When was Si-Bone founded?

Si-Bone was founded in 2008 and raised its 1st funding round 1 year after it was founded.

Where is Si-Bone located?

Si-Bone is headquartered in San Jose, United States. It is registered at San Jose, California.

How many employees does Si-Bone have?

As of Sep 30, 2026, the latest employee count at Si-Bone is 565.

Is Si-Bone a funded company?

Si-Bone is a funded company, having raised a total of $103M across 7 funding rounds to date. The company's 1st funding round was a $***** Seed round, raised on Mar 26, 2009.

When was the latest funding round of Si-Bone?

Si-Bone's latest funding was a $***** Series D round on Jun 17, 2016, with participation from 1 investor.

What is the annual revenue of Si-Bone?

Annual revenue of Si-Bone is between $100M and $500M as on Dec 31, 2025

Where does Si-Bone rank among its competitors?

Si-Bone ranks 5th amongst 400 active competitors, of which 97 are funded. It stands 6th in terms of total funding among its competitors. The most recent competitor to raise funding was WISE, which secured $34.8M in Jun, 2026.

Who are the top competitors of Si-Bone?

Si-Bone's top competitors include MicroTransponder, ATEC Spine and Perfuze. Among them, WISE secured the most recent funding round in June, 2026.

Si-Bone - 2026 Company Profile, Team, Funding, Competitors & Financials

Si-Bone is a public company based in San Jose (United States), founded in 2008 by Mark A. Reiley. It operates as a Titanium implant fixation system. Si-Bone has raised $103M in funding from Arboretum Ventures and Skyline Ventures. The company has 400 active competitors, including 97 funded and 69 that have exited. Its top competitors include companies like MicroTransponder, ATEC Spine and Perfuze.

Company Details

SI-BONE is the developer of the iFuse Implant System, a minimally invasive surgical treatment for sacroiliac (SI) joint disorders. It also provides a listing of doctors for minimally invasive sacroiliac joint fusion surgery.

Website: si-bone.com
Registered Address: San Jose, California

Key Metrics

Founded Year

2008

Location

San Jose, United States

Stage

Public

Total Funding

$103M in 7 rounds

Latest Funding Round

Series D, Jun 17, 2016, $*****

Investors

Arboretum Ventures & 11 more

Ranked

5^th among 400 active competitors

Annual Revenue

$100M - $500M as on Dec 31, 2025

Employee Count

565 as on Sep 30, 2026

Similar Companies

ATEC Spine & 344 more

Exit Details

Public

View Si-Bone's full profile

Si-Bone is associated with 2 legal entities given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Reports
Si-bone, Inc. CIN: 1459839 , United States, Active		$100M - $500M (As on Dec 31, 2025)	-	-
SI-BONE, INC. CIN: 262216351 , United States, Active	Dec 26, 999	-	329 (As on Dec 31, 2024)	-

Si-Bone got listed on Oct 17, 2018.

Click here to take a look at Si-Bone's IPO in detail

Si-Bone has raised a total funding of $103M over 7 rounds. Its first funding round was on Mar 26, 2009. Its latest funding round was a Series D round on Jun 17, 2016 for $*****. 1 investor participated in its latest round. Si-Bone has 12 institutional investors.

Here is the list of recent funding rounds of Si-Bone:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Jun 17, 2016	2708438	Series D	2537376	9246145	4430293	5466266
Nov 17, 2015	5091536	Conventional Debt	6162007	4884082	5386835	SVB & 1 more
May 26, 2015	7508712	Series D	4251399	2596257	6861736	Redline Capital Management

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View details of Si-Bone's funding rounds and investors

The founders of Si-Bone is Mark A. Reiley.

Here are the details of Si-Bone's key team members:

Mark A. Reiley: Former Founder of Si-Bone.

View details of Si-Bone's Founder profiles and Board Members

Si-Bone's employee count trend

Si-Bone has 565 employees as of Sep 26. Here is Si-Bone's employee count trend over the years:

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Top competitors of Si-Bone include MicroTransponder, ATEC Spine and Perfuze. Here is the list of Top 10 competitors of Si-Bone, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	MicroTransponder 2007, Dallas (United States), Series F	Developer of neuromodulation therapy for neurological conditions	$180M	USVP, Green Park & Golf Ventures & 11 others	65/100
2nd	ATEC Spine 1990, San Diego (United States), Public	Developer of treatment solutions for spine disorders	-	Perceptive Advisors, Armistice Capital & 12 others	64/100
3rd	Perfuze 2018, Galway (Ireland), Series A	Developer of a medical device for the treatment of acute ischemic stroke	$53.2M	Earlybird, Seroba Lifesciences & 7 others	64/100
4th	Paradigm Spine 2005, New York City (United States), Acquired	Manufacturer of stabilization devices for the healthcare industry	$142M	Athyrium Capital Management, HealthCor Partners ... & 6 others	63/100
5th	Si-Bone 2008, San Jose (United States), Public	Titanium implant fixation system	$103M	Foresite Capital, Redline Capital Management ... & 10 others	62/100
6th	Xtant Medical Holdings 2006, Belgrade (United States), Public	Manufacturer of orthobiologic products and spinal fixation implant medical systems	$11M	Orbimed, Military Health & 1 others	62/100
7th	MiRus 2015, Marietta (United States), Series D	Developer of rhenium-based implants for spine surgeries	$1.56B	Mammoth, Boston Scientific	62/100
8th	Nevro 2006, Menlo Park (United States), Acquired	Provider of high-frequency spinal cord stimulation implants	$154M	Bay City Capital, Mayo Clinic Ventures & 10 others	62/100
9th	Spineart 2005, Plan les Ouates (Switzerland), Series B	Manufacturer of spinal implants and robotic systems for surgical procedures	$139M	EGS Beteiligungen, Gimv & 1 others	61/100
10th	WISE 2011, Milan (Italy), Series D	Provider of solutions for neuromodulation and neuromonitoring	$91.4M	Principia SGR, CDP Venture Capital & 12 others	60/100