GitDealFlowsignals

Q3 2026 · Growth · Deceleration

Growth Startups Showing Deceleration

73 growth-stage startups currently classify under the deceleration signal in Q3 2026. sonic-pi-net (EdTech) leads with 94 commits over 14 days (-8%). Startups whose 14-day commit velocity fell versus the prior window, a measurable slowdown that can mean a shipped milestone, a team transition, or a strategic pivot.

Deceleration signal data last verified:

Investor insight

At growth stage, engineering signals indicate strategic direction, a major deploy-frequency spike often maps to a product launch; an infrastructure buildout often signals a new business line. Useful for secondary investors, growth funds, and corporate development teams benchmarking targets. Deceleration is not automatically a red flag. A team that just shipped a major release often slows down to regroup. Read it alongside contributor growth and new repositories: falling velocity with stable or rising contributors usually means a finished push, while falling velocity and falling contributors together can flag turnover or a stalled roadmap.

Which sectors do these deceleration startups span?

Which growth-stage startups are showing deceleration in Q3 2026?

#CompanyStageCommits (14d)ChangeContributorsSignal
1sonic-pi-net

Sonic Pi Network

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Growth94-8%378Deceleration
2hpi-schul-cloud

hpi schul cloud is aedtech growth startup based in EU, modernizing their technology stack for scale.

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Growth14-12%4Deceleration
3saleor

The made-to-measure commerce API. Built for developers and agents.

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Growth22-12%260Deceleration
4scribe-org

Open-source language solutions

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Growth7-12%61Deceleration
5dfinity

The Internet Computer aims to reinvent the internet as a computer to host secure software and a new breed of open intern

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Growth14-18%159Deceleration
6KyberNetwork

Kyber Network is a multi-chain crypto trading and liquidity hub that connects liquidity from different sources to enable

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Growth23-18%57Deceleration
7OpenC3

Open Source. Open Architecture. Command, Control and Communication

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Growth141-18%50Deceleration
8medusajs

Building blocks for digital commerce

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Growth105-19%455Deceleration
9space-wizards

Spaaaaaaaaaaaaaaaaaaaaccccccceeeeee

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Growth231-19%411Deceleration
10phase-rs

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Growth322-20%104Deceleration
11rudderlabs

Steer your Customer Data

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Growth17-23%111Deceleration
12opensearch-project

OpenSearch is a community-driven, Apache 2.0-licensed open source search and analytics suite that makes it easy to inges

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Growth23-30%347Deceleration
13dbt-labs

dbt helps data teams work like software engineers to ship trusted data, faster.

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Growth99-31%379Deceleration
14AdguardTeam

Cross-platform ad blocking and privacy protection software with 100M+ users worldwide.

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Growth643-31%93Deceleration
15hedyorg

hedyorg is aedtech growth startup based in EU, modernizing their technology stack for scale.

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Growth10-33%362Deceleration
16CelestiaProject

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Growth12-33%56Deceleration
17langfuse

Open source AI engineering platform. Debug, analyze and iterate together.

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Growth78-34%194Deceleration
18newton-physics

GitHub organization of the Linux Foundation Newton project.

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Growth62-35%83Deceleration
19dagucloud

Local-first data pipeline orchestration for scripts, SQL, containers, and private infrastructure. One binary, file-backe

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Growth23-36%77Deceleration
20rerun-io

The data layer for physical AI. Log, query, visualize, and stream to training on shared columnar storage built for multi

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Growth57-37%178Deceleration
21DimensionDev

Dimension official development organization

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Growth13-38%71Deceleration
22orangecoding

❤️ Fredy - [F]ind [R]eal [E]state [D]amn Eas[y] - Fredy keeps searching for new apartments, houses, and flats in Germany on platforms like ImmoScout24, Immowelt, Immonet, eBay Kleinanzeigen, and WG-Gesucht and instantly delivers the results to you via Slack, Telegram, Email, Discord or ntfy, so you can focus on the more important things in life ;)

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Growth24-40%52Deceleration
23besu-eth

Besu, an LF Decentralized Trust project.

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Growth24-41%286Deceleration
24Consensys

Consensys is the software engineering leader of the blockchain space. Our full-stack Ethereum products help developers b

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Growth24-41%374Deceleration
25PostHog

The single platform to analyze, test, observe, and deploy new features

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Growth76-43%391Deceleration
26activist-org

Open-source, nonprofit activism platform

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Growth27-44%256Deceleration
27tempoxyz

Tempo is the blockchain designed for payments.

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Growth42-45%72Deceleration
28SigNoz

Open source Observability Platform

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Growth33-45%207Deceleration
29PostHog

The single platform to analyze, test, observe, and deploy new features

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Growth1,621-45%391Deceleration
30intershop

Intershop offers comprehensive Commerce APIs for B2B and B2C to create flexible solutions for digital commerce.

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Growth7-46%69Deceleration
31otter-sec

Blockchain consulting and audits

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Growth9-47%354Deceleration
32Submitty

Submitty Homework Submission Server

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Growth23-48%332Deceleration
33open-telemetry

OpenTelemetry makes robust, portable telemetry a built-in feature of cloud-native software.

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Growth22-48%408Deceleration
34autowarefoundation

Open-source software for self-driving vehicles

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Growth63-48%82Deceleration
35naev

Migrated to https://codeberg.org/naev .Naev is a 2D space trading and combat game that combines elements from the action

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Growth38-48%168Deceleration
36sunlabuiuc

sunlabuiuc is ahealthcare growth startup, modernizing their technology stack for scale.

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Growth1-50%56Deceleration
37livekit

Open source WebRTC and realtime AI infrastructure

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Growth13-50%74Deceleration
38LiteFarmOrg

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Growth79-50%65Deceleration
39vendurehq

Headless Enterprise E-Commerce Platform built on an Open Source Core

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Growth32-54%284Deceleration
40RocketPy-Team

We're focused on RocketPy's development, seeking for a revolution on the way we see rocket trajectory nowadays

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Growth24-54%72Deceleration
41open-condo-software

open condo software is aenterprise saas growth startup based in LATAM, modernizing their technology stack for scale.

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Growth24-55%50Deceleration
42medplum

Healthcare infrastructure

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Growth44-56%185Deceleration
43SeismicSystems

A privacy enabled blockchain for fintechs.

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Growth4-56%7Deceleration
44debezium

Distributed open source platform for change data capture

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Growth54-56%362Deceleration
45ihmcrobotics

IHMC Robotics Lab on GitHub

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Growth4-60%79Deceleration
46FyroxEngine

Fyrox game engine

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Growth8-60%86Deceleration
47ohcnetwork

Opensource Public Utility | Open Healthcare Network

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Growth11-61%330Deceleration
48wasp-lang

Batteries included full-stack framework for React, Node.js and Prisma.

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Growth16-61%113Deceleration
49earthians

earthians Health Informatics Pvt. Ltd.

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Growth18-62%86Deceleration
50Paymenter

Open source gateway for hosting companies.

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Growth3-62%52Deceleration
51cilium

eBPF-based Networking, Security, and Observability

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Growth82-63%398Deceleration
52IntersectMBO

Intersect is a member-based organization for the Cardano ecosystem, putting the community at the center of Cardano’s de

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Growth52-64%165Deceleration
53wp-erp

An Open Source ERP Solution for WordPress

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Growth4-64%59Deceleration
54Balatro-Multiplayer

A Multiplayer Mod for Balatro

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Growth54-64%54Deceleration
55Far-Beyond-Pulsar

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Growth84-65%54Deceleration
56flaskbb

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Growth14-66%63Deceleration
57archtechx

Meticulously architected web applications.

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Growth2-67%71Deceleration
58jmix-framework

jmix framework is aenterprise saas growth startup, modernizing their technology stack for scale.

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Growth9-69%84Deceleration
59ParabolInc

Tools for building better teams

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Growth5-71%78Deceleration
60redpanda-data

The streaming data platform for developers

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Growth91-71%175Deceleration
61CosmWasm

Secure Multi-Chain Smart Contracts on the Cosmos SDK

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Growth4-73%102Deceleration
62ever-co

The Everything Platform for Businesses™

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Growth35-75%80Deceleration
63ever-co

The Everything Platform for Businesses™

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Growth35-75%80Deceleration
64finos

FINOS’ mission is to promote open innovation in financial services. See our full list of repos from our nearly 100 proje

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Growth4-75%52Deceleration
65CarbonScribe

CarbonScribe is a full-stack Stellar platform that tokenizes ecosystem services into Dynamic Carbon Credits. Built with

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Growth12-78%85Deceleration
66cpinitiative

We promote competitive programming among pre-college students through resources, competitions, clubs, and classes.

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Growth53-80%342Deceleration
67cyberbotics

Developers of Webots

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Growth1-80%128Deceleration
68ChainSafe

Building the infrastructure for web3.

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Growth19-82%141Deceleration
69hapifhir

This is the source home for the HAPI FHIR project. Note that we are in the progress of migrating our codebase from the m

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Growth4-85%267Deceleration
70onflow

A fast, secure, and developer-friendly blockchain built to support the next generation of games, apps, and the digital a

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Growth6-85%99Deceleration
71zenstackhq

Build scalable web apps with minimum code

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Growth1-86%78Deceleration
72status-im

The open source, decentralised crypto communication super app. Communities, Messenger, Wallet, Browser.

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Growth5-89%255Deceleration
73borglab

GTSAM is a library of C++ classes that implement smoothing and mapping (SAM) in robotics and vision, using factor graphs

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Growth3-96%235Deceleration
Powered by VC Deal Flow Signal , real-time GitHub engineering data for investorsData from public GitHub API

Sorted by commit velocity change (14-day window). Last updated Q3 2026.

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The free Acceleration Watch: five venture-backed teams accelerating on the engineering signal, translated into plain English, 21 to 47 days before the deck circulates. No code-reading, no card.

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Frequently Asked Questions

Which growth-stage startups are showing deceleration in Q3 2026?

73 growth-stage startups currently classify under the deceleration signal in Q3 2026. sonic-pi-net (EdTech) leads with 94 commits over 14 days (-8% change) and 378 active contributors.

What does deceleration mean at growth stage?

Startups whose 14-day commit velocity fell versus the prior window, a measurable slowdown that can mean a shipped milestone, a team transition, or a strategic pivot. Deceleration is not automatically a red flag. A team that just shipped a major release often slows down to regroup. Read it alongside contributor growth and new repositories: falling velocity with stable or rising contributors usually means a finished push, while falling velocity and falling contributors together can flag turnover or a stalled roadmap.

Why is growth the right stage to watch for this signal?

At growth stage, engineering signals indicate strategic direction, a major deploy-frequency spike often maps to a product launch; an infrastructure buildout often signals a new business line. Useful for secondary investors, growth funds, and corporate development teams benchmarking targets.

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