------------
                                (Name of Issuer)


                    Common Stock, $0.001 par value per share
                         (Title of Class of Securities)

                                   68400F109
                                 (CUSIP Number)
           Pekka Pere                         with copies to:
           Proha Plc                          Petri Y.J. Haussila, Esq.
           Maapallonkuja 1 A                  White & Case LLP
           FIN-02210 Espoo                    Etelaranta 14
           Finland                            FIN-00130 Helsinki
           011-358-20-4362-000                Finland
                                              011-358-9-228-228-641

            (Name, Address and Telephone Number of Person Authorized
                     to Receive Notices and Communications)

                                 April 11, 2001
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].





CUSIP No. 68400F109
================================================================================




-------- -----------------------------------------------------------------------
1        NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Proha Plc                I.R.S. IDENTIFICATION NO. ___________

-------- -----------------------------------------------------------------------
         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP              (a) [ ]
                                                                       (b) [X]
-------- -----------------------------------------------------------------------
 3       SEC USE ONLY

-------- -----------------------------------------------------------------------
 4       SOURCE OF FUNDS

         WC

-------- -----------------------------------------------------------------------
 5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED   [ ]
         PURSUANT TO ITEMS 2(d) or 2(e)

-------- -----------------------------------------------------------------------
 6       CITIZENSHIP OR PLACE OF ORGANIZATION

         Finland

--------------------------------------------------------------------------------
UMBER OF SHARES                      7      SOLE VOTING POWER
BENEFICIALLY OWNED                          4,719,299
BY EACH REPORTING
PERSON WITH                         ------- ------------------------------------
                                     8      SHARED VOTING POWER
                                            None
                                    ------- ------------------------------------
                                     9      SOLE DISPOSITIVE POWER
                                            None
                                    ------- ------------------------------------
                                     10     SHARED DISPOSITIVE POWER
                                            None
-------- -----------------------------------------------------------------------
 11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         4,719,299
-------- -----------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES                            [ ]

-------- -----------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         9.5%
-------- -----------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

         CO
-------- -----------------------------------------------------------------------





                                  SCHEDULE 13D

                               OPUS360 CORPORATION

Item 1.   Security and Issuer

               This  statement  on  Schedule  13D  relates to the common  stock,
$0.001 par value per share ("Common Stock"), of Opus360 Corporation,  a Delaware
corporation (the "Issuer"), the principal executive offices of which are located
at 39 West 13th Street, 3rd Floor, New York, New York.

Item 2.  Identity and Background

               (a) - (c);  (f) This  statement on Schedule 13D is being filed by
Proha Plc ("Proha"),  a public  company  listed on the Helsinki Stock  Exchange,
incorporated under the laws of Finland.

               Proha is a Finnish  information  technology services company that
focuses on providing  management  services through the Internet.  Proha provides
technology and business  applications  and consulting and outsourcing  services.
The  principal  executive  offices of Proha are  located at  Maapallonkuja  1 A,
FIN-02210, Espoo, Finland, telephone: 011-358-20-4362-000.

               The  name,  citizenship,   business  address,  present  principal
occupation  or  employment of each member of the Board of Directors of Proha and
the executive officers of Proha are set forth on Schedule I attached hereto.

               (d)-(e)  During the last five  years,  neither  Proha nor, to the
best of Proha's  knowledge,  any person named on Schedule I attached  hereto has
been convicted in a criminal proceeding (excluding traffic violations or similar
misdemeanors)  or has  been a  party  to a civil  proceeding  of a  judicial  or
administrative  body of competent  jurisdiction as a result of which such person
was or is  subject  to a  judgment,  decree  or  final  order  enjoining  future
violations  of, or prohibiting  or mandating  activities  subject to, federal or
state securities laws or finding any violation with respect to such laws.

Item 3.    Source and Amount of Funds or Other Consideration

           Not Applicable.


Item 4.    Purpose of the Transaction

          (a) - (j) Pursuant to the terms of the Share Exchange Agreement, dated
April  11,  2001,  by and among  the  Issuer  and  Proha  (the  "Share  Exchange
Agreement"),  Proha  entered  into a Voting  Agreement  on April  11,  2001 (the
"Voting  Agreement)  by and  among  Ari  Horowitz  and  Carlos  Cashman  (each a
"Stockholder"  and  collectively,  the  "Stockholders").  Pursuant to the Voting
Agreement, the Stockholders granted Proha an irrevocable proxy (the "Irrevocable
Proxy") which appointed Proha as each Stockholder's  proxy and  attorney-in-fact
with full power of substitution, to vote all shares of Common Stock owned by the
Stockholders for the purposes  described  below. The Irrevocable  Proxy does not
give ownership of the shares of Common Stock owned directly or indirectly by the
Stockholders to Proha and is subject to certain limitations, as set forth in the
Voting  Agreement.  The  Irrevocable  Proxy will  terminate and be of no further
force and effect on the earlier to occur of (i) the Closing (as defined  below),
(ii)  September  30,  2001,  and (iii)  the  termination  of the Share  Exchange
Agreement  pursuant  to the terms  thereof.  The  Voting  Agreement  is filed as
Exhibit 10.1 hereto.

          On April  11,  2001,  Proha  and the  Issuer  entered  into the  Share
Exchange Agreement,  which was filed by the Issuer as Exhibit 2.1 to the Current
Report  on  Form  8-K by the  Issuer  with  the  U.S.  Securities  and  Exchange
Commission  (the  "SEC") on April 12, 2001 (SEC file  number  000-29793)  and is
incorporated  herein by reference.  Pursuant to the Share Exchange Agreement and
subject to the terms and conditions set forth therein (including approval by the
stockholders of the Issuer),  the Issuer shall issue and Proha shall accept from
the Issuer on the Closing  Date (as defined  below) a number of shares of Common
Stock which shall represent 80% of the Common Stock on a fully-diluted  basis as
of the Closing Date (the "Opus Shares").  In  consideration  for the issuance of
the Opus Shares on the Closing Date, Proha shall assign, transfer and deliver to
the Issuer,  and the Issuer shall take delivery at the Closing of (i) all of the
issued and outstanding  shares of Artemis  Acquisition  Corporation,  a Delaware
corporation and a wholly-owned  subsidiary of Proha (the "Artemis Shares"), (ii)
a number of shares of Intellisoft  Oy, a Finnish  corporation and a wholly-owned
subsidiary  of Proha,  equal to 19.9% of the  issued and  outstanding  shares of
Intellisoft Oy on a fully-diluted basis (the "Intellisoft  Shares"), and (iii) a
number of shares of  Accountor  Oy, a  Finnish  corporation  and a  wholly-owned
subsidiary of Proha,  representing 19.9% of the issued and outstanding shares of
Accountor Oy on a filly-diluted basis (the "Accountor Shares", and together with
the Artemis Shares and the Intellisoft Shares, the "Exchanged Shares"). The date
on which such  transactions  are to be  consummated is referred to herein as the
"Closing  Date".  Proha currently does not own any shares of Common Stock of the
Issuer.

               The  consummation of the  transactions  contemplated by the Share
Exchange  Agreement  (the  "Closing")  is subject to conditions  beyond  Proha's
control, such as (i) the approval of the transactions  contemplated by the Share
Exchange  Agreement by the Issuer's  stockholders (the "Stockholder  Approval"),
and  (ii)  approval  of the  transactions  contemplated  by the  Share  Exchange
Agreement by Proha's stockholders.

               Pursuant  to  the  Share  Exchange  Agreement,  the  Stockholders
entered  into  the  Voting  Agreement  whereby  they  agreed  to (i)  vote  such
Stockholder's  shares of Common Stock in favor of the transactions  contemplated
by the Share Exchange Agreement at a meeting of the Issuer's stockholders called
for the purpose of securing  the  Stockholder  Approval,  (ii) vote  against any
alternative  transactions  and certain  extraordinary  transactions  involving a
reorganization of the Issuer or a sale of all or substantially all of the assets
of the  Issuer,  (iii)  vote in favor of the  issuance  of  Common  Stock at the
Closing,  (iv) vote in favor of the amendment and restatement of the certificate
of incorporation of the Issuer to reflect a four-for-one reverse stock split and
a change in the name of the Issuer,  and (v) vote in favor of Prohas's  nominees
to the Issuer's Board of Directors as of the Closing Date. In furtherance of the
foregoing,  each  Stockholder has granted to Proha an Irrevocable  Proxy to vote
such Stockholder's shares of Common Stock as described above. On April 11, 2001,
the   Stockholders   collectively   owned  4,719,299   shares  of  Common  Stock
representing  approximately  9.5% of the issued and outstanding shares of Common
Stock as of April 11, 2001 (based on the Issuer's  representations  in the Share
Exchange Agreement and the Voting  Agreement).  The Voting Agreement is filed as
Exhibit 10.1 hereto.

               The  Share  Exchange  Agreement   contains  certain   restrictive
covenants  (subject to certain  exceptions)  with  respect to the conduct of the
business of the Issuer from the date of the Share Exchange Agreement through the
Closing,  pursuant to which the Issuer has agreed,  among other things,  without
the prior written consent of Proha,  not to (i) declare and pay dividends,  (ii)
issue or sell any of its  securities  or make any other  changes in its  capital
structures,  (iii)  amend its  charters or bylaws,  and (iv) enter into  certain
material transactions.

               Upon the  Closing,  the Board of  Directors  of the Issuer  shall
consist of 8 members,  5 of which shall be comprised of nominees of Proha. After
the Closing,  pursuant to the Share  Exchange  Agreement,  the Issuer's Board of
Directors will be adjusted as follows: so long as Proha, or any Proha successor,
beneficially owns at least (i) 50% of the aggregate issued and outstanding share
of Common  Stock,  the Issuer's  Board of Directors  shall include 5 nominees of
Proha,  (ii) 33.33% but less than 50% of the  aggregate  issued and  outstanding
shares of Common Stock, the Issuer's Board of Directors shall include 4 nominees
of  Proha,  and  (iii) 10% but less than  33.33%  of the  aggregate  issued  and
outstanding  shares of Common  Stock,  the  Issuer's  Board of  Directors  shall
include 3 nominees of Proha.

               The Share  Exchange  Agreement  may be  terminated  (i) by mutual
agreement  of the  parties  at any  time,  (ii) by either  party if  Stockholder
Approval  has not been  obtained,  (iii) by either party if a court of competent
jurisdiction  or  any   Governmental   Authority  shall  have  issued  an  order
prohibiting the transactions  contemplated by the Share Exchange Agreement, (iv)
by the Issuer if the Board of  Directors  of Proha fails to recommend to Proha's
stockholders  approval  of the Share  Exchange  Agreement  and the  transactions
contemplated  thereby or Proha breaches certain  representations and warranties,
and (v) by Proha if the  Issuer's  Board of  Directors  approves an  alternative
transaction,  the Issuer violates certain covenants or if Proha is not satisfied
with the Issuer's  directors and officers  insurance coverage in connection with
the pending class action suit against the Issuer.  The Share Exchange  Agreement
shall  automatically  terminate if the  transactions  contemplated  by the Share
Exchange Agreement are not consummated on or prior to September 30, 2001.

               If the Share Exchange  Agreement is terminated by Proha under the
circumstances described in clauses (ii) or (v) above, the Issuer is obligated to
reimburse Proha for its out-of-pocket  expenses (subject to certain limitations)
incurred in connection with the Share Exchange Agreement and is obligated to pay
Proha in certain circumstances a termination fee of up to $250,000.

               Pursuant to the Share Exchange Agreement,  Proha shall exercise a
purchase  option  within  90 days  following  January  1,  2002 to  acquire  the
remaining and outstanding  shares of Artemis  International GmbH pursuant to the
Share Option Agreement,  dated December 4, 2000, by and between Proha and Holger
Blumenthal and David Thomson.  Proha shall transfer such shares to the Issuer at
no additional consideration.

               The description of each of the agreements herein are qualified in
their  entirety by  reference to such  agreements,  copies of which are filed as
Exhibits  hereto or are  incorporated  by  reference  from other  filings of the
Issuer with the SEC.

               Other than as described  herein,  Proha nor, to the best if their
knowledge, any of the individuals referred to in Item 2, has any present plan or
proposal  which  relates to, or could  result in the  occurrence  of, any of the
events  referred to in  subparagraphs  (a) through (j) of Item 4 of Schedule 13D
(although they reserve the right to develop such plans).

Item 5.  Interest in Securities of the Issuer

               (a) As a result of the execution of the Voting  Agreement,  Proha
may be deemed to be the  beneficial  owner of 4,719,299  shares of Common Stock,
which would represent approximately 9.5% of the shares of issued and outstanding
Common Stock as of April 11, 2001 (based on the Issuer's  representations in the
Share Exchange  Agreement and the Voting Agreement).  Proha expressly  disclaims
beneficial  ownership  of the shares of Common  Stock  which are  subject to the
Voting Agreement.

               (b) In  respect  of the  shares of Common  Stock  subject  to the
Voting  Agreement,  Proha has the sole power to vote or direct to vote 4,719,299
shares of Common Stock,  which would represent  approximately 9.5% of the shares
of  issued  and  outstanding  Common  Stock as of April 11,  2001  (based on the
Issuer's  representations  in  the  Share  Exchange  Agreement  and  the  Voting
Agreement).  Proha does not have any power to dispose or direct the  disposition
of any shares of Common Stock.

               (c) Except as described herein, neither Proha nor, to the best of
Proha's knowledge, any of the persons referred to in Schedule I attached hereto,
beneficially  owns or has  acquired or  disposed  of any shares of Common  Stock
during the past 60 days.

               (d) Not applicable.

               (e) Not applicable.

Item 6.  Contracts,  Arrangements, Understandings  or Relationships with Respect
         to Securities of the Issuer

               Share  Exchange   Agreement.   Pursuant  to  the  Share  Exchange
Agreement, the Issuer, among other things, has agreed to issue to Proha the Opus
Shares in  consideration  for which Proha shall transfer the Exchanged Shares to
the  Issuer.  The  Share  Exchange  Agreement  contains  covenants  and  closing
conditions which are customary for similar transactions of this kind.

               Voting  Agreement.   Pursuant  to  the  Voting   Agreement,   the
Stockholders,  who own an  aggregate  of  approximately  9.5% of the  issued and
outstanding  Common Stock (based on the  Issuer's  representations  in the Share
Exchange Agreement and Voting Agreement), granted the Irrevocable Proxy to Proha
to vote all of their  Common  Stock with respect to the matters set forth in the
Voting Agreement.

Item 7.  Material to be filed as Exhibits

10.1     Voting Agreement, dated April 11, 2001, by  and  among the Stockholders
         named therein and Proha Plc






                                    SIGNATURE


               After  reasonable  inquiry  and to the best of my  knowledge  and
belief,  I certify  that the  information  set forth in this  statement is true,
complete and correct.

Dated:  April 23, 2001




                                       PROHA PLC



                                       By:/s/Pekka Pere
                                          ----------------------------------
                                          Name:  Pekka Pere
                                          Title: Chief Executive Officer







                                   Schedule I

Set forth below is the name,  present principal  occupation or employment of the
Board of  Directors  and each  executive  officer  of Proha Plc.  The  principal
address of Proha Plc and, unless  indicated  below, the current business address
for  each  individual  listed  below is  Maapallonkuja  1 A,  FIN-02210,  Espoo,
Finland, telephone: 011-358-20-4362-000.



Name/                                        Citizenship        Present  Principal  Occupation and Business Address
Position at Proha Plc/                                          of Employer
Current Business Address

                                                          
Olof Odman/                                  Sweden             Chairman  and  Managing   Director  of  Cobnet  AB,
Chairman of the Board                                           Neglinge Center, 133 33 Saltsjobaden, Sweden
of Directors/
Neglinge Center, 133 33 Saltsjobaden,
Sweden

Pekka Pere/                                  Finland            Chief Executive Officer of Proha Plc
Director and Chief Executive Officer

Klaus Cawen/                                 Finland            Senior Vice  President of Kone  Corporation,  Eliel
Director                                                        Saarisen tie Pb 26, FIN-00401, Helsinki, Finland

Alec Gores/                                  United States      Chairman of Gores Technology Group,  10877 Wilshire
Director/                                                       Boulevard,  Suite  1805,  Los  Angeles,  California
10877 Wilshire Boulevard, Suite 1805, Los                       90024
Angeles, California  90024

Pekka Makela/                                Finland            Senior Consultant at Proha Plc
Director/Senior Consultant

Steven Yager/                                United States      President  and Chief  Executive  Officer of Artemis
Director/                                                       Acquisition   Corporation   and  the   subsidiaries
6260 Lookout Road                                               thereof,  6260  Lookout  Road,  Boulder,   Colorado
Boulder, Colorado  80301                                        80301

Juha Tommila/                                Finland            Chief   Executive    Officer   of   Accountor   Oy,
Vice President of Financial Management                          Maapallonkuja 1 A FIN 02210, Espoo, Finland
Business Area of Proha Plc

Raimo Vaalasranta/                           Finland            Chief   Executive   Officer  of   Intellisoft   Oy,
Vice President of the Internet Business                         Maapallonkuja 1 A FIN 02210, Espoo, Finland
Technologies Area of Proha Plc






                                  EXHIBIT INDEX



10.1     Voting  Agreement, dated  April 11, 2001, by and among the Stockholders
         named therein and Proha Plc