1

This presentation includes certain “forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995,

including statements concerning our position to execute on our growth strategy in the mid-market, and our ability to expand our leadership

position and market opportunity for our inbound platform. These forward-looking statements include, but are not limited to, plans, objectives,

expectations and intentions and other statements contained in this press release that are not historical facts and statements identified by words

such as "expects," "anticipates," "intends," "plans," "believes," "seeks," "estimates" or words of similar meaning. These forward-looking statements

reflect our current views about our plans, intentions, expectations, strategies and prospects, which are based on the information currently

available to us and on assumptions we have made. Although we believe that our plans, intentions, expectations, strategies and prospects as

reflected in or suggested by those forward-looking statements are reasonable, we can give no assurance that the plans, intentions, expectations

or strategies will be attained or achieved. Furthermore, actual results may differ materially from those described in the forward-looking

statements and will be affected by a variety of risks and factors that are beyond our control including, without limitation, our history of losses, our

ability to retain existing customers and add new customers, the continued growth of the market for an inbound platform; our ability to differentiate

our platform from competing products and technologies; our ability to manage our growth effectively to maintain our high level of service; our

ability to maintain and expand relationships with our marketing agency partners; our ability to successfully recruit and retain highly-qualified

personnel; the price volatility of our common stock, and other risks set forth under the caption "Risk Factors" in our Quarterly Report on Form 10-Q

filed on November 4, 2015 and our other SEC filings. We assume no obligation to update any forward-looking statements contained in this

document as a result of new information, future events or otherwise.

Safe Harbor

3

An inbound marketing and sales

SaaS platform

Focused on the

mid-market18,000+

customers

4Customers as of 12/31/15.

5

Continued Momentum Since IPOGROWTH DRIVERS: Domestic | International | Upsell Customer

REVENUE CUSTOMERS ASRPC

The Marketing & Sales Playbook IS BROKEN

6

VS.

Cold Calling

eMail Spam

Ads

SEO

Blogging

Social

INBOUNDTRADITIONAL

7

The first four years

The last four years

The next four years

All In One

8

9

Re

ven

ue

Gro

wth

Time

Sales

Marketing

Third Play

Second Play

First Play

9

LEAD

OPPORTUNITY

CUSTOMER

All-In-OneMarketing &Sales Growth

Platform

VISITOR

10

Platform > ∑ Point Solutions

11

Screenshot from HubSpot product, 9/18/14

Blogging + SEO

12

VISITOR LEAD CUSTOMER

Social Inbox + Inbound Database

Screenshot from HubSpot product, March 2015

13

Website + Inbound Database

14

15

Website

Reporting

Ads

INBOUND15 Paid Product Launches

16

Total Addressable

Market

International

increases companies

&

New products

grow ASRPC

3M companies

X $11,135

>$33 Billion

>$33B

-3.0M is US, CAN, and Europe. 1.6M mid-market businesses with a web presence in the United States and Canada. 1.4M mid-market businesses with a web presence in Europe.

-AMI Partners data, 2014. Avg. Subscription Revenue per Customer from Q4’15

The Power of Inbound

Screenshot from HubSpot product, 02/04/16 17

2,900+ Agency Partners

18Partners as of 12/31/15.

The InboundMovement

Available in

9 languages

14,000+Registered Attendees

2,900+Partners

130,000+Members

Trained and certified

27,000+ professionals

2.5 millionMonthly Visits

BLOG

19

Partners stat as of 12/31/15. All other stats as of February 5, 2016.

HubSpot customers

see an average

5x increasein lead generation

after 24 months

Source: Internal Analysis of >3,000 customers, 2015

Month 1 Month 24Customer Age In Months

20

21Pricing as of December 31, 2015

HubSpot Pricing Today

Upgrade based on

contact database

size.

Upgrade based on features.

Cross sell new

products into both

marketing and

sales customers

$5,395

$6,580

$7,752

$8,926

$10,419

$-

$2,000

$4,000

$6,000

$8,000

$10,000

$12,000

2011 2012 2013 2014 2015

22

Average Subscription Revenue Per Customer

Editions + Contacts + Add Ons

Editions Editions + Contacts

$9,740

$10,127

$10,607

$11,135

1Q15 2Q15 3Q15 4Q15

23

Customer Growth

14,746

15,839

16,854

18,116

1Q15 2Q15 3Q15 4Q155,783

8,159

10,111

13,607

18,116

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000

20,000

2011 2012 2013 2014 2015

24

Revenue Growth

Key Financial MetricsKey financial

metrics2011 2012 2013 2014 Q1’15 Q2’15 Q3’15 Q4’15 2015

Gross Margin 61% 70% 65% 70% 73% 75% 75% 75% 75%

R&D 27% 19% 18% 17% 15% 15% 14% 14% 14%

S&M 82% 66% 67% 63% 57% 56% 62% 55% 58%

G&A 21% 16% 19% 18% 17% 16% 17% 15% 16%

Operating (Loss)

/ Income %(69%) (31%) (39%) (28%) (16%) (13%) (18%) (-8%) (14%)

CFFO (44%) (11%) (26%) (11%) (2%) 4% (8%) 5% 0%

All percentages for historical period are non-GAAP (other than CFFO) and exclude expenses associated with stock based compensation and amortization of

acquired intangibles. Please refer to the end of this presentation for a reconciliation of GAAP to non-GAAP figures. 26

Develop New

Products

28

Growth Strategy

Large Domestic

Opportunity

Large International

Opportunity

Upsell Customer

Base

1 2

3 4

Thank You

29

GAAP to Non-GAAP Reconciliation

30

HubSpot CRM.

Say goodbye to manual tasks and confusing features. Say hello to HubSpot CRM.

• Stores a companies’ most important prospect & customer data

• Designed with ease of use for small companies in mind

• Optional integration with HubSpot’s Marketing platform and Sidekick

• Free product anyone can use, integrates seamlessly with paid add-ons (Sidekick)

31Screenshot of CRM Product, March 2015.

Sidekick.

A free, lightweight set of inbox productivity tools that sales folks will love.

• Track email opens & clicks, schedule emails, and leverage templates right from your inbox

• Surfaces useful details about the contacts & companies you are communicating with

• Connects to HubSpot Marketing, Salesforce or HubSpot CRM

• Free, $10 & $ 50 user/month versions

32Screenshot of Sidekick product, March 2015.