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Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 2 Disclosures • Safe harbor statement This presentation includes “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 related to Insight’s plans and expectations. Statements that are not historical facts, including those related to coronavirus strain COVID-19 (“COVID-19”), our future responses to and the impact of COVID-19 on our Company, our expectations about future financial results, our expectations regarding current supply constraints, our expectations regarding backlog shipments, future expected trends in the IT market and our opportunities for growth, are forward-looking statements. These forward-looking statements are subject to assumptions, risks and uncertainties which could cause actual results or future events to differ materially from such statements. The Company undertakes no obligation to update publicly or revise any of the forward-looking statements, except as otherwise required by law. More detailed information about forward-looking statements and risk factors is included in today’s press release and discussed in the Company’s most recently filed periodic reports and subsequent filings with the Securities and Exchange Commission. • Non-GAAP measures This presentation will reference certain non-GAAP financial information as ‘Adjusted’. A reconciliation of non-GAAP financial measures presented in this document to our actual GAAP results is attached to the back of this presentation and included in the press release issued today, which you may find on the Investor Relations section of our website at investor.insight.com. These non-GAAP measures are used by the Company and its management to evaluate financial performance against budgeted amounts, to calculate incentive compensation, to assist in forecasting future performance and to compare the Company’s results to those of the Company’s competitors. The Company believes that these non-GAAP financial measures are useful to investors because they allow for greater transparency, facilitate comparisons to prior periods and the Company’s competitors’ results and assist in forecasting performance for future periods. These non-GAAP financial measures are not prepared in accordance with GAAP and may be different from non-GAAP financial measures presented by other companies. Non-GAAP financial measures should not be considered as a substitute for, or superior to, measures of financial performance prepared in accordance with GAAP. • Constant currency In some instances, the Company refers to changes in net sales, gross profit and earnings from operations on a consolidated basis and in North America, EMEA and APAC excluding the effects of fluctuating foreign currency exchange rates. In computing these changes and percentages, the Company compares the current year amount as translated into U.S. dollars under the applicable accounting standards to the prior year amount in local currency translated into U.S. dollars utilizing the weighted average translation rate for the current period.

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 3 Table of Contents • The Insight Way • Areas of Expertise • Solutions at Work • Second Quarter 2022 Highlights and Performance • Liquidity and Debt Covenants • 2022 Outlook • Appendix

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 5 Well Positioned to Help Organizations Our expertise Data and AI Leverage analytics and AI to transform business operations and user experiences. Modern Workplace Create a productive, flexible and secure workplace. Cybersecurity Mitigate risks and secure business assets. Intelligent Edge Gather and utilize data in the most efficient way possible to enable real-time decision-making and affect pivotal outcomes. Modern Apps Create new product experiences and transform legacy applications to drive increased business value. Modern Infrastructure Architect and modernize multicloud and networking solutions to drive business transformation. Consulting Services Create competitive advantage and improve operations by aligning business goals to IT and product strategies. Managed Services Eliminate business disruption and strategically align resources. Hardware, Software and Lifecycle Services Simplify supply chain and streamline costs across the global hardware and software lifecycle. Our services

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 6 State-of-the-Art Data Center to Support Expanding Business Needs The challenge: The results: • Design and build a new data center • Improve business operations, enhance security, scalability and performance • Maintain 24x7 online access during transition • Lower the total cost of ownership The solution: • Deployed a team of 30 experts with over 120 different certifications • Used SnapStart™ to map on- and off-premises data centers • Migrated and consolidated databases to Microsoft Azure • Segmented datacenter workloads to enhance security and resiliency • ~$3 million in cost savings • No disruption during datacenter transition • Enhanced security and resiliency • Remain engaged with Client to evaluate a business continuity and disaster recovery program

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 7 Leader in Vocational Education Adopts Cloud to Prepare for Future The challenge: The results: • Enhance client and student experience across 500,000 students spread over 140 locations • Improve overall data analytics • Meet government regulatory-compliance requirements The solution: • Migrated disparate data sources to the cloud • Leveraged Windows Virtual Desktop to transition courses to online learning • Designed an application to survey students to assist with course planning • Developed analytics to measure student, teacher and course engagement • Deployed integrated metrics to assess profitability and effectiveness of course offerings • $10 million of benefits over 2 years • 50% reduction (3 months to 6 weeks) in planning efforts • Higher student and teacher satisfaction scores • Remain engaged with Client to implement advanced analytics and AI

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 8Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. Q2 2022 Performance * For the twelve months ended June 30, 2022 ** Reference “Constant currency” section on slide 2 of this presentation *** See Appendix for reconciliation of non-GAAP measures $2.7B NET SALES increase of 23% constant currency up 26%** MARGINS & METRICS GROSS MARGIN 16.0% down (40 bps) ADJUSTED SG&A*** AS A PERCENT OF NET SALES 10.8% down -130bps adjusted*** GAAP 11.2%, down -120bps ADJUSTED SG&A*** AS A PERCENT OF GROSS PROFIT 67.6% down -570bps adjusted*** GAAP 70%, down -570bps ADJUSTED EFO*** MARGIN 5.2% up 80bps GAAP 4.7%, up 70bps $438M GROSS PROFIT increase of 19% 48% services as a percent of total gross profit* 19% cloud as a percent of total gross profit* SERVICE DELIVERY SCALE HEADCOUNT Consulting, Managed, and Lifecycle Services >5,000 CASH FLOWS AND CASH CYCLE CASH CONVERSION CYCLE 48 DAYS up 15 days NET CASH FROM OPERATIONS $(442)M Days sales outstanding (DSO) -4 days Days inventory outstanding (DIO) 5 days Days purchases outstanding (DPO) -14 days Record second quarter for revenue, gross profit, Adjusted earnings from operations and Adjusted diluted earnings per share EARNINGS ADJUSTED EARNINGS FROM OPERATIONS (EFO)*** $142M increase of 45% ADJUSTED DILUTED EARNINGS PER SHARE (DEPS)*** $2.78 increase of 46% SEGMENTS NORTH AMERICA EMEA** APAC** $2.2B increase of 28% NET SALES ADJUSTED EFO***GROSS PROFIT $426M increase of 26% $350M increase of 14% $116M increase of 60% $70M increase of 53% $70M increase of 35% $18M increase of 6% $7M increase of 4% $19M increase of 41%

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 9 $367 $365 $385 $379 $438 Q2-21 Q3-21 Q4-21 Q1-22 Q2-22 $1,264 $1,295 $1,300 $1,306 $1,348 $1,405 $1,448 $1,495 $1,566 Q2-20 Q3-20 Q4-20 Q1-21 Q2-21 Q3-21 Q4-21 Q1-22 Q2-22 $2.2 $2.4 $2.6 $2.7 $2.7 Q2-21 Q3-21 Q4-21 Q1-22 Q2-22 $8.3 $8.3 $8.3 $8.4 $8.7 $9.2 $9.4 $9.9 $10.4 Q2-20 Q3-20 Q4-20 Q1-21 Q2-21 Q3-21 Q4-21 Q1-22 Q2-22 $USD in billions Trailing twelve months $2.7B NET SALES increase of 23% y/y constant currency up 26%** $438M GROSS PROFIT increase of 19% y/y $USD in billions $10.4B* increase of 20% y/y * For the twelve months ended June 30, 2022 ** Reference “Constant currency” section on slide 2 of this presentation $1.6B* increase of 16% y/y Trailing twelve months $USD in millions $USD in millions

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 10 $193 $170 $185 $176 $225 Q2-21 Q3-21 Q4-21 Q1-22 Q2-22 $589 $609 $625 $637 $661 $685 $708 $724 $756 Q2-20 Q3-20 Q4-20 Q1-21 Q2-21 Q3-21 Q4-21 Q1-22 Q2-22 $340 $323 $352 $341 $394 Q2-21 Q3-21 Q4-21 Q1-22 Q2-22 $1,130 $1,161 $1,168 $1,173 $1,217 $1,266 $1,316 $1,357 $1,410 Q2-20 Q3-20 Q4-20 Q1-21 Q2-21 Q3-21 Q4-21 Q1-22 Q2-22 $USD in millions Trailing twelve months $USD in millions Trailing twelve months SERVICES REVENUE $394M increase of 16% y/y $225M increase of 16% y/y $1.4B* increase of 16% y/y $756M* increase of 14% y/y * For the twelve months ended June 30, 2022 $USD in millions $USD in millions SERVICES GROSS PROFIT

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 11 $USD in millions Trailing twelve months $56M INSIGHT CORE SERVICES GROSS PROFIT increase of 12% y/y $103M CLOUD GROSS PROFIT increase of 30% y/y $USD in millions $203M* increase of 17% y/y * For the twelve months ended June 30, 2022 ** Reference “Constant currency” section on slide 2 of this presentation $294M* increase of 19% y/y Trailing twelve months $USD in millions $USD in millions

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 12 $USD in millions Trailing twelve months $USD in millions Trailing twelve months EARNINGS $142M increase of 45% y/y $2.78 increase of 46% y/y $428M* increase of 30% y/y $8.49* increase of 34% y/y * For the twelve months ended June 30, 2022 ** See Appendix for reconciliation of non-GAAP measures ADJUSTED EARNINGS FROM OPERATIONS (EFO)** ADJUSTED DILUTED EARNINGS PER SHARE (DEPS)**

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 13 Liquidity and Debt Covenants ** Tax Expense plus Interest Expense less non-cash imputed interest under the Company’s inventory financing facilities and the Company’s convertible notes. * “Other” includes (i) severance and restructuring expenses, net, (ii) acquisition and integration related expenses, and (iii) impairment of property and equipment, as applicable. Twelve Months Ended June 30, US Dollar in $000s 2022 2021 Adjusted Consolidated EBITDA Net income $ 263,431 $ 194,023 Interest expense 39,366 39,495 Taxes 88,404 64,165 Depreciation and amortization of property and equipment 21,927 25,913 Amortization of intangible assets 31,765 33,522 Non-cash stock-based compensation 19,260 19,861 Other* 9,996 (3,566) Adjusted consolidated EBITDA $ 474,149 $ 373,413 Less: Capital expenditures (82,498) (26,527) Adjusted consolidated EBITDA for FCCR Ratio $ 391,651 $ 346,886 Taxes and interest** $ 104,012 $ 77,586 Fixed Charge Coverage Ratio 3.8 4.5 3.77x 2.25x

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 14 Full Year 2022 Outlook - Update Other Assumptions and Exclusions: • Excludes acquisition related intangibles amortization expense of approximately $34 million (posted on website) • Excludes acquisition related or severance and restructuring and transformation expenses • No significant change in our debt instruments Adjusted diluted earnings per share excludes severance and restructuring expense and other unique items as well as amortization expense related to acquired intangibles. Due to the inherent difficulty of forecasting some of these types of expenses, which impact net earnings and diluted earnings per share, the Company is unable to reasonably estimate the impact of such expenses, if any, to net earnings and diluted earnings per share. Accordingly, the Company is unable to provide a reconciliation of GAAP to non-GAAP diluted earnings per share for the full year 2022 forecast. Assumptions: As of August 4, 2022 As of May 5, 2022 Full year net sales growth (% over prior year) Low double digit Low double digit Interest expense $30 - $35 million $30 - $35 million Effective tax rate 25% - 26% 24% - 25% Adjusted diluted EPS* $8.55 - $8.75 $7.95 - $8.15 Average share count 35.4 million 35.6 million Capital expenditures $65 - $70 million $65 - $70 million

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 16 Q2 2022 YTD | Financial Performance Six Months Ended June 30, US Dollar in $000s, unless highlighted as constant currency* 2022 2021 Change Consolidated IEI Net sales $ 5,394,227 $ 4,422,569 22% Net sales, constant currency 27% Product net sales $ 4,659,529 $ 3,782,198 23% Services net sales $ 734,698 $ 640,371 15% Gross profit $ 816,750 $ 698,157 17% Gross margin 15.1% 15.8% (70 bps) Gross profit, constant currency 19% Product gross profit $ 416,425 $ 345,211 21% Services gross profit $ 400,325 $ 352,946 13% Selling, general, and administrative expenses $ 603,641 $ 548,277 10% Selling, general, and administrative expenses, constant currency 12% Adjusted selling, general, and administrative expenses** $ 585,499 $ 532,168 10% Adjusted selling, general, and administrative expenses**, constant currency 12% GAAP earnings from operations $ 209,405 $ 155,493 35% Adjusted earnings from operations** $ 231,251 $ 165,989 39% GAAP diluted earnings per share $ 3.95 $ 2.76 43% Adjusted diluted earnings per share** $ 4.60 $ 3.21 43% * Reference “Constant currency” section on slide 2 of this presentation ** See Appendix for reconciliation of non-GAAP measures

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 17* See Appendix for reconciliation of non-GAAP measures Consolidated IEI Financial Metrics Three Months Ended Q2-21 Q3-21 Q4-21 Q1-22 Q2-22 Net Sales YoY 13% 26% 12% 21% 23% Gross margin 16.4% 14.9% 15.0% 14.3% 16.0% GAAP EFO $88.5 $83.2 $93.4 $79.8 $129.6 GAAP EFO YoY 19% 35% 12% 19% 46% GAAP EFO Margin 4.0% 3.4% 3.6% 3.0% 4.7% Adjusted EFO* $97.7 $93.5 $102.9 $89.6 $141.7 Adjusted EFO YoY 6% 30% 12% 31% 45% Adjusted EFO* Margin 4.4% 3.8% 4.0% 3.4% 5.2% GAAP Diluted EPS $1.58 $1.51 $1.69 $1.53 $2.42 GAAP Diluted EPS YoY 20% 37% 13% 30% 53% Adjusted Diluted EPS* $1.91 $1.87 $2.03 $1.81 $2.78 Adjusted Diluted EPS YoY 9% 36% 15% 39% 46% Trailing Twelve Months Q2-20 Q3-20 Q4-20 Q1-21 Q2-21 Q3-21 Q4-21 Q1-22 Q2-22 Net Sales YoY 19% 16% 8% 2% 4% 10% 13% 18% 20% Gross margin 15.2% 15.6% 15.6% 15.6% 15.6% 15.4% 15.4% 15.2% 15.0% GAAP EFO $238.5 $255.5 $271.6 $285.7 $300.0 $321.7 $332.1 $344.9 $386.0 GAAP EFO YoY —% 10% 13% 21% 26% 26% 22% 21% 29% GAAP EFO Margin 2.9% 3.1% 3.3% 3.4% 3.5% 3.5% 3.5% 3.5% 3.7% Adjusted EFO* $299.2 $312.2 $322.4 $324.1 $330.0 $351.7 $362.5 $383.7 $427.7 Adjusted EFO YoY 15% 18% 14% 13% 10% 13% 12% 18% 30% Adjusted EFO* Margin 3.6% 3.7% 3.9% 3.9% 3.8% 3.8% 3.8% 3.9% 4.1% GAAP Diluted EPS $4.23 $4.57 $4.87 $5.10 $5.36 $5.77 $5.96 $6.31 $7.15 GAAP Diluted EPS YoY -9% 1% 10% 19% 27% 26% 22% 24% 33% Adjusted Diluted EPS* $5.72 $6.00 $6.19 $6.19 $6.35 $6.84 $7.11 $7.62 $8.49 Adjusted Diluted EPS YoY 11% 14% 14% 12% 11% 14% 15% 23% 34%

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 18* Previously referred to as Insight delivered services Services Financial Metrics Three Months Ended Q2-21 Q3-21 Q4-21 Q1-22 Q2-22 Services Revenue $340 $323 $352 $341 $394 Insight Core Services* Revenue $197 $201 $216 $215 $226 Agent Services Revenue $143 $123 $137 $126 $168 Services Revenue YoY 15% 18% 17% 14% 16% Insight Core Services* YoY 17% 20% 17% 19% 15% Agent Services YoY 13% 15% 16% 5% 17% Services Gross Profit $193 $170 $185 $176 $225 Insight Core Services* $50 $46 $50 $50 $56 Agent Services $143 $124 $135 $126 $168 Services Gross Profit YoY 14% 16% 14% 10% 16% Insight Core Services* YoY 17% 18% 13% 24% 12% Agent Services YoY 13% 16% 15% 5% 18% Services Gross Margin 57% 53% 53% 52% 57% Insight Core Services* Margin 25% 23% 23% 23% 25% Agent Services Margin 100% 100% 99% 100% 100% Trailing Twelve Months Q2-20 Q3-20 Q4-20 Q1-21 Q2-21 Q3-21 Q4-21 Q1-22 Q2-22 Services Revenue $1,130 $1,161 $1,168 $1,173 $1,217 $1,266 $1,316 $1,357 $1,410 Insight Core Services* Revenue $710 $725 $712 $702 $730 $763 $794 $828 $857 Agent Services Revenue $421 $436 $457 $471 $487 $503 $522 $528 $554 Services Revenue YoY 28% 25% 17% 9% 8% 9% 13% 16% 16% Insight Core Services* YoY 33% 30% 16% 4% 3% 5% 12% 18% 17% Agent Services YoY 19% 17% 19% 18% 16% 15% 14% 12% 14% Services Gross Profit $589 $609 $625 $637 $661 $685 $708 $724 $756 Insight Core Services* $168 $173 $168 $166 $174 $181 $187 $196 $203 Agent Services $421 $436 $457 $471 $487 $504 $522 $528 $553 Services Gross Profit YoY 22% 20% 18% 14% 12% 13% 13% 14% 14% Insight Core Services* YoY 29% 27% 14% 5% 3% 5% 11% 18% 17% Agent Services YoY 19% 17% 19% 18% 16% 16% 14% 12% 14% Services Gross Margin 52% 52% 53% 54% 54% 54% 54% 53% 54% Insight Core Services* Margin 24% 24% 24% 24% 24% 24% 24% 24% 24% Agent Services Margin 100% 100% 100% 100% 100% 100% 100% 100% 100%

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 19 Appendix – Reconciliation of GAAP to Non-GAAP Financial Measures* Three Months Ended June 30, Six Months Ended June 30, US Dollars in $000s, except per share data 2022 2021 2022 2021 Adjusted Consolidated Earnings from Operations: GAAP consolidated EFO $ 129,556 $ 88,469 $ 209,405 $ 155,493 Amortization of intangible assets 7,904 8,068 15,829 16,109 Other 4,234 1,127 6,017 (5,613) Adjusted non-GAAP consolidated EFO $ 141,694 $ 97,664 $ 231,251 $ 165,989 GAAP EFO as a percentage of net sales 4.7 % 4.0 % 3.9% 3.5% Adjusted non-GAAP EFO as a percentage of net sales 5.2 % 4.4 % 4.3% 3.8% Adjusted Consolidated Net Earnings: GAAP consolidated net earnings $ 89,184 $ 58,561 $ 145,815 $ 101,729 Amortization of intangible assets 7,904 8,068 15,829 16,109 Amortization of debt discount and issuance costs — 3,013 — 5,996 Other 4,234 1,127 6,017 (5,613) Income taxes on non-GAAP adjustments (3,079) (3,042) (5,478) (3,961) Adjusted non-GAAP consolidated net earnings $ 98,243 $ 67,727 162,183 114,260 Adjusted Diluted Earnings Per Share: GAAP diluted EPS $ 2.42 $ 1.58 $ 3.95 $ 2.76 Amortization of intangible assets 0.21 0.21 0.43 0.43 Amortization of debt discount and issuance costs — 0.08 — 0.16 Other 0.11 0.03 0.16 (0.15) Income taxes on non-GAAP adjustments (0.08) (0.08) (0.15) (0.11) Impact of benefit from note hedge 0.12 0.09 0.21 0.12 Adjusted non-GAAP diluted EPS $ 2.78 $ 1.91 $ 4.60 $ 3.21 Shares used in diluted EPS calculation 36,821 37,135 36,901 36,917 Impact of benefit from note hedge (1,539) (1,660) (1,608) (1,349) Shares used in Adjusted non-GAAP diluted EPS calculation 35,282 35,475 35,293 35,568 * The non-GAAP financial measures are referred to as “Adjusted”. Adjusted earnings from operations, Adjusted net earnings and Adjusted diluted earnings per share exclude (i) severance and restructuring expenses, (ii) certain executive recruitment and hiring related expenses, (iii) amortization of intangible assets, (iv) transformation costs, (v) certain acquisition and integration related expenses, and (vi) the tax effects of each of these items, as applicable

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 20 Appendix – Reconciliation of GAAP to Non-GAAP Financial Measures* (continued) Three Months Ended June 30, US Dollar in $000s 2022 2021 Adjusted North America Earnings from Operations: GAAP EFO from North America segment $ 104,273 $ 64,119 Amortization of intangible assets 7,356 7,440 Other 4,027 878 Adjusted non-GAAP EFO from North America segment $ 115,656 $ 72,437 Adjusted EMEA Earnings from Operations: GAAP EFO from EMEA segment $ 17,968 $ 19,332 Amortization of intangible assets 430 501 Other 207 240 Adjusted non-GAAP EFO from EMEA segment $ 18,605 $ 20,073 Adjusted APAC Earnings from Operations: GAAP EFO from APAC segment $ 7,315 $ 5,018 Amortization of intangible assets 118 127 Other — 9 Adjusted non-GAAP EFO from APAC segment $ 7,433 $ 5,154 * The non-GAAP financial measures are referred to as “Adjusted”. Adjusted earnings from operations, Adjusted net earnings and Adjusted diluted earnings per share exclude (i) severance and restructuring expenses, (ii) certain executive recruitment and hiring related expenses, (iii) amortization of intangible assets, (iv) transformation costs, (v) certain acquisition and integration related expenses, and (vi) the tax effects of each of these items, as applicable

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 21 Appendix – Reconciliation of GAAP to Non-GAAP Financial Measures (continued) * The adjusted non-GAAP consolidated EFO amount used for the Adjusted non-GAAP ROIC calculation excludes amortization of intangible assets. This calculation remains consistent with the metric utilized in management’s compensation plan. ** Assumed tax rate of 26.0%. *** Average of previous five quarters. **** Computed as GAAP consolidated EFO, net of tax of $100,353 and $78,0041 for the twelve months ended June 30, 2022, and 2021, respectively, divided by invested capital. ***** Computed as Adjusted non-GAAP consolidated EFO, net of tax, divided by invested capital. Twelve Months Ended June 30, US Dollar in $000s 2022 2021 Return on invested capital: GAAP consolidated EFO $ 385,973 $ 300,017 Amortization of intangible assets 31,765 33,522 Other 9,996 (3,566) Adjusted non-GAAP consolidated EFO * 427,734 329,973 Income tax expense** 111,211 85,793 Adjusted non-GAAP consolidated EFO, net of tax $ 316,523 $ 244,180 Average stockholders’ equity*** $ 1,502,453 $ 1,319,534 Average debt*** 631,123 414,685 Average cash*** (114,258) (120,796) Invested Capital 2,019,318 1,613,423 Adjusted non-GAAP ROIC (from GAAP consolidated EFO) **** 14.14 % 13.76 % Adjusted non-GAAP ROIC (from non-GAAP consolidated EFO) ***** 15.67 % 15.13 %

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 22 Appendix – Reconciliation of GAAP to Non-GAAP Financial Measures (continued) Three Months Ended June 30, Six Months Ended June 30, US Dollar in $000s 2022 2021 2022 2021 Adjusted Consolidated Selling and Administrative Expenses: GAAP selling and administrative expenses $ 306,001 $ 277,087 $ 603,641 $ 548,277 Less: Other* 9,806 8,068 18,142 16,109 Adjusted non-GAAP selling and administrative expenses $ 296,195 $ 269,019 585,499 532,168 GAAP selling and adminstrative expenses 11.2 % 12.4 % 11.1 % 12.4 % Adjusted non-GAAP selling and administrative expenses 10.8 % 12.1 % 10.9 % 12.0 % $ 5,394,227 $ 4,422,569 Adjusted North America Selling and Administrative Expenses: GAAP selling and administrative expenses $ 243,868 $ 213,900 479,088 420,706 Less: Other* 9,258 7,440 17,017 14,857 Adjusted non-GAAP selling and administrative expenses 234,610 206,460 462,071 405,849 GAAP selling and adminstrative expenses 10.9 % 12.2 % 11.1 % 12.3 % Adjusted non-GAAP selling and administrative expenses 10.4 % 11.7 % 10.7 % 11.9 % $ 4,311,949 $ 3,414,410 * “Other” includes amortization of intangible assets, certain executive recruitment and hiring related expenses and transformation costs.

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 23 Appendix – Reconciliation of GAAP to Non-GAAP Financial Measures (continued) Three Months Ended June 30, Six Months Ended June 30, US Dollar in $000s 2022 2021 2022 2021 Adjusted EMEA Selling and Administrative Expenses: GAAP selling and administrative expenses $ 51,372 $ 53,957 $ 103,698 $ 109,404 Less: Other* 430 501 887 997 Adjusted non-GAAP selling and administrative expenses $ 50,942 $ 53,456 102,811 108,407 GAAP selling and adminstrative expenses 12.0 % 12.9 % 10.8 % 12.2 % Adjusted non-GAAP selling and administrative expenses 11.9 % 12.8 % 10.7 % 12.1 % $ 957,764,000 $ 896,210,000 Adjusted APAC Selling and Administrative Expenses: GAAP selling and administrative expenses $ 10,761 $ 9,230 20,855 18,167 Less: Other* 118 127 238 255 Adjusted non-GAAP selling and administrative expenses 10,643 9,103 20,617 17,912 GAAP selling and adminstrative expenses 15.5 % 17.6 % 16.7 % 16.2 % Adjusted non-GAAP selling and administrative expenses 15.3 % 17.3 % 16.6 % 16.0 % $ 124,514 $ 111,949 * “Other” includes amortization of intangible assets.

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 24 Financial Results by Offering Category $ in thousands Consolidated IEI by Offering Category Q1-20 Q2-20 Q3-20 Q4-20 FY 2020 Q1-21 Q2-21 Q3-21 Q4-21 FY 2021 Q1-22 Q2-22 Hardware $ 1,311,202 $ 1,184,059 $ 1,173,151 $ 1,399,661 $ 5,068,073 $ 1,315,025 $ 1,350,944 $ 1,592,495 $ 1,631,046 $ 5,889,510 $ 1,673,588 $ 1,731,116 Software 537,114 488,874 488,417 589,677 2,104,082 577,995 538,234 531,744 582,644 2,230,617 636,699 618,126 Total Products 1,848,316 1,672,933 1,661,568 1,989,338 7,172,155 1,893,020 1,889,178 2,124,239 2,213,690 8,120,127 2,310,287 2,349,242 Agent Services 105,524 126,544 107,061 117,617 456,746 119,587 142,955 122,632 136,513 521,687 126,049 168,373 Insight Core Services* 190,211 169,258 167,849 184,360 711,678 180,461 197,368 200,650 215,820 794,299 214,514 225,762 Total Services 295,735 295,802 274,910 301,977 1,168,424 300,048 340,323 323,282 352,333 1,315,986 340,563 394,135 Total Net Sales $ 2,144,051 $ 1,968,736 $ 1,936,478 $ 2,291,315 $ 8,340,579 $ 2,193,068 $ 2,229,501 $ 2,447,521 $ 2,566,023 $ 9,436,113 $ 2,650,850 $ 2,743,377 Product Cost $ 1,670,238 $ 1,517,947 $ 1,500,312 $ 1,808,504 $ 6,497,001 $ 1,721,258 $ 1,715,729 $ 1,930,096 $ 2,013,825 $ 7,380,909 $ 2,107,209 $ 2,135,895 Services Cost 148,477 126,399 128,603 140,157 543,636 140,336 147,089 152,880 167,343 607,648 164,780 169,593 Total Cost of Goods Sold 1,818,715 1,644,346 1,628,915 1,948,661 7,040,637 1,861,594 1,862,818 2,082,976 2,181,168 7,988,557 2,271,989 2,305,488 Product Gross Profit $ 178,078 $ 154,986 $ 161,256 $ 180,834 $ 675,154 $ 171,762 $ 173,449 $ 194,143 $ 199,865 $ 739,219 $ 203,078 $ 213,347 Services Gross Profit 147,258 169,403 146,307 161,820 624,788 159,712 193,234 170,402 184,990 708,338 175,783 224,542 Total Gross Profit $ 325,336 $ 324,389 $ 307,563 $ 342,654 $ 1,299,942 $ 331,474 $ 366,683 $ 364,545 $ 384,855 $ 1,447,557 $ 378,861 $ 437,889 % of Total Net Sales Hardware 61 % 60 % 61 % 61 % 61 % 60 % 61 % 65 % 64 % 62 % 63 % 63 % Software 25 % 25 % 25 % 26 % 25 % 26 % 24 % 22 % 23 % 24 % 24 % 23 % Total Products 86 % 85 % 86 % 87 % 86 % 86 % 85 % 87 % 86 % 86 % 87 % 86 % Agent Services 5 % 6 % 6 % 5 % 5 % 5 % 6 % 5 % 5 % 6 % 5 % 6 % Insight Core Services* 9 % 9 % 9 % 8 % 9 % 8 % 9 % 8 % 8 % 8 % 8 % 8 % Total Services 14 % 15 % 14 % 13 % 14 % 14 % 15 % 13 % 14 % 14 % 13 % 14 % Sales as Agent as a % of Total Services Net Sales Agent Services 36 % 43 % 39 % 39 % 39 % 40 % 42 % 38 % 39 % 40 % 37 % 43 % Insight Core Services* 64 % 57 % 61 % 61 % 61 % 60 % 58 % 62 % 61 % 60 % 63 % 57 % * Previously referred to as Insight delivered services

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 25 Appendix - Convertible Senior Notes Insight is required to settle the convertible notes principal/par value in cash with the excess being settled in shares resulting in dilution in GAAP reported Diluted Earnings Per Share (“DEPS”). The DEPS incremental shares for GAAP reporting purposes are not issued at the time of reporting and are a non-GAAP exclusion for the Company (up to the strike price of the warrants of $103.12). The bond hedge effectively raises the potential dilution point of the convertible notes and call spread from $68.32 up to $103.12, as illustrated below: Diluted Earnings Per Share (DEPS) incremental number of shares for various NSIT stock price examples:

Insight Proprietary & Confidential. Do Not Copy or Distribute. © 2022 Insight Direct USA, Inc. All Rights Reserved. 26 Appendix - Convertible Senior Notes * No automatic redemption trigger, expect convertible notes will remain outstanding for foreseeable future. GAAP diluted earnings per share (DEPS) are for reporting purposes only, no incremental shares were actually issued. ** Principal amount would be settled in cash and only premium above $103.12 would result in actual shares being issued Insight Convertible Senior Notes - $350 Million Relevant NSIT stock prices: • Price at issuance - $51.56 • Conversion ratio price equivalent - $68.32 • Sales price conversion trigger - $88.82 • Bond hedge strike price - $68.32 • Warrants strike price - $103.12 Potential dilution to existing shareholders** Triggered potential additional shares in GAAP DEPS*