Sunstone PartnersSan Mateo, CA · sunstonepartners.com · SEC registered investment adviser
Buyout firmA partner for growth LEARN MORE Who We Are Sunstone Partners is a growth-oriented private equity firm that invests in AI- and technology-enabled services and software companies. We seek to partner with exceptional entrepreneurs, often as their first institutional capital partner, to help accelerate organic growth and fund acquisitions. We have over 70 years of […]
Stated: revenue $20.0M+ · equity check $75.0M to $200M · majority · Technology, Software
Industries: Business services (1 company) · Industrial services (1 company) · Software (stated)
Middle market2024 PE fund GAV $1.1B8 PE funds of 8, latest vintage 20232 transactions in 36 months26 investment professionalslast event Sep 14, 2026
Hybrid manager · probable Partnering with ambitious software and fintech companies to accelerate growth through capital, expertise, and tailored strategies.
Stated: Software, Financial services, Technology
Industries: Software (2 companies) · Tech-enabled and IT services (1 company) · Hardware and deep tech (1 company)
unsized2024 PE fund GAV not reported0 PE funds of 12 transactions in 36 months1 platform7 investment professionalslast event Aug 5, 2026
Abry Partners is an experienced private equity firm investing in middle market companies in the communications, media, information and business services industries.
Stated: equity check $20.0M to $200M · Business services, Media and telecom, Software, Financial services
Industries: Software (3 companies) · Tech-enabled and IT services (3 companies) · Hardware and deep tech (2 companies)
Upper middle market2024 PE fund GAV $14B34 PE funds of 34, latest vintage 20241 transaction in 36 months64 investment professionalslast event Sep 8, 2026
••• Locked
Stated: EBITDA $2.0M to $25.0M · Business services, Consumer, Infrastructure, Transportation and logistics and 1 more
Industries: Software (1 company) · Tech-enabled and IT services (1 company) · Hardware and deep tech (1 company)
Lower middle market2024 PE fund GAV $508M6 PE funds of 7, latest vintage 20241 transaction in 36 months1 platform10 investment professionalslast event Mar 30, 2026
••• Locked
Stated: majority or minority · Business services, Manufacturing, Technology, Consumer and 2 more
Industries: Energy, utilities and infrastructure (1 company) · Software (stated) · Tech-enabled and IT services (stated)
Lower middle market2024 PE fund GAV $623M5 PE funds of 6, latest vintage 20211 transaction in 36 months2 platforms12 investment professionalslast event Sep 17, 2026
••• Locked
Stated: Software, Financial services
Industries: Software (5 companies) · Financial services (4 companies) · Business services (2 companies)
Upper middle market2024 PE fund GAV $19B17 PE funds of 23, latest vintage 20261 transaction in 36 months1 platform8 investment professionalslast event Sep 13, 2026
••• Locked
Stated: EBITDA $10.0M to $30.0M · control · Business services, Industrials, Financial services
Industries: Financial services (12 companies) · Manufacturing (9 companies) · Business services (7 companies)
Middle market2024 PE fund GAV $4.2B31 PE funds of 31, latest vintage 20241 transaction in 36 months2 platforms30 investment professionalslast event Apr 1, 2026
A•• P•••••••Houston, TX · a•••••••••.com · SEC registered investment adviser
Buyout firm · probable••• Locked
Stated: control or majority · Industrials, Environmental services, Safety and security, Energy and 11 more
Industries: Manufacturing (6 companies) · Energy, utilities and infrastructure (5 companies) · Industrial services (2 companies)
Upper middle market2024 PE fund GAV $7.9B41 PE funds of 41, latest vintage 20241 transaction in 36 months2 platforms18 investment professionalslast event Sep 17, 2026
••• Locked
Stated: Technology, Media and telecom, Infrastructure, Software
Industries: Software (3 companies) · Tech-enabled and IT services (stated) · Hardware and deep tech (stated)
Upper middle market2024 PE fund GAV $15B54 PE funds of 55, latest vintage 20231 transaction in 36 months1 platform3 investment professionalslast event Mar 30, 2026
••• Locked
Stated: EBITDA $5.0M+ · revenue $30.0M to $300M · Business services, Industrials, Consumer, Transportation and logistics
Industries: Industrial services (1 company) · Aerospace, defense and government (1 company) · Business services (stated)
Middle market2024 PE fund GAV $1.4B24 PE funds of 24, latest vintage 20211 transaction in 36 months25 investment professionalslast event Sep 15, 2026
••• Locked
Stated: EBITDA $1.0M to $5.0M · Business services, Industrials, Manufacturing, Technology
Industries: Energy, utilities and infrastructure (1 company) · Software (stated) · Tech-enabled and IT services (stated)
Lower middle market2024 PE fund GAV $59.6M4 PE funds of 6, latest vintage 20251 transaction in 36 months1 platform1 investment professionallast event Sep 17, 2026
••• Locked
Stated: revenue $3.0M+ · Infrastructure, Technology, Software
Industries: Software (4 companies) · Tech-enabled and IT services (3 companies) · Hardware and deep tech (3 companies)
Middle market2024 PE fund GAV $1.2B19 PE funds of 19, latest vintage 20241 transaction in 36 months1 platform16 investment professionalslast event Sep 16, 2026
••• Locked
Stated: Business services, Food and beverage
Industries: Consumer products and retail (1 company) · Consumer services (1 company) · Business services (stated)
Upper middle market2024 PE fund GAV $8.2B27 PE funds of 32, latest vintage 20241 transaction in 36 months1 platform30 investment professionalslast event Sep 23, 2026
••• Locked
Stated: Business services, Technology, Software, Education
Industries: Software (7 companies) · Life sciences (4 companies) · Healthcare services (3 companies)
Lower middle market2024 PE fund GAV $368M30 PE funds of 30, latest vintage 20221 transaction in 36 months1 platform4 investment professionalslast event Sep 17, 2026
••• Locked
Stated: revenue $20.0M to $100M · equity check $35.0M+ · minority · Technology, Software
Industries: Software (2 companies) · Financial services (1 company) · Tech-enabled and IT services (stated)
Lower middle market2024 PE fund GAV $522M10 PE funds of 13, latest vintage 20211 transaction in 36 months1 platform17 investment professionalslast event Aug 31, 2026
••• Locked
Stated: Business services, Industrials, Healthcare, Technology and 2 more
Industries: Manufacturing (1 company) · Consumer products and retail (1 company) · Software (stated)
Large cap2024 PE fund GAV $86B65 PE funds of 65, latest vintage 20241 transaction in 36 months2 platforms53 investment professionalslast event Sep 9, 2026
••• Locked
Stated: revenue up to $15.0M · EV up to $50.0M · equity check $5.0M to $20.0M · control or minority · Technology, Software
Industries: Software (3 companies) · Tech-enabled and IT services (3 companies) · Hardware and deep tech (3 companies)
Lower middle market2024 PE fund GAV $109M4 PE funds of 4, latest vintage 20211 transaction in 36 months4 platforms7 investment professionalslast event Apr 14, 2025
••• Locked
Stated: EBITDA $2.0M to $8.0M · control or majority · Education, Healthcare, Media and telecom, Technology and 1 more
Industries: Business services (1 company) · Software (stated) · Tech-enabled and IT services (stated)
Lower middle market2024 PE fund GAV $276M18 PE funds of 23, latest vintage 20241 transaction in 36 months2 investment professionalslast event Aug 31, 2026
••• Locked
Stated: Technology, Software, Infrastructure
Industries: Software (1 company) · Tech-enabled and IT services (1 company) · Hardware and deep tech (1 company)
Upper middle market2024 PE fund GAV $8.7B13 PE funds of 14, latest vintage 20241 transaction in 36 months2 platforms25 investment professionalslast event Mar 31, 2026
••• Locked
Stated: Software, Infrastructure
Industries: Software (stated) · Energy, utilities and infrastructure (stated)
Middle market2024 PE fund GAV $1.4B34 PE funds of 34, latest vintage 20251 transaction in 36 months2 platforms14 investment professionalslast event Sep 2, 2026
••• Locked
Stated: minority · Technology, Healthcare, Software
Industries: Industrial services (1 company) · Manufacturing (1 company) · Software (stated)
Lower middle market2024 PE fund GAV $689M1 PE fund of 1, latest vintage 20191 transaction in 36 months1 platform12 investment professionalslast event Sep 16, 2026
E•••••• L••Leeds · e•••••••••.com · SEC exempt reporting adviser
Buyout firm••• Locked
Stated: Business services, Industrials, Consumer, Food and beverage and 1 more
Industries: Consumer products and retail (1 company) · Consumer services (1 company) · Software (stated)
Lower middle market2024 PE fund GAV $347M7 PE funds of 9, latest vintage 20211 transaction in 36 months2 platforms31 investment professionalslast event Jul 9, 2026
••• Locked
Stated: equity check $25.0M to $150M · minority · Software, Healthcare, Financial services, Building products
Industries: Software (1 company) · Healthcare services (stated) · Life sciences (stated)
Middle market2024 PE fund GAV $1.0B8 PE funds of 8, latest vintage 20221 transaction in 36 months6 investment professionalslast event Mar 31, 2026
••• Locked
Stated: Business services
Industries: Business services (stated)
Lower middle market2024 PE fund GAV $221M8 PE funds of 8, latest vintage 20241 transaction in 36 months1 platform7 investment professionalslast event Jun 29, 2026
••• Locked
Stated: Healthcare, Business services
Industries: Industrial services (1 company) · Healthcare services (stated) · Life sciences (stated)
Middle market2024 PE fund GAV $2.3B6 PE funds of 6, latest vintage 20221 transaction in 36 months1 platform27 investment professionalslast event Jun 25, 2026
••• Locked
Stated: Financial services, Software
Industries: Financial services (4 companies) · Healthcare services (1 company) · Business services (1 company)
Upper middle market2024 PE fund GAV $8.8B25 PE funds of 26, latest vintage 20241 transaction in 36 months2 platforms49 investment professionalslast event Sep 21, 2026
••• Locked
Stated: revenue $400M+ · Healthcare, Manufacturing, Life sciences, Technology and 9 more
Industries: Healthcare services (8 companies) · Life sciences (6 companies) · Business services (2 companies)
Upper middle market2024 PE fund GAV $8.0B25 PE funds of 25, latest vintage 20221 transaction in 36 months2 platforms32 investment professionalslast event Jun 18, 2026
••• Locked
Stated: Technology, Software, Financial services, Consumer
Industries: Software (1 company) · Tech-enabled and IT services (1 company) · Hardware and deep tech (1 company)
Middle market2024 PE fund GAV $1.1B5 PE funds of 5, latest vintage 20221 transaction in 36 months2 investment professionalslast event Feb 27, 2025
Hybrid manager · probable Stated: EBITDA $3.0M to $15.0M · equity check $10.0M to $40.0M · Business services, Technology, Education, Healthcare
Industries: Tech-enabled and IT services (2 companies) · Financial services (1 company) · Energy, utilities and infrastructure (1 company)
unsized2024 PE fund GAV not reported0 PE funds of 01 transaction in 36 months11 investment professionalslast event Sep 17, 2026
••• Locked
Stated: Industrials, Technology, Software, Financial services and 1 more
Industries: Software (2 companies) · Tech-enabled and IT services (2 companies) · Hardware and deep tech (2 companies)
Lower middle market2024 PE fund GAV $518M6 PE funds of 6, latest vintage 20241 transaction in 36 months3 platforms6 investment professionalslast event Sep 8, 2026
••• Locked
Stated: equity check $5.0M to $50.0M · control · Healthcare, Technology, Software
Industries: Software (1 company) · Tech-enabled and IT services (1 company) · Hardware and deep tech (1 company)
Lower middle market2024 PE fund GAV $367M4 PE funds of 5, latest vintage 20241 transaction in 36 months15 investment professionalslast event Sep 17, 2026
Stated: control · Business services, Consumer, Food and beverage
Industries: Healthcare services (1 company) · Life sciences (1 company) · Aerospace, defense and government (1 company)
Lower middle market2024 PE fund GAV $591M5 PE funds of 5, latest vintage 20241 transaction in 36 months3 platforms5 investment professionalslast event Apr 28, 2026
••• Locked
Stated: EBITDA $2.0M to $15.0M · revenue $10.0M to $100M · Business services, Energy, Infrastructure
Industries: Business services (2 companies) · Consumer products and retail (1 company) · Consumer services (1 company)
Lower middle market2024 PE fund GAV $304M8 PE funds of 8, latest vintage 20241 transaction in 36 months4 platforms14 investment professionalslast event Jul 14, 2026
••• Locked
Stated: Software
Industries: Software (2 companies)
Large cap2024 PE fund GAV $91B215 PE funds of 235, latest vintage 20261 transaction in 36 months1 platform6 investment professionalslast event Mar 31, 2026
••• Locked
Stated: EBITDA up to $100M · revenue $20.0M+ · EV up to $500M · equity check $20.0M to $50.0M · control or minority · Healthcare, Technology, Software, Infrastructure
Industries: Financial services (1 company) · Software (stated) · Tech-enabled and IT services (stated)
Lower middle market2024 PE fund GAV $387M10 PE funds of 10, latest vintage 20251 transaction in 36 months1 platform6 investment professionalslast event Apr 28, 2026
••• Locked
Stated: revenue $10.0M+ · equity check $20.0M+ · Software
Industries: Software (1 company) · Tech-enabled and IT services (1 company) · Hardware and deep tech (1 company)
Middle market2024 PE fund GAV $1.3B17 PE funds of 17, latest vintage 20251 transaction in 36 months1 platform14 investment professionalslast event Sep 16, 2026
••• Locked
Stated: Software, Technology
Industries: Software (1 company) · Tech-enabled and IT services (stated) · Hardware and deep tech (stated)
Upper middle market2024 PE fund GAV $24B23 PE funds of 26, latest vintage 20241 transaction in 36 months2 investment professionalslast event Aug 3, 2026
••• Locked
Stated: Industrials, Technology, Education, Software
Industries: Software (1 company) · Tech-enabled and IT services (1 company) · Hardware and deep tech (1 company)
Middle market2024 PE fund GAV $1.8B30 PE funds of 32, latest vintage 20241 transaction in 36 months2 platforms15 investment professionalslast event Aug 3, 2026
L•••• E•••••New York, NY · l•••••••••.com · SEC registered investment adviser
Buyout firm••• Locked
Stated: Technology, Software
Industries: Software (10 companies) · Tech-enabled and IT services (6 companies) · Hardware and deep tech (5 companies)
Upper middle market2024 PE fund GAV $6.5B20 PE funds of 22, latest vintage 20251 transaction in 36 months34 investment professionalslast event Mar 31, 2026
••• Locked
Stated: equity check $100M to $200M · control or minority · Aerospace and defense, Environmental services, Manufacturing, Distribution and 2 more
Industries: Software (1 company) · Tech-enabled and IT services (stated) · Hardware and deep tech (stated)
Lower middle market2024 PE fund GAV $501M4 PE funds of 6, latest vintage 20251 transaction in 36 months7 investment professionalslast event Apr 29, 2026
••• Locked
Stated: equity check $10.0M to $35.0M · majority or minority · Business services, Healthcare, Technology, Consumer and 1 more
Industries: Industrial services (1 company) · Software (stated) · Tech-enabled and IT services (stated)
Lower middle market2024 PE fund GAV $207M9 PE funds of 9, latest vintage 20231 transaction in 36 months1 platforminvestment professionals not trackedlast event Sep 14, 2026
Hybrid manager · probable ••• Locked
Stated: control · Infrastructure, Transportation and logistics, Industrials, Energy and 5 more
Industries: Industrial services (1 company) · Software (stated) · Tech-enabled and IT services (stated)
unsized2024 PE fund GAV not reported0 PE funds of 01 transaction in 36 months1 platform7 investment professionalslast event Jul 7, 2026
••• Locked
Stated: equity check $1.0M to $10.0M · Business services, Technology, Software, Financial services
Industries: Software (3 companies) · Financial services (1 company) · Business services (1 company)
Middle market2024 PE fund GAV $4.9B30 PE funds of 35, latest vintage 20241 transaction in 36 months1 platform5 investment professionalslast event Sep 15, 2026
Hybrid manager · probable ••• Locked
Stated: EBITDA up to $5.0M · Healthcare, Financial services, Automotive, Business services and 1 more
Industries: Healthcare services (stated) · Life sciences (stated) · Financial services (stated)
unsized2024 PE fund GAV not reported0 PE funds of 01 transaction in 36 months1 platforminvestment professionals not trackedlast event Aug 15, 2025
••• Locked
Stated: EBITDA $2.0M to $8.0M · revenue $5.0M to $50.0M · Business services
Industries: Business services (1 company) · Transportation and logistics (1 company)
Lower middle market2024 PE fund GAV $294M8 PE funds of 9, latest vintage 20211 transaction in 36 months1 platform48 investment professionalslast event Sep 17, 2026
••• Locked
Stated: Industrials, Technology, Software, Consumer and 1 more
Industries: Software (stated) · Tech-enabled and IT services (stated) · Hardware and deep tech (stated)
Lower middle market2024 PE fund GAV $86.2M4 PE funds of 4, latest vintage 20231 transaction in 36 months2 platforms5 investment professionalslast event Sep 5, 2024
••• Locked
Stated: EBITDA $3.0M to $15.0M · equity check $10.0M to $40.0M · Business services, Healthcare, Education
Industries: Healthcare services (stated) · Life sciences (stated) · Business services (stated)
Lower middle market2024 PE fund GAV $25.0M1 PE fund of 2, latest vintage 20231 transaction in 36 months1 platform9 investment professionalslast event Jun 2, 2026
••• Locked
Stated: revenue $10.0M+ · equity check $20.0M to $75.0M · Software
Industries: Software (stated)
Lower middle market2024 PE fund GAV $489M5 PE funds of 6, latest vintage 20221 transaction in 36 months4 investment professionalslast event Sep 17, 2026
••• Locked
Stated: equity check $50.0M to $200M · Business services, Industrials, Consumer, Technology
Industries: Software (stated) · Tech-enabled and IT services (stated) · Hardware and deep tech (stated)
Lower middle market2024 PE fund GAV $72.5M3 PE funds of 5, latest vintage 20231 transaction in 36 months1 platform2 investment professionalslast event Sep 17, 2026
••• Locked
Stated: EV up to $250M · control or minority · Healthcare, Technology, Software, Education
Industries: Software (2 companies) · Tech-enabled and IT services (1 company) · Hardware and deep tech (1 company)
Middle market2024 PE fund GAV $1.7B9 PE funds of 9, latest vintage 20221 transaction in 36 months6 investment professionalslast event Mar 13, 2026