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The Lean 100 · 2026 edition
No.97
The Sum logo

The Sum

The Woodlands, TX · Firm website

80%AUM growth, 2024 to 2026
$551MAUM in the 2026 filing
70%client growth
12people at the firm

AUM by filing

$140M2023
$306M2024
$409M2025
$551M2026

Clients by filing

832023
1232024
2342025
2092026

Key people

  • Joel HergenreterChief Compliance OfficerOwner · 2 years at the firm
    in
  • Michael Rahn
    Michael RahnFounder, Lead AdvisorOwner · 5 years at the firm
    in
  • Mike Bard
    Mike BardDirector of Financial PlanningOwner · 5 years at the firm
    in
  • Chris MelberWealth ManagerOwner · 4 years at the firm
    in

Against the list

  • MeasureThis firmList median
  • AUM growth80%104%
  • Client growth70%43%
  • People127
  • AUM per person$45.9M$49.7M

Rank by measure

  • Official rankNo. 9780%
  • Client growthNo. 2870%
  • AUM added per personNo. 71$20.5M
  • AUM per personNo. 59$45.9M

AUM jump noted: this firm reported a large one-year rise with no deal we could find behind it.

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The Sum: No. 97 on The Lean 100 (2026) — Private Wealth Daily