Addition

About

Addition is an American venture capital firm founded in 2020 by Lee Fixel, who previously spent 13 years at Tiger Global Management where he rose to partner and headed the firm’s private equity division ¹². The firm is headquartered in New York City ³.

Fixel departed Tiger Global in March 2019 after playing a significant role in expanding its private investment arm with successful investments in companies including Flipkart, Spotify, Peloton, and Facebook ¹. He launched Addition in 2020, raising $1.3 billion for its debut fund, Addition One Partners, in June 2020 ⁴. The firm then raised a second fund of $1.4 billion less than four months later in October 2020 ⁴. Addition Three closed at $1.4 billion in 2021, and Addition Four at $1.5 billion in 2022 ⁵⁶. A fifth fund targeting $1.5 billion was filed in 2023 ⁷. Total committed capital across all funds is approximately $7.1 billion ⁸.

Addition operates with a solo decision-maker model — Lee Fixel is the sole partner and makes all final investment decisions, enabling rapid deal-making ¹⁸. The firm allocates approximately one-third of its capital to early-stage investments, with the remainder directed toward growth-stage opportunities ⁸. The firm has a team of approximately 10 people ³.

As of early 2026, Addition has made over 100 deals and invested in approximately 73 companies, with 17 unicorns in its portfolio ³⁹. Notable exits include the $6 billion IPO of Uruguayan payments company dLocal in 2021 and the Freshworks IPO on Nasdaq in 2021 ¹¹⁰.

Stated Thesis

(Self-reported: These represent what Addition says publicly about its approach. See Inferred Thesis for analysis of actual investment behavior.)

Addition publicly describes itself as investing in “founder-led, technology-enabled companies” ²¹¹. The firm’s stated mission is to support visionary entrepreneurs on their journey to build impactful and enduring businesses ³.

Lee Fixel has emphasized speed and conviction in his investment approach. He has been described as having “a bias for action” as an investor ¹. An account of his investing style from the SaaSBoomi community describes Fixel meeting an entrepreneur in a hotel lobby for a 45-minute iPad presentation, and a few hours later wanting to write the check with no negotiations and no term sheets ¹².

The firm’s stated check sizes range from $5-$20 million for early-stage investments and $30-$200 million for growth-stage investments ⁸. Addition targets sectors including SaaS, fintech, AI/ML, blockchain analytics, consumer tech, and developer tools ⁸¹¹.

Inferred Thesis

Based on 18 unique companies with verified, cited portfolio entries (see Portfolio table below), the following patterns emerge. Note: Addition has approximately 73+ total portfolio companies; this analysis covers ~25% of verified investments and may not fully represent the portfolio.

Sector breakdown (18 verified companies): - AI/ML: 5 of 20 (25%) — Hugging Face, Snorkel AI, Applied Intuition, Adept AI, OneChronos - Fintech/Payments: 3 of 20 (15%) — dLocal, Chainalysis, Airwallex - Developer Tools/Infrastructure: 3 of 20 (15%) — Snyk, Alchemy, Render - Healthcare: 2 of 20 (10%) — Lyra Health, Hello Vet - Enterprise SaaS: 3 of 20 (15%) — Navan/TripActions, SuperOps.ai, Chronosphere - Media/Content: 1 of 20 (5%) — Inshorts - Construction Tech: 1 of 20 (5%) — Built Technologies - Energy/Climate: 1 of 20 (5%) — Base Power - Logistics: 1 of 20 (5%) — Delhivery

(Note: percentages exceed 100% because OneChronos spans AI and fintech.)

Stage distribution (18 verified first investments, excluding follow-on rounds): - Series A: 2 of 18 (11%) — SuperOps.ai, Hello Vet - Series B: 4 of 18 (22%) — Alchemy, Hugging Face, OneChronos, Base Power - Series C: 3 of 18 (17%) — Chainalysis, Chronosphere, Built Technologies - Series D: 4 of 18 (22%) — Snyk, Lyra Health, Applied Intuition, Snorkel AI - Series E and later: 2 of 18 (11%) — Navan/TripActions, Airwallex - Growth/Pre-IPO: 2 of 18 (11%) — dLocal, Delhivery - Undisclosed stage: 1 of 18 (6%) — Inshorts

The firm skews more growth-stage than its stated one-third early-stage allocation would suggest. Only 2 of 18 verified first investments (11%) were at Series A, while 11 of 18 (61%) were Series C or later. This is consistent with Fixel’s Tiger Global background in growth-stage investing.

Geographic patterns: Addition has a notable India connection, consistent with Fixel’s extensive India experience at Tiger Global. Verified India-connected investments include Delhivery, Inshorts, and SuperOps.ai (3 of 20, 15%). The majority of investments (approximately 12 of 20, 60%) are US-based companies, with international investments in Latin America (dLocal), Australia/global (Airwallex), and the UK (Hello Vet).

Co-investor patterns: Coatue appears as a frequent co-investor (Alchemy, Applied Intuition). Other recurring co-investors include Andreessen Horowitz (Navan, Base Power), General Catalyst (Render, Applied Intuition), and Greylock (Snorkel AI). The firm frequently co-invests with other large growth-stage funds.

Notable gap vs. stated thesis: While Addition describes itself as investing in “founder-led” companies broadly, the verified portfolio shows a strong concentration in B2B enterprise software and infrastructure (developer tools, cybersecurity, blockchain analytics, cloud) rather than consumer-facing companies. Additional aggregator data (Tracxn, Crunchbase) lists Warby Parker and Allbirds as portfolio companies, but verified round-level citations for those specific investments were not found ³.

Decision speed: Multiple sources confirm extremely rapid decision-making. Fixel has a reputation for making investment decisions in hours rather than weeks ¹².

Portfolio

This table represents approximately 23 unique companies out of an estimated 73+ total portfolio companies (~32% coverage). The remaining investments could not be independently verified with round-level detail.

In Their Own Words

Lee Fixel stated regarding Snyk’s Series D in September 2020: “Snyk’s impressive growth is a signal that the market is ready to embrace a change from traditional security and empower developers to tackle the new security risk that comes with a software-driven digital world” ¹³.

Regarding Addition’s investment philosophy, the firm has publicly stated that it invests in “founder-led, technology-enabled companies” ²¹¹.

What Founders Say

Avinash Raghava, founder of SaaSBoomi (an Indian SaaS community supported by Fixel), described Lee Fixel’s character and approach: “He believes in founders and operators alike. The speed at which he moves is tremendous, his instinct unparalleled and his humility unique” ¹².

Raghava also recounted Fixel’s support for the SaaSBoomi community, noting that when Freshworks founder Girish Mathrubootham spoke to Lee about supporting SaaSBoomi, “Fixel asked no questions. He wrote a sizable first cheque because all he wanted was to help us grow the community” ¹².

Raghava further described meeting Fixel at the Freshworks IPO party: “His humility was striking, especially considering his extraordinary achievements. It was a surreal experience to witness such a successful individual remain so understated” ¹².

Chase Gilbert, Co-founder and CEO of Built Technologies (portfolio company), stated upon the company’s Series C led by Addition: “The construction industry is reliant on capital to thrive, yet money movement and spending decisions are antiquated from start to finish. Modern construction finance requires new infrastructure altogether” ¹⁹.

Note: Independently sourced founder testimonials specifically about Addition’s post-investment support are limited. The quotes above come from a community leader in Fixel’s network and a founder’s general company announcement. Dedicated searches for portfolio founder reviews of Addition’s involvement did not surface additional results.

Sources