<s>
Thumbtack	B-Application
is	O
an	O
American	O
home	O
services	O
website	O
.	O
</s>
<s>
Thumbtack	B-Application
was	O
founded	O
in	O
2008	O
by	O
Marco	O
Zappacosta	O
,	O
Jeremy	O
Tunnell	O
,	O
Jonathan	O
Swanson	O
,	O
and	O
Sander	O
Daniels	O
.	O
</s>
<s>
In	O
June	O
2010	O
,	O
Thumbtack.com	B-Application
raised	O
$1.2	O
million	O
in	O
funding	O
,	O
primarily	O
from	O
angel	O
investors	O
.	O
</s>
<s>
In	O
January	O
2012	O
,	O
Thumbtack	B-Application
raised	O
another	O
$4.5	O
million	O
through	O
a	O
Series	O
A	O
round	O
of	O
venture	O
capital	O
funding	O
.	O
</s>
<s>
In	O
June	O
2013	O
,	O
Thumbtack	B-Application
raised	O
an	O
additional	O
$12.5	O
million	O
through	O
a	O
Series	O
B	O
round	O
of	O
venture	O
capital	O
funding	O
.	O
</s>
<s>
In	O
May	O
2014	O
,	O
Thumbtack	B-Application
raised	O
$30	O
million	O
through	O
a	O
Series	O
C	O
round	O
of	O
venture	O
capital	O
funding	O
from	O
Sequoia	O
Capital	O
and	O
Tiger	O
Global	O
Management	O
.	O
</s>
<s>
In	O
August	O
2014	O
,	O
Thumbtack	B-Application
raised	O
$100	O
million	O
through	O
a	O
Series	O
D	O
round	O
of	O
venture	O
capital	O
funding	O
,	O
led	O
by	O
Google	O
Capital	O
.	O
</s>
<s>
In	O
September	O
2015	O
,	O
Thumbtack	B-Application
raised	O
$125	O
million	O
of	O
venture	O
capital	O
funding	O
,	O
led	O
by	O
Baillie	O
Gifford	O
.	O
</s>
<s>
Thumbtack	B-Application
's	O
major	O
competitors	O
include	O
Yelp	B-Application
,	O
HomeAdvisor	O
,	O
Angi	O
and	O
TaskRabbit	B-Application
.	O
</s>
