Kiteworks funding rounds & valuation history
Kiteworks (formerly Accellion), the San Mateo secure file-sharing, managed file transfer and email-protection company led by CEO Jonathan Yaron. Funding from the Series 3 (Jan 2012) to the Growth equity (minority), sourced to Kiteworks, TechCrunch, WSJ, Kiteworks (as Accellion), Goodwin, SEC Form D, Insight Partners and Riverwood Capital.
Round history
Newest first. Dashed badges and striped rows are not closed transactions. “—” means the source does not disclose the figure or it cannot be computed on the same basis; see the note in each row.
| Date | Status | Round | Amount | Lead / buyer | Valuation | Val. ÷ run-rate | Source |
|---|---|---|---|---|---|---|---|
Closed round |
Growth equity (minority)Mix of primary and secondary shares; the split was not disclosed (TechCrunch). Bregal Sagemount exited in the deal (WSJ). Latest round, as of 13 Nov 2026 IST. |
$456M |
Insight PartnersWith: Sixth Street Growth |
Over $1BLower bound reported by TechCrunch and WSJ (“values the company at over $1 billion”); Kiteworks’ release gives no valuation |
—Not disclosedNo run-rate stated in the announcement |
||
Closed round |
Growth round (Series 4 preferred)Raised as Accellion. The SEC Form D covers $60M of Series 4 preferred sold; the release does not say how the rest of the $120M was structured. WSJ (2024): the round valued the company at “less than half” its 2024 valuation (no figure). |
$120M |
Bregal Sagemount |
Not disclosedNo company valuation stated by the source |
—Not disclosedNo run-rate stated in the announcement |
||
Closed round |
Series 3Raised as Accellion. Form D: $12.15M of equity sold, first sale 19 Dec 2011. Riverwood joined Baring Private Equity Partners Asia as an investor. |
$12M |
Riverwood Capital |
Not disclosedNo company valuation stated by the source |
—Not disclosedNo run-rate stated in the announcement |
Amount raised in each closed round
Amounts raised, not valuations: only the 2024 round has a (lower-bound) valuation. The 2020 and 2024 headline sizes may include secondary or non-preferred components the company did not split out.
Sources: Kiteworks, TechCrunch, WSJ, Kiteworks (as Accellion). US$ billions, linear scale.
Timeline
Each round and share sale, oldest first.
- 4 Jan 2012 · Closed
Series 3: $12M led by Riverwood Capital.
- 7 Apr 2020 · Closed
Growth round (Series 4 preferred): $120M led by Bregal Sagemount.
- 14 Aug 2024 · Closed
Growth equity (minority): $456M at Over $1B led by Insight Partners.
Cite this dataset
Free to quote with a link back. Copy this citation:
Kiteworks Funding Rounds & Valuation History. Private Valuation & Funding Round Tracker, GrowthNavigateFunding.net, updated 13 Nov 2026. https://growthnavigatefunding.net/funding/kiteworks/
Download the data
The same 3 rows as the table: numeric US$ columns, empty cells where a figure is not disclosed, and a source URL for every row.
- File
kiteworks-rounds.csv(UTF-8, comma-separated)- Stable URL
https://growthnavigatefunding.net/wp-content/uploads/2026/11/kiteworks-rounds.csv- Columns
id,date,date_precision,status,transaction_type,round,amount_usd_low,amount_usd_high,lead_or_buyer,co_leads,valuation_usd_low,valuation_usd_high,valuation_basis,valuation_to_run_rate_multiple,multiple_bound,multiple_basis,step_up_vs_prior_closed,price_per_share_usd_low,price_per_share_usd_high,shares,source,source_url,other_source_urls,notes,last_updated- Updated
- (IST)
Methodology & status definitions
How each row is labelled and calculated.
Closed round
A primary round announced by the company or confirmed in the press, bringing new money to the company.
Valuation ÷ run-rate
Post-money valuation ÷ the run-rate the company stated in that announcement (GNF calc.). Where the run-rate is “crossed” or “over” a figure, the multiple is shown as “under X×”. No row qualifies here unless shown, so no multiple is invented.
What is not a separate row
Accellion funding before 2011 (Baring Private Equity Asia and others; not itemised in authority sources), option-only Form D filings (Mar 2012 $1.41M; Feb 2017 $0.29M), debt, and acquisitions made by Kiteworks.
Updates & corrections
This page stays at one address and is updated in place; the “Last updated” date above drives the citation and the dataset metadata. Corrections: hello@growthnavigatefunding.net. Informational only; not investment advice.
Changelog
- : Dataset first compiled (batch 4, not yet published).
Sources
- Kiteworks: Private Content Network Vision Validated by $456M Growth Equity Investment From Insight Partners and Sixth Street Growth, 14 Aug 2024
- TechCrunch: Kiteworks captures $456M at a $1B+ valuation to help secure sensitive data, 14 Aug 2024
- WSJ Pro: Insight Partners and Sixth Street Invest $456 Million in Kiteworks, 14 Aug 2024
- Accellion: Accellion Secures $120 Million in Financing Led by Bregal Sagemount, 7 Apr 2020
- Goodwin: Accellion Secures $120 Million in Financing Led by Bregal Sagemount, 9 Apr 2020
- SEC EDGAR: Accellion, Inc. Form D (Series 4 Preferred; first sale 23 Mar 2020), filed 29 Apr 2020
- Insight Partners: How Kiteworks is building the private data network for the AI era, 28 Jan 2026
- Riverwood Capital: Accellion Secures $12M Investment for Expansion from Riverwood Capital, 4 Jan 2012
- TechCrunch: Enterprise Cloud File Sharing Provider Accellion Secures $12 Million, 4 Jan 2012
- SEC EDGAR: Accellion, Inc. Form D (equity; first sale 19 Dec 2011), filed 22 Dec 2011