Mike Schuh – CFO andAnne Bugge, VP – Corporate Affairs

2005 Pacific Growth Equities Life Sciences Growth Conference – San Francisco

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Forward-Looking Information

Except for historical information presented, the statements made today are forward-looking statements that are based on the opinions and estimates of our management as of today. These statements are subject to risks and uncertainties that could cause actual results to differ materially from those expected or implied. Factors that could affect our actual results include the performance and acceptance of our products, our ability to compete effectively and other risks described under the heading, “factors affecting our operating results, our business and our stock price,” included in our latest periodic report filed with the SEC. We caution investors not to place undue reliance on these forward-looking statements. We undertake no obligation to update publicly any forward-looking statements made today.

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Profile

#1 Brand - 60% share est.

#1 Installed Base - 20,000+ units

#1 Technology - ASICS, transducers

World leader in hand-carried ultrasound -

4

Benefits of SonoSite HCU

Smaller

Lighter

High performance ultrasound

wherever it’s needed

… ER

… ICU

… OR

… Imaging lab

… Doctor’s office

5

Disruptive Technology

=8 lbs.

300+ lbs.

6

Investment Thesis

Revenue growth – 63% 5-yr. CAGR

Transitioning to profitability

High and expanding gross margins

Revenue rising on new technology and expanded channels

Major new market opportunity –

CardioVascular Disease Management

Major new product cycle beginning

7

Global Diagnostic Imaging Market

MRI CT

NuclearImaging

MobilizationOpportunity

X-Ray

$17B

Ultrasound$3.5 B PET

8

Radiology40%

OB/Gyn20%

Cardiology25%

Vascular 5%

Cart-based Slow unit growth Slow $ growth Substitution risk Commoditization

Other 10%

The Impact of HCU

High unit growth High $ growth Broad market potential

HCU

Vascular Access

Surgery

ER

Anesthesia

Cardiovascular Mgmt.

Point of Care Expansion

Other 10%

9

Spawning A New Market

Historical PriceSegmentation

53%53%

27%27%

$100K+

$50 - 100K

Under $50K20%

Vascular Access

Surgery

ER

Anesthesia

Point of Care Expansion

Radiology40%

OB/Gyn20%

Other 10%

Cardiology25%

Vascular 5%

$3.5B

Traditional

Cardiovascular Mgmt.

SO

NO

SO

NO

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Hand-Carried Ultrasound Projected Growth Trajectory

* Klein Biomedical-2005

2010 Imaging PhysicalTM – Company Estimates

1999

2004

2010

$10M $195M* $1B

DiagnosticDiagnostic

Imaging

PhysicalTM

30%

Procedural20%

Procedural

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Entering Cardiovascular Disease Mgmt

Cardiovascular disease affects more than 64 million Americans 50% men/64% women who died of heart attacks had no previous symptoms Analysis of carotid artery lining can be effective indicator of asymptomatic disease SonoSite with IMT software can bring technique to physician’s office

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The Impact of HCU on CVDM

Imaging

PhysicalImaging PhysicalFamily Practice

Neuro

logis

ts

Ob/G

yn

Endocrinologists

Internal Medicine

Card

iolo

gis

ts

85,000

40,000

Diagnostic

30%

Procedural

7,500

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SonoSite Technology Proposition

180PlusTM (1999)

5.4 pounds

ASIC Transducer Design Value

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iLook® (2002)

3.0 pounds

SonoSite Technology Proposition

ASIC Transducer Design Value

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SonoSite Technology Proposition

TITANTM (2003)

7.8 pounds

ASIC Transducer Design Value

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Gen III – The Crossover PointIntroducing– MicroMAXX™

High-end cart performance in 8 lb. device

Dramatic increase in raw system

processing performance without increased size

… 4X Channels

… 4X improvement in dynamic range

… 2X bandwidth

Standard 5-year warranty

Embedded IMT

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Mobilizing High Performance Ultrasound

Traditional

Gen I6 BOPS

Gen II10 BOPS

Gen III

PERFORMANCE

SIZE

The Next Generation - Scalable

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Robust Intellectual Property Portfolio

22 issued patents in US:

Digital ultrasound under 10 lbs

Transducer technology

ASIC technology

Device designs

48 patents pending

20 in US; 28 foreign

License to former parent’s HCU-related technology

Result:

Unmatchable performance, price and size

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Driving Ultrasound Across the Clinical Spectrum

Rad

OB/Gyn

Vasc

Card/Share

d

Hospital

Office

EMED

SURGERY

ANESTH

Direct Selling Direct/Partner Mix

Rad

OB/Gyn Vas

c

Cardiology

EurologyAcute

Care

Early Diagnosis & Management

Screening

Vascular Access

Endocrinology Internal Medicine Family Practice OB/GYN

Wellness Channels

Catheter Insertion

Line Placement

Biopsy

Nerve BlockCard/Share

d

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Driving Ultrasound Across the Clinical Spectrum

Rad

OB/Gyn

Vasc

Card/Share

d

Hospital

Office

EMED

SURGERY

ANESTH

Direct Selling Direct/Partner Mix

Rad

OB/Gyn Vas

c

Cardiology

EurologyAcute

Care

Early Diagnosis & Management

Screening

Vascular Access

Endocrinology Internal Medicine Family Practice OB/GYN

Wellness Channels

Catheter Insertion

Line Placement

Biopsy

Nerve BlockCard/Share

d

21

Driving Ultrasound Across the Clinical Spectrum

Rad

OB/Gyn

Vasc

Card/Share

d

Hospital

Office

EMED

SURGERY

ANESTH

Direct Selling Direct/Partner Mix

Rad

OB/Gyn Vas

c

Cardiology

NeurologyAcute

Care

Early Diagnosis & Management

Screening

Vascular Access

Endocrinology Internal Medicine Family Practice OB/GYN

Wellness Channels

Catheter Insertion

Line Placement

Biopsy

Nerve BlockCard/Share

d

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SonoSite’s Expanding Global Presence

7 Direct Subsidiaries 75 Distributors

United

Arab

Emirates

Miami

SEATTLE

UNITED KINGDOM

GERMANYFRANCE

SPAIN JAPAN

AUSTRALIA/

NEW ZEALAND

Brasillia

Shanghai

Subsidiaries

CANADA

(Toronto)

Major Regional

Sales OfficesCorporate

Headquarters

Singapore

IndiaMexico

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Revenue Growth

CAGR 63%

$10 mm

$32 mm

$46 mm

$73 mm

$85 mm

$116 mm

1999 2000 2001 2002 20042003 ‘04 ‘05

$24 mm

$34 mm

1st Quarter

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Expanding Gross Margins

36.2%

1999 2000 2001 2002 20042003 ‘04 ‘05

64.8%

70.2%

1st Quarter

41.8%

52.2%

59.2%63.5%

67.4%

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Moving Toward Profitability

-$3.08

1999

$0.23 *

2004

-$0.12

2003

-$0.59

2002

-$1.59

2001

-$2.01

2000

* Excludes tax benefit of $1.23 per share

‘04‘05

-$0.10

$0.05

1st Quarter

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Balance Sheet Strength

($ millions) March 31, 2005

Cash and Investments $ 61.5

Total Assets $ 155.2

Long-term Debt - 0 -

Stockholders’ Equity $ 136.2

Current Ratio 5:1

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Nasdaq: SONO

www.sonosite.com