Harvard Bioscience, Inc.
May 5, 2005

HBIO Reports First Quarter Results

HOLLISTON, Mass.--(BUSINESS WIRE)--May 5, 2005--Harvard Bioscience, Inc. (Nasdaq: HBIO), today reported financial highlights for the three months ended March 31, 2005.

Revenues for the three months ended March 31, 2005 were $22.4 million, an increase of 1% over revenues of $22.2 million for the three months ended March 31, 2004. Net income, as measured under U.S. generally accepted accounting principles ("GAAP"), for the quarter ended March 31, 2005 was $0.2 million or $0.01 per basic and diluted share, compared to a net loss of $51,000, or $0.00 per basic and diluted share, for the quarter ended March 31, 2004. Non-GAAP adjusted net income was $0.8 million and $0.03 per diluted share for the quarters ended March 31, 2005 and 2004.

The following table reconciles the non-GAAP adjusted net income and net income per diluted share to our U.S. GAAP net income and net income per diluted share.

                       Harvard Bioscience, Inc.
Reconciliation of Non-GAAP Adjusted Net Income to U.S. GAAP Net Income
                 (in Thousands, Except Per Share Data)
                              (Unaudited)

                                                 March 31,
                                           2005            2004
                                       --------------- ---------------
                                               EPS             EPS
                                            Equivalent      Equivalent
                                            ----------      ----------

Adjusted net income                    $806     $0.03  $798     $0.03
Less:
Stock compensation expense                -         -    47      0.00
Amortization of intangibles             896      0.03   923      0.03
Fair value adjustment to cost of
 product sales                            -         -   302      0.01
Income tax benefit                     (292)    (0.01) (423)    (0.01)
                                       --------------- ---------------
GAAP net income                        $202     $0.01  $(51)   $(0.00)
                                       =============== ===============

Weighted average common shares diluted         30,893          30,164

"Despite a widespread slowdown in capital equipment spending at both pharmaceutical companies and universities, our Genomic Solutions subsidiary, which sells primarily capital equipment, continued to show improvement. Orders for Genomic Solutions products compared to the first quarter of last year grew and gross margins have improved significantly. Genomic Solutions was profitable, on an adjusted basis which excludes amortization of intangible assets, for the second quarter in a row. As we stated last quarter, we believe we have turned the corner at Genomic Solutions and are now focused on growing its revenues and profits. However, the capital spending slowdown did have an impact on sales of our high margin COPAS product line which fell short of our original expectations for the quarter," said Chane Graziano, Chief Executive Officer.

"During the quarter, sales of core products such as syringe pumps, spectrophotometers, and amino acid analyzers grew significantly. Sales of syringe pumps at Harvard Apparatus, grew a very strong 15%(1) over the same period last year. Sales of spectrophotometers and amino acid analyzers at our Biochrom subsidiary, which had been weak for several quarters primarily due to the reorganization of GE Healthcare, our largest distributor, grew by 8% over the same period last year."

Mr. Graziano continued, "Despite the constrained capital spending environment we are encouraged by the recent strength of some of our core product lines and the number of funded prospects for our COPAS product line for the balance of the year. As a result, we believe our previous guidance for revenues and adjusted earnings per share is still achievable for 2005. This guidance does not include the impact of potential acquisitions in 2005, nor does it reflect the potential impact of foreign currency fluctuations."

Financial Results:

Revenues for the first quarter of 2005 grew 1% from the same quarter in 2004 after favorable foreign exchange effects. Excluding favorable foreign exchange effects of approximately $0.3 million, revenues for the first quarter of 2005 were relatively flat compared with the same period in 2004.

Cost of product revenues for the first quarter was approximately $11.4 million for 2005 and $11.6 million for 2004. Gross margin percentage on product revenues ("gross margin") was 49% and 47% for the first quarter of 2005 and 2004, respectively. Gross margin increased for the first quarter of 2005 primarily due to gross margin improvements at our Genomic Solutions subsidiary as a result of the restructuring efforts which began in the second quarter of 2004 and favorable product mix at Genomic Solutions. For the first quarter of 2004 approximately $0.3 million of the cost of product revenues was related to fair value adjustments to inventory and backlog associated with our BioRobotics, KD Scientific, and Hoefer acquisitions. Excluding these adjustments, gross margin was 48% for the three month period ended March 31, 2004.

Sales and marketing expense was $4.4 million for the quarter ended March 31, 2005 compared to $4.3 million for the quarter ended March 31, 2004. The increase in sales and marketing expenses was primarily attributable to an increase in salary and related expenses at our Harvard Apparatus and Hoefer businesses, offset by a decrease in salary and related expenses at our Genomic Solutions subsidiary. As a percentage of total revenues, sales and marketing expense for the first quarter of 2005 was 20% compared to approximately 19% for the same quarter in 2004.

General and administrative expense for the first quarter of 2005 of $3.3 million decreased approximately $0.2 million from $3.5 million in the first quarter of 2004. The decrease was primarily due to a reduction in payroll and payroll related expenses at our Genomic Solutions subsidiary of approximately $0.1 million and restructuring costs incurred in 2004 of approximately $0.3 million to shut down our Genomic Solutions Japanese sales office. These decreases were offset by increased costs associated with Sarbanes-Oxley compliance of approximately $0.3 million. As a percentage of revenues, general and administrative expense for the quarters ended March 31, 2005 and 2004 was approximately 15% and 16%, respectively.

Research and development expense was $1.9 million for the first quarter of 2005 compared to $1.7 million for the same period in 2004. The increase in research and development expense was primarily the result of increased consulting costs offset by a reduction in payroll and payroll related expenses at our Genomic Solutions subsidiary. As a percentage of total revenues, research and development expense for each of the first quarters of 2005 and 2004 was 8%.

Amortization of intangible assets for the three months ended March 31, 2005 was approximately $896,000 compared to $923,000 for the same period in 2004.

Net interest expense for the three months ended March 31, 2005 was approximately $193,000 compared to $124,000 for the three months ended March 31, 2004. The increase in net interest expense for the three months ended March 31, 2005 was primarily the result of higher average long-term debt balances in the first quarter of 2005 compared to the first quarter of 2004 and higher interest rates.

Losses from foreign exchange were approximately $148,000 for the quarter ended March 31, 2005 compared to a loss of approximately $143,000 for the same period in 2004.

The Company ended the quarter with cash and cash equivalents of $12.4 million, a decrease of approximately $1.5 million since December 31, 2004. The decrease in our cash position was primarily the result of payments made on our revolving credit facility of approximately $1.3 million, the timing of cash payments for accrued liabilities of approximately $1.0 million and tax payments of approximately $1.3 million. These decreases were offset by a reduction in trade receivables which generated approximately $1.1 million in cash during the quarter. The Company ended the quarter with approximately $15.2 million drawn against its $20 million credit facility.

As previously announced, management will host a conference call regarding first quarter results which will be simultaneously broadcast over the Internet and can be accessed through the Harvard Bioscience, Inc. web site. The conference call will begin at 8:30 a.m. Eastern Time on Friday, May 6, 2005. To listen to the conference call, log on to our website at: www.harvardbioscience.com, click on the Earnings Call icon. Any material financial and other statistical information presented on the call which is not included in our earnings release, as well as our earnings release, is available on our website by clicking on the Press Releases button. If you are unable to listen to the live web cast or the call, this press release and any related financial or statistical information will be archived on our web site by clicking on the Press Releases button or Earnings Call icon, as appropriate. The live conference call can also be accessed by dialing 800-901-5213 and referencing the pass code of "49967338".

Use of Non-GAAP Financial Information

In this press release, we have included non-GAAP financial information including adjusted statements of income, adjusted gross margin, adjusted net income, and adjusted net income per diluted share. We believe that this non-GAAP financial information provides investors with an enhanced understanding of the underlying operations of the business. For the periods presented, these non-GAAP financial measures have excluded certain expenses primarily resulting from purchase accounting or events that we do not believe are related to the underlying operations of the business including amortization of intangibles related to acquisitions, fair value adjustments of inventory and backlog related to acquisitions, and stock compensation expense, all net of tax. This non-GAAP financial information approximates information used by our management to internally evaluate the operating results of the Company. In particular, we believe that the presentation of a non-GAAP adjusted consolidated statement of income, including a number of adjusted line items, provides investors with a clearer understanding of the full effect of the adjustments that we make to our GAAP net income in order to derive our non-GAAP adjusted net income and net income per share. Tabular reconciliations of our non-GAAP adjusted net income and adjusted net income per diluted share for the three months ended March 31, 2005 and 2004 to the comparable GAAP financial information is included below in this press release in the format of non-GAAP adjusted consolidated statements of income.

The non-GAAP financial information provided in this press release should be considered in addition to, not as a substitute for, the financial information provided and presented in accordance with GAAP.

About Harvard Bioscience

Harvard Bioscience is a global developer, manufacturer and marketer of a broad range of specialized products, primarily scientific instruments and apparatus, used to accelerate drug discovery research at pharmaceutical and biotechnology companies, universities and government laboratories. HBIO sells its products to thousands of researchers in 100 countries through its direct sales force, an 1,100-page catalog, various specialty catalogs and through its distributors, including GE Healthcare (formerly Amersham Biosciences), Fisher Scientific and VWR. HBIO has sales and manufacturing operations in the United States, the United Kingdom, Germany, Austria and Belgium with sales facilities in France and Canada.

This press release contains and our conference call may contain forward-looking statements within the meaning of the federal securities laws. You can identify these statements by our use of the words "guidance," "expects," "plans," "estimates," "projects," "intends," "believes" and similar expressions that do not relate to historical matters. Forward-looking statements in this press release or that may be made during our conference call may include, but are not limited to, statements or inferences about the Company's or management's beliefs or expectations, the Company's anticipated future revenues and earnings, the strength of the Company's market position and business model, the impact of acquisitions, the outlook for the life sciences industry, the Company's business strategy, the positioning of the Company for growth, the market demand and opportunity for the Company's products, and the Company's plans, objectives and intentions that are not historical facts.

These statements involve known and unknown risks, uncertainties and other factors that may cause the Company's actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Factors that may cause the Company's actual results to differ materially from those in the forward-looking statements include the Company's failure to successfully integrate acquired businesses or technologies, expand its product offerings, introduce new products or commercialize new technologies, unanticipated costs relating to acquisitions, decreased demand for the Company's products due to changes in its customers' needs, financial position, general economic outlook, or other circumstances, overall economic trends, the timing of our customers' capital equipment purchases and the seasonal nature of purchasing in Europe, our potential misinterpretation of trends of our capital equipment product lines due to the cyclical nature of this market, economic, political and other risks associated with international revenues and operations, additional costs of complying recent changes in regulatory rules applicable to public companies, our ability to manage our growth, our ability to retain key personnel, competition from our competitors, technological changes resulting in our products becoming obsolete, our ability to meet the financial covenants contained in our credit facility, our ability to protect our intellectual property and operate without infringing on others' intellectual property, potential costs of any lawsuits to protect or enforce our intellectual property, economic and political conditions generally and those affecting pharmaceutical and biotechnology industries, impact of any impairment of our goodwill or intangible assets, and our acquisition of Genomic Solutions failing to qualify as a tax-free reorganization for federal tax purposes, plus factors described under the heading "Important Factors That May Affect Future Operating Results" in the Company's Annual Report on Form 10-K/A for the fiscal year ended December 31, 2004 or described in the Company's other public filings. The Company's results may also be affected by factors of which the Company is not currently aware. The Company may not update these forward-looking statements, even though its situation may change in the future, unless it has obligations under the federal securities laws to update and disclose material developments related to previously disclosed information.

For investor inquiries, please call (508) 893-8066. Press releases may be found on our web site, http://www.harvardbioscience.com.

(1) Assumes Harvard Bioscience acquired KD Scientific on January

1, 2004.

EXHIBIT #1

                       HARVARD BIOSCIENCE, INC.
            Selected Consolidated Balance Sheet Information
                       (Unaudited, in thousands)

                                                 March 31,   Dec. 31,
                                                      2005       2004
                                                ----------- ----------
Assets
Cash and cash equivalents                          $12,365    $13,867
Trade receivables                                   17,353     18,519
Inventories                                         25,675     25,465
Property, plant and equipment                        6,744      7,143
Goodwill and other intangibles                      68,703     69,938
Other assets                                         4,989      4,949
                                                ----------- ----------
          Total assets                            $135,829   $139,881
                                                =========== ==========

Liabilities
Total current liabilities                          $17,276    $16,064
Total liabilities                                   32,036     35,524
Stockholders' equity                               103,793    104,357
                                                ----------- ----------
          Total liabilities and stockholders'
           equity                                 $135,829   $139,881
                                                =========== ==========

EXHIBIT #2

                       HARVARD BIOSCIENCE, INC.
                 Consolidated Statements of Operations
                 (In thousands, except per share data)
                              (unaudited)
                                                   Three Months Ended
                                                         March 31,
                                                      2005     2004
                                                 ------------ --------

Product revenues                                     $22,204  $21,882
Research revenues                                        231      283
                                                 ------------ --------
  Total revenues                                      22,435   22,165

Costs and expenses:
     Cost of product revenues                         11,389   11,588
     Sales and marketing expenses                      4,426    4,298
     General and administrative expenses               3,331    3,523
     Research and development expenses                 1,887    1,670
     Amortization of intangible assets                   896      923
                                                 ------------ --------
     Total costs and expenses                         21,929   22,002

Operating income                                         506      163

Other income (expense):
     Foreign currency loss                              (148)    (143)
     Interest expense                                   (259)    (186)
     Interest income                                      66       62
     Other, net                                          160      (47)
                                                 ------------ --------
Other income (expense), net                             (181)    (314)
                                                 ------------ --------

Income before income taxes                               325     (151)
Income taxes                                             123     (100)
                                                 ------------ --------
Net income (loss)                                       $202     $(51)
                                                 ============ ========

Income (loss) per share:
     Basic                                             $0.01   $(0.00)
                                                 ============ ========
     Diluted                                           $0.01   $(0.00)
                                                 ============ ========

Weighted average common shares:
     Basic                                            30,413   30,164
                                                 ============ ========
     Diluted                                          30,893   30,164
                                                 ============ ========

EXHIBIT #3

                       HARVARD BIOSCIENCE, INC.
          Non-GAAP Adjusted Consolidated Statements of Income
                 (In thousands, except per share data)
                              (unaudited)

                                     Three months ended March 31, 2005
                                      --------------------------------
                                        US GAAP   Adjustments Adjusted
                                        Results       (B)      Results
                                                                 (A)
                                      --------------------------------
Product revenues                          $22,204         $-  $22,204
Research revenues                             231          -      231
                                      ------------ ---------- --------
  Total Revenues                           22,435          -   22,435

Costs and expenses:
   Cost of products revenues               11,389          -   11,389
   Sales and marketing expenses             4,426          -    4,426
   General and administrative expenses      3,331          -    3,331
   Research and development expenses        1,887          -    1,887
   Amortization of intangible assets          896       (896)       -
                                      ------------ ---------- --------
   Total costs and expenses                21,929       (896)  21,033

Operating income                              506        896    1,402

Other income (expense):
   Foreign currency gain                     (148)         -     (148)
   Interest expense                          (259)         -     (259)
   Interest income                             66          -       66
   Other, net                                 160          -      160
                                      ------------ ---------- --------
Other income (expense), net                  (181)         -     (181)
                                      ------------ ---------- --------

Income before income taxes                    325        896    1,221
Income taxes                                  123        292      415
                                      ------------ ---------- --------
Net income                                   $202       $604     $806
                                      ============ ========== ========

Income per share:
   Basic                                    $0.01               $0.03
                                      ============            ========
   Diluted                                  $0.01               $0.03
                                      ============            ========

Weighted average common shares:
   Basic                                   30,413              30,413
                                      ============            ========
   Diluted                                 30,893              30,893
                                      ============            ========

(A) These Adjusted Consolidated Statements of Income are for
    informational purposes only and are not in accordance with US
    generally accepted accounting principles (GAAP).

(B) For 2005, reflects the impact of amortization of intangibles
    ($896) and the related tax adjustment ($292).

(C) For 2004, reflects the impact of amortization of intangibles
    ($923), fair value adjustments to inventory ($302), stock
    compensation expense ($47) and the related tax adjustment ($423).


                       HARVARD BIOSCIENCE, INC.
          Non-GAAP Adjusted Consolidated Statements of Income
                 (In thousands, except per share data)
                              (unaudited)

                                     Three months ended March 31, 2004
                                --------------------------------------
                                         US GAAP  Adjustments Adjusted
                                         Results      (C)      Results
                                                                 (A)
                                --------------------------------------
Product revenues                          $21,882         $-  $21,882
Research revenues                             283          -      283
                                          -------- ---------- --------
  Total Revenues                           22,165          -   22,165

Costs and expenses:
   Cost of products revenues               11,588       (346)  11,242
   Sales and marketing expenses             4,298         (1)   4,297
   General and administrative
    expenses                                3,523         (2)   3,521
   Research and development
    expenses                                1,670          -    1,670
   Amortization of intangible
    assets                                    923       (923)       -
                                          -------- ---------- --------
   Total costs and expenses                22,002     (1,272)  20,730

Operating income                              163      1,272    1,435

Other income (expense):
   Foreign currency gain                     (143)         -     (143)
   Interest expense                          (186)         -     (186)
   Interest income                             62          -       62
   Other, net                                 (47)         -      (47)
                                          -------- ---------- --------
Other income (expense), net                  (314)         -     (314)
                                          -------- ---------- --------

Income before income taxes                   (151)     1,272    1,121
Income taxes                                 (100)       423      323
                                          -------- ---------- --------
Net income                                   $(51)      $849     $798
                                          ======== ========== ========

Income per share:
   Basic                                   $(0.00)              $0.03
                                          ========            ========
   Diluted                                 $(0.00)              $0.03
                                          ========            ========

Weighted average common shares:
   Basic                                   30,164              30,164
                                          ========            ========
   Diluted                                 30,164              30,164
                                          ========            ========

(A) These Adjusted Consolidated Statements of Income are for
    informational purposes only and are not in accordance with US
    generally accepted accounting principles (GAAP).

(B) For 2005, reflects the impact of amortization of intangibles
    ($896) and the related tax adjustment ($292).

(C) For 2004, reflects the impact of amortization of intangibles
    ($923), fair value adjustments to inventory ($302), stock
    compensation expense ($47) and the related tax adjustment ($423).


EXHIBIT #4

                       HARVARD BIOSCIENCE, INC.
        Reconciliation of Genomic Solutions Consolidated Gross
                           Margin Percentage
                              (unaudited)

                                            Three Months Ended
                                   -----------------------------------
                                   March   June    Sep.   Dec.   March
                                     31,    30,     30,    31,     31,
                                    2004   2004    2004   2004    2005
                                   -----------------------------------
Non-GAAP adjusted gross margin
 percentage                         43.6%  48.0%   50.5%  51.1%  50.5%
Fair value adjustments to costs of
 product revenues                    2.5%   0.7%    3.8%   0.0%   0.0%
GAAP gross margin percentage        41.1%  47.3%   46.7%  51.1%  50.5%
    CONTACT: Harvard Bioscience, Inc.
             David Green, President
             dgreen@harvardbioscience.com
             or
             Chane Graziano, CEO
             cgraziano@harvardbioscience.com
             or
             Bryce Chicoyne, CFO
             bchicoyne@harvardbioscience.com
             508-893-8999

    SOURCE: Harvard Bioscience, Inc.


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